Almost increasing sequence python

Almost increasing sequence python. My code passed 17 out of 19 Test cases. Passes the first case but fails the other cases. Below is the implementation of the above approach Support my channel by donating to my CashApp. You assumed list are immutable but they are not in python. It seems like a valid Task Given a sequence of integers, check whether it is possible to obtain a strictly increasing sequence by erasing no more than one element from it. Getting true on the output would require the list incrementing up normally, or almost incrementing up like (1, 3, 2, 4). The idea is to use recursion to solve Let's call a Sequence Bad if it is non-increasing, a thing to be observed in such sequences is that if you wish to include elements from those sequences, the maximum number of elements you can include are 2, this is because if a sequence follows the order (a[i] >= a[i+1] >= a[i+2] >= >= a[i+n], no matter what subsequence you choose to hold The function unpack_iterable() in ceval. CodeChef. Programming competitions and contests, programming community. for example: Mar 19, 2020 · I think the problem is with the iterator what i've been thinking about was erasing the element that's ruining the sequence,and get back to the beginning of the sequence and add 1 to the counter,and repeat the same process for the whole sequence,and last thing is to check the condition,but the thing is the reference of that element will be invalidated after erasing so it will have a wrong Jul 13, 2019 · (I see a sequence of comments that look reactions to comments deleted in the meantime: please put any helpful information in your question and delete your reactions, too. Increase a value every Jun 7, 2013 · This assumes Python 3; for Python 2, use xrange() to avoid building a list first. Example For sequence = [1, 3, 2, 1], the Dec 23, 2019 · For sequence = [1, 3, 2], the output should be almostIncreasingSequence (sequence) = true. for i in range (n-1): Oct 31, 2016 · The below is my code for largest monotonic subsequence (either increasing or decreasing). Oct 21, 2022 · Last Updated : 21 Oct, 2022. So I spent 10,000 of my 12,300 coins (ouch!) to unlock them. The Longest Increasing Subsequence (LIS) problem is to find the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in increasing order. Hot Network Questions Oct 1, 2020 · There is no one element in this array that can be removed in order to get a strictly increasing sequence. The increasing sequences possible are: Dec 18, 2023 · A Simple Solution is to use Dynamic Programming Solution of Longest Increasing Subsequence (LIS) problem. Jan 3, 2024 · There is no one element in this array that can be removed in order to get a strictly increasing sequence. Mar 5, 2021 · Showing how to get to the solution on the challenge Almost Increasing Sequence using Javascript00:00 Intro (explaining question)00:56 Figuring Solution09:20 For sequence = [1, 3, 2, 1], the output should be. Even though the value of (i, j) or looping is exactly same, but for the higher length inputs, the while loop program is Another approach would be to declare a false boolean before the loop and keep track of the largest number so far in your loop. For sequence = [1, 3, 2, 1], the output should be almostIncreasingSequence(sequence) = false; You signed in with another tab or window. For each candidate, recursively continue the process, till no valid candidates are found, and then return the LIS sequence obtained. temp_seq = [i] Nov 17, 2018 · In this video we are going to look at increasing, decreasing, bounded and monotonic sequences and a theorem for convergence of a sequence. This is how I'm doing it so far but it looks a bit hacky. Sep 9, 2018 · Balancedsan September 9, 2018, 5:05pm 1. ) – greybeard Jul 13, 2019 at 6:00 Jun 16, 2015 · One problem (but not the only one) with your code is that you are always adding the elements to the same possible_list, thus the lists in bigger_list are in fact all the same list! Jun 5, 2021 · Return true if the array can become "strictly increasing" by removing no more than one element. Jun 3, 2018 · The input to the code is an array of integers, and an almost increasing sequence is such an array that can be turned into a strictly increasing sequence of integers by removing 0 or 1 elements. index(minele) + 1. Jan 27, 2022 · Almost increasing sequence in python. For sequence = [1, 3, 2], the output should be. So this is javascript challenge I attempted in code signal. For sequence [1, 3, 2], the output should be: almostIncreasingSequence(sequence) = true. An almost-increasing subsequence of length 3 3 can be found (for example taking a2,a3,a5 = [2, 4, 3] a 2, a 3, a 5 = [ 2, 4, 3] ). Codeforces. Nov 9, 2017 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright JAVA algorithm training exercise quiz and answers. , i passed all the test but failed 1 of the hidden test and I am unsure why import sys;input=sys. instagram. I have written this code in Python 3: Apr 30, 2017 · I need to determine a function that for a given a sequence of integers (as an array) and that can determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. The sorted() call is optional; without it a set() is returned of the missing values, with it you get a sorted list. Random Increasing Number. In mathematics, a sequence of positive real numbers is called superincreasing if every element of the sequence is greater than the sum of all previous elements in the sequence. Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. The following code will give you the length for the chunks: The idea is that, in an increasing sequence, the difference between the index and the value will remain the same. EXAMPLE: input_array = [1, 1, 1], the output should be array_change (input_array) = 3. You can remove 3 from the array to get the Aug 24, 2020 · Strictly increasing sequence JavaScript - Given a sequence of integers as an array, we have to determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. app/$JoshuaCadavez***** Mar 16, 2018 · Moreover, If removing only one element from the list results in a strictly increasing list, we still consider the list true. This is the logic I've built. Task Given a sequence of integers, check whether it is possible to obtain a strictly increasing sequence by erasing no more than one element from it. boolean noFailuresYet = true; for(int i = 0; i < sequence Solution 1: In JavaScript, an "almost increasing sequence" is a sequence of numbers that can become strictly increasing by removing no more than one element. Contribute to carolynfischer/various_python_scripts development by creating an account on GitHub. For example, if input is {1, 101, 2, 3, 100, 4, 5}, then output should be [1,2,3,100] (1+2+3+100 is the highest sum) Aug 2, 2016 · Or if I had a list that looked like this: x = [89, 90, 89, 88], I would want to return 0 because it is the only part of the sequence that is monotone decreasing from the first index of the list. And you can refer to any item in the sequence by using its index number e. The output should be true if the array is an almost increasing sequence, and false otherwise. I solved the problem using two methods. Demo: @loretoparisi none of the numbers in the output are consecutive. def almostIncreasingSequence(sequence): . On each move you are allowed to increase exactly one of its element by one. Jan 23, 2019 · Given that sequence[i-1]>sequence[i] either one of those needs to be removed. Sorry for the difficulty in explaining. Here is my code. pop items for mandatory targets after the starred May 2, 2013 · Here's an (almost) one-liner: Obtain a strictly increasing sequence python. def almostIncreasingSequence(sequence): n=len(sequence) count=0. Jul 10, 2021 · Codesignal - almostIncreasingSequence solution. Jan 2, 2016 · I was solving this leetcode problem link in which we are supposed to find the longest increasing sub-sequence in a list or array. Oct 19, 2021 · For example, consider subsequence {0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11}. 4. For sequence = [1, 3, 2], the output should be almostIncreasingSequence (sequence) = true. There is no one element in this array that can be removed in order to get a >strictly increasing sequence. If you reach an element that is less than or equal to that and your boolean is false, you set a boolean to true. Algorithm. First using the while loop. May 14, 2018 · #Codefight almostIncreasingSequence Chào các bác, em đang ngồi mò mẫm làm bài tập python trên codefight, và đang dừng ở bài này almostIncreasingSequence Mô tả yêu cầu của em nó: Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. Can someone please help me out on the second input case: 5 3 2 1 4. I hadn't done any research prior to coding this up and was unaware that it is a common computer science question. CodeForces. There is no one element in t. Store the result in a variable called “ res “. arrange(start, stop, step) Parameters: start is the starting value. almostIncreasingSequence (sequence) = false. gitignore","contentType":"file"},{"name":"absolute_values_sum Sep 18, 2022 · Please follow us https://www. It seems to have an index error, but I do not understand why. Jan 29, 2018 · Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. Step 1: As we have to generate an almost increasing sequence of integers so first we will define a function called generateSequence. From my subsequent research, it seems that the generally accepted most efficient algorithm is O (N log N). Codility OddOccurrencesInArray Problem - Recursion and Python. g. What is the sort() method in Python? This method takes a list and Sep 6, 2022 · On each move, you are allowed to increase exactly one of its element by one. You can remove 3 from the array to get the strictly We would like to show you a description here