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CSES Task 1628, Meet in the Middle
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2
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1587
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August 5, 2026
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Explaining a solution
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0
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18
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August 4, 2026
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Alternative O(N) solution for Social Distancing I passes 14/15 — looking for a counterexample or flaw in the approach
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2
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89
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July 30, 2026
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Not able to understand editorial of Counting liars
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0
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73
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July 26, 2026
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Is an O(n²) prefix/suffix optimization possible for Codeforces 863B (Kayaking)?
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0
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99
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July 22, 2026
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Regarding the hard route problem, how can we prove that fixing the meeting point of vertex x with the route will not cause double counting?
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0
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78
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July 21, 2026
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https://codeforces.com/problemset/problem/251/A
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1
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137
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July 10, 2026
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The hardest problem in Ha Noi City's first elimination round that no one has managed to solve onsite
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2
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1049
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July 8, 2026
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Two knights problem
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1
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795
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June 8, 2026
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CSES: Corner Subgrid Check
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1
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337
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June 7, 2026
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Silver 2020 Jan Loan Repayment with Binomial Theorem
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4
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2065
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April 24, 2026
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How to solve APIO 2019 - street lamps using 2DRQ
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1
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1081
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April 17, 2026
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About the listed question
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2
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472
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March 31, 2026
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Issue with USACO guide's solution for lasers and mirrors
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2
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557
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March 17, 2026
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Need help understand the full solution for problem #3 Purchasing Milk
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3
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625
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March 5, 2026
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CSES: All Letter Subgrid Count I
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9
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1726
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March 3, 2026
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DNC DP + Mo's at the same time? [Advanced]
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2
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803
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March 3, 2026
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Explanation for subtask #2 in Bronze P3 (2nd contest, 2026)
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3
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823
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February 22, 2026
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Confusion in Completeness of Solution for Platinum 2017 P1: Why Did the Cow Cross the Road (Mincross)
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2
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719
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February 17, 2026
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IOI 2013 Dreaming Solution
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4
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755
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February 15, 2026
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Issue in 2017 Gold Problem 3 Modern Art 2 Problem Statement / Official Solution
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4
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699
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February 12, 2026
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Can anyone help me with this problem? I have been trying since yesterday
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0
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502
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February 8, 2026
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(resolved )2025 silver open problem 3 ski slope fails for all but test case
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2
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1207
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February 8, 2026
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What counts as a template in VS code?
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1
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527
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February 7, 2026
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USACO 2022 Dec Silver 2. Circular Barn: May you help me understand this test case?
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2
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691
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January 28, 2026
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Distinct Values Subarrays
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2
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1164
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January 22, 2026
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Assisting with 868A-Bark To Unlock
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1
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759
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January 21, 2026
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Need help why my approach fails for USACO countinf liars problem
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1
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759
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January 21, 2026
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I literally, utterly have no idea ưhat this question mean
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2
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737
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January 18, 2026
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PyPy available？
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1
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504
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January 18, 2026
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