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Practice › Codeforces Solutions › April Fools Day Contest 2024 ›

CF 1952C - They Have Fooled

CF 1952C - They Have Fooled Rating: - Tags: *special, brute force, schedules Solve time: 52s Verified: yes Solution Problem Understanding The input to this problem is a single integer $n$, with $0 \le n \le 12$. Despite how small this looks, the task is not about iterating or simulating anything directly from this number in a naive arithmetic sense. Instead, the problem asks for a fixed value that depends...
codeforces competitive-programming *special brute-force schedules May 31, 2026
Practice › Codeforces Solutions ›

April Fools Day Contest 2024

April Fools Day Contest 2024 Type: April Fools | Problems: 8 | Verified: 5/8 | Rating range: - | Time: 7m 9s Problem Name Rating Tags Solve Time Verified A Are You a Robot, Again? - *special, strings 32s ✓ B Is it stated? - *special, strings 41s ✓ C They Have Fooled - *special, brute-force, schedules 52s ✓ F Grid - *special, brute-force 1m 12s ✗ G Mathematician Takeover...
codeforces competitive-programming *special strings brute-force schedules binary-search dfs-and-similar May 31, 2026
Practice › Codeforces Solutions › Codeforces Round 938 (Div. 3) ›

CF 1955F - Unfair Game

CF 1955F - Unfair Game Rating: 1800 Tags: dp, games, greedy, math, schedules Solve time: 1m Verified: no Solution Problem Understanding We are asked to maximize the number of games Bob can win in a repeated XOR game against Alice. The game is played on a multiset of integers containing only ones, twos, threes, and fours. Alice wins if the XOR of all remaining numbers is non-zero; otherwise, Bob wins....
codeforces competitive-programming dp games greedy math schedules May 31, 2026
Practice › Codeforces Solutions ›

School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules)

School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) Type: Beta | Problems: 8 | Verified: 6/8 | Rating range: 900-2800 | Time: 15m 12s Problem Name Rating Tags Solve Time Verified A Rock-paper-scissors 900 implementation, schedules 1m 31s ✓ B Land Lot 1200 brute-force, implementation 1m 47s ✓ C The Race 1800 math 1m 54s ✓ D Permutations 1500 greedy 2m 3s ✗...
codeforces competitive-programming implementation schedules brute-force math greedy dp May 28, 2026