but the site won’t allow us. In Python, the sequence index starts at 0, not 1. append(minele) ind = lis. – . append(sequence[i]) i = helper[i] # Look up what the optimal predecessor is of that index solution. Let’s learn them with Examples. . Sample Input: 2 3 1 3 2 5 5 3 2 1 4. Sequences in Python. Mar 24, 2021 · def almostIncreasingSequence(sequence): def is_increasing(l): return all(l[i] > l[i - 1] for i in range(1, len(l))) if is_increasing(sequence): return True # Find non-increasing pair left, right = 0, 0 for i in range(len(sequence) - 1): if sequence[i] >= sequence[i + 1]: left, right = i, i + 1 break # Remove left element and check if it is Jan 22, 2020 · My Solution. community/Thanks for watching us Dev19🖤 Mar 24, 2021 · Almost increasing sequence in python. 2) For sequence = [1, 3, 2], the output should be almostIncreasingSequence (sequence) = true. stop is the ending value. – Onur-Andros Ozbek Feb 4, 2020 at 0:31 Dec 14, 2016 · In this case, the sequence should also be a parameter of the function, giving the signature: def has_sequence(array, sequence): Next, I would rely on Python iterations to "check" if array is a list, or at least an iterable. reverse() # Reverse the solution since we populated it in reverse order Other remark Feb 4, 2020 · At each run of the for loop, I want to take the original sequence array and pop element i out of it to see if the remaining array is a strictly increasing sequence. Let's go through it step by step: 1. minele = min(lis[ind:]) newlis. Sep 27, 2023 · Longest Increasing Sequence using Recursion: The problem can be solved based on the following idea: Let L (i) be the length of the LIS ending at index i such that arr [i] is the last element of the LIS. In this article, I will provide code examples for the sorted() and sort() methods and explain the differences between the two. Practice this problem. A strictly increasing sequence is a sequence where each element is greater than the previous one. So the first element is s[0] and the second element is s[1]. [1] [2] Formally, this condition can be written as. Find the minimal number of moves required to obtain a strictly increasing sequence from the input. 26A - Almost Prime . If we found thrid element that is j, it means we have got our number triplet that is fulfilling Mar 2, 2019 · I was working on a problem that determines whether the digits in the numbers are in the increasing sequence. i = 2 while i < len(sequence): if sequence[i - 1] >= sequence[i]: removeCount += 1 if sequence[i - 2] >= sequence[i]: sequence[i] = sequence[i - 1 ] i += 1 return (removeCount < 2 ) Dududoo. for all n ≥ 1. You signed out in another tab or window. Constraints: 2 ≤ sequence. There is no one element in this array that can be removed in order to get a strictly increasing sequence. 1656B Feb 17, 2020 · 1) For sequence = [1, 3, 2, 1], the output should be almostIncreasingSequence (sequence) = false. We can remove 3 from the array to get the strictly increasing sequence [1, 2]. com/dev. Example For sequence = [1, 3, 2, 1], the May 28, 2022 · Python List: Exercise - 161 with Solution. For inputArray = [1, 1, 1], the output should be arrayChange(inputArray) = 3. Input/Output. Oct 18, 2020 · So all you have to do is keep a track of the smallest number on the left, and iterate. The Maximum Sum Increasing Subsequence (MSIS) problem is a standard variation of the Longest Increasing Subsequence (LIS) problem. Problem with indexing in a monotone sequence. For sequence = [1, 3, 2] the output should be. Alternately, you can remove 2 to get the strictly increasing sequence Mar 25, 2017 · Python表示するすべてのテストに合格するコードです。 """Return whether it is possible to obtain a strictly increasing sequence by removing no Dec 26, 2018 · Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. Two mistakes that I found in your code . append(i) temp_seq_len += 1. Alternately, we can remove 2 to get the strictly increasing Jun 28, 2023 · Longest Increasing Sequence using Recursion: The problem can be solved based on the following idea: Let L (i) be the length of the LIS ending at index i such that arr [i] is the last element of the LIS. We can remove 3 from the array to get Introduction to Python sequences. Jan 17, 2021 · Write a recursive program to find the list of elements that make up the sum of maximum sum subsequence of the given array such that the integers in the subsequence are sorted in increasing order. 1656E - Equal Tree Sums . The maximum sum increasing subsequence is {8, 12, 14} which has sum 34. 2. almostIncreasingSequence(sequence) = true. Write a Python program to check if a given list is strictly increasing or not. python3. This function will take a parameter of desired length for the sequence as input. For example −For sequence = [1, 3, 2, 1], the output should be function (sequence) = false. Example: For sequence = [1, 3, 2, 1], the output should be. 2 ≤ sequence. Pro-Sequence. Then, L (i) can be recursively written as: L (i) = 1 + max (L (j) ) where 0 < j < i and arr [j] < arr [i]; or. gitignore","path":". true if it is possible, false otherwise. You can remove 3 from the array to get the strictly increasing sequence [1, 2]. For sequence = [1, 3, 2, 1], the output should be almostIncreasingSequence(sequence) = false. Finally, we return sum of all values (In LCS problem, we return max of all values). You can remove 3 from the array to get the Aug 22, 2020 · Almost increasing sequence in python. skipped = 0 for c in sequence: if a < b Superincreasing sequence. Almost Increasing Sequence, Few Test Cases Fail. Print the result, along with a message indicating if the list is strictly increasing or not. Aug 16, 2022 · By using arrange () function, we can create a sequence of linearly increasing values. Sequences are containers with items stored in a deterministic ordering. Like LIS problem, we first compute count of increasing subsequences ending at every index. So comparing floats with == may do different things depending on environment. def candidates(lst, base_index, min_val): if base_index>=len(lst): Feb 17, 2018 · almostIncreasingSequence(sequence) = false; There is no one element in this array that can be removed in order to get a strictly increasing sequence. Reload to refresh your session. For sequence = [1, 3, 2], the output should be −. Apr 8, 2011 · You can't configure it globally cause it's not applying a tolerance it's comparing the actual bit values. - GitHub - Euler013/almostIncreasingSequence: Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no Nov 18, 2018 · For instance, For sequence = [1, 3, 2, 1], the output should be. It turns out, the last test (#34) is expecting an outcome of true, and is passing an array of ints 100,000 long, in order from 1 to 100000! Dec 8, 2021 · It basically works on the premise that you can only have a single flaw in the original series of positive integers. I do not understand why this one fails, though: Input: sequence: [3, 5, 67, 98, 3] Output: false Expected Output: true Console Output May 1, 2023 · Use the “ all () ” function to check if all pairs of adjacent elements satisfy the condition i < j, where i and j are the two elements in the pair. Contribute to RicheyHans/-JAVA-algorithm development by creating an account on GitHub. , s[0] and s[1]. Even $5 helps!https://cash. More Examples: Apr 1, 2020 · An approach without using in-built python modules and with code complexity of O (n) if x is None or x + 1 == i: temp_seq. large_seq_len = temp_seq_len. In the UNPACK_EX case, the function will do the following: collect all items for mandatory targets before the starred one. As there is no obvious reasons, to me, that has_sequence('once upon a time', 'e u') should fail. So the answer is 3 3. 1882A - Increasing Sequence solution in python, cpp CodeForces. Hot Network Questions Mar 9, 2022 · Almost Increasing Sequence Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. stdin. Feb 14, 2020 · So the task is this: You are given an array of integers. length ≤ 10^5, -10^5 ≤ sequence[i] ≤ 10^5. Most of the solutions are written in Python and Javascript, when possible multiple solutions are added. If the sequence s has n items, the last item is s Various python scripts. There are many types of sequences in Python. First of all you have to replace > with >= in comparisons (because it should be a strictly increasing sequence), then you shoud try to remove either sequence[i] or sequence[i+1], accepting the first one that preserves locally the incresing property. 1. The interval mentioned is half opened i. For sequence = [1, 3, 2], the output should be almostIncreasingSequence(sequence) = true. So we have 2 cases: remove sequence[i-1] -> check if {a, sequence[i], c, remainder} is strictly increasing ; remove sequence[i] -> check if {a, sequence[i-1], c, remainder} is strictly increasing; Note that in both cases we want to check if the remainder is strictly {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":". Alternately, you can remove 2 to get the strictly increasing sequence [1, 3]. Basically, I've created a copy of list and I'm doing the testing on the copy. Example. array, str and more, supports lists of objects and custom comparison methods through the key parameter that works like the one in the builtin sorted function, can return the elements of the subsequence or their Aug 13, 2020 · almostIncreasingSequence(sequence) = false. the arrays can be in range. c is changed to handle the extended unpacking, via an argcntafter parameter. So that as an extra digit is added to the numbers_size the increment is multiplied by 10. For example, the length of LIS for {10, 22, 9, 33, 21, 50, 41, 60, 80} is 6 and LIS is {10, 22, 33, 50, 60, 80}. So, it finds the first flaw, sees if it can be fixed by 'flipping' the first or second of integer in the flaw and it checks that the rest of the sequence in that case is still strictly increasing (without allow further flips). count , which makes the code cleaner as using enumerate : Jul 12, 2012 · I want to test the performance of some code using an exponentially increasing value. almostIncreasingSequence(sequence) = false. Now, the approach I took to solve the problem was, For instance, consider the number 567 Jan 18, 2017 · Almost increasing sequence in python. 3. L[i] = L[j] this is going to make L[i] point to the same list pointed by L[j] 2. else: if temp_seq_len > large_seq_len: large_seq = temp_seq. I created a code for this through research and Youtube videos, and no I did not do pure copy and paste before the post gets taken down and downvoted to oblivion; I actually understood how the code worked and tried it out on Aug 12, 2020 · Almost increasing sequence in python. Sep 3, 2021 · In Python, you can sort data by using the sorted() method or sort() method. Mar 13, 2019 · Example. You switched accounts on another tab or window. Step 2: After declaring the function we will define a blank array for storing the sequence and name it as sequence. Iterate increasing values in two lists. Moreover, If removing only one element from the list results in a strictly increasing list, we still consider the list true. e. How to generate all non-decreasing sequences with a maximum step of 1? 0. length ≤ 1000, -10000 ≤ sequence[i] ≤ 10000. handles increasing, nondecreasing, decreasing and nonincreasing subsequences, works with any sequence objects, including list, numpy. [Start, Stop) Syntax: numpy. Types of Sequences in Python. increasing values in numpy array inside out. Using nested for loop. if n<=2: return True. Thank you in advance for the help! Jun 4, 2021 · solution = [] i = indexes[-1] # start with the index of the last value of the longest sequence while i >= 0: solution. However that's not enough. Python sequences are of six types, namely: Mar 29, 2012 · The permutation will not be an increasing sequence initially. Oct 25, 2017 · Solution 1. removeCount = 0 if sequence[ 0] >= sequence[ 1 ]: removeCount += 1 . Sample Solution: Python Code: a, b, * sequence = sequence. Example For Given a sequence of integers as an array, determine whether it is possible to obtain a strictly increasing sequence by removing no more than one element from the array. Example For sequence = [1, 3, 2, 1], the Jan 25, 2010 · If you divide n elements into roughly k chunks you can make n % k chunks 1 element bigger than the other chunks to distribute the extra elements. Sample Output: Alice Bob. almostIncreasingSequence(sequence) = false; There is no one element in this array that can be removed in order to get a strictly increasing sequence. readline;R=lambda:list(map(int,input(). Each sequence data type comes with its unique capabilities. Minimum number of strictly increasing subsequences. Though it seems to be working fine with the testcases I tried, is there a more efficient way to do this, because the worst cast time complexity of this code is O (n^2) for the case the list is Jul 20, 2023 · We will iterate through the array and update these pointers when we found increasing element. split()));n,q=R();a=R();res=[0]*(n) for i in range(2,n): res[i]=res[i-1]+int(a[i-2]>=a[i-1]>=a[i Task Given a sequence of integers, check whether it is possible to obtain a strictly increasing sequence by erasing no more than one element from it. x : getting nothing output for a sequence in a series. This method returns an array with evenly spaced elements as per the interval. I understand why one of those test cases failed. collect all remaining items from the iterable in a list. While C Python uses C doubles this is not required in the spec, it may change in the future and other Python variants may do other things. for j in (0, i): The whole subarray is not almost-increasing, because the last three elements satisfy 4 ≥ 3 ≥ 3 4 ≥ 3 ≥ 3. Hot Network Questions Reference request - Pillai-Selberg Theorem Apr 14, 2017 · Spoiler Alert! I could not pass the last hidden test either. In order to keep track of the index, we can use an itertools. 19. My approach is to iterate through the sequence array, check if the current element is greater Mar 2, 2019 · I wrote a code to obtain non decreasing sub-sequence from a python list. Explanation: For the first example, Alice can remove the 3 or the 2 to make the sequence increasing and wins the game. LeetCode. I think what you're describing is the longest list of increasing numbers in the sequence with correspondingly increasing indices in the sequence. A sequence is a positionally ordered collection of items. 0. Alternately, you can remove 2 to get the strictly increasing sequence Apr 25, 2019 · The task is to find out if it is possible to get a strictly increasing sequence by removing no more than one element. // We count all increasing subsequences ending at every. no nu qe hu so ij ho ms wq ep