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constructive 构造
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2026
01-19
CF-1073-E. Comparable Permutations(单调性的变化)
01-17
Hello 2026——D2. Tree Coloring (Hard Version)(随机化算法可以分层实现)(猜测答案时,可以先猜测一个下界然后尝试不断提升)
2025
09-10
START203——MEX on Ranges
08-14
影石Insta360杯-2025牛客暑期多校训练营10——I.Matrix (matrix)
07-23
现代汽车前瞻杯-2025牛客暑期多校训练营3——Bitwise Puzzle 位运算谜题(MSB的作用)
07-09
The 2025 Shanghai Collegiate Programming Contest-G. 矩阵(gcd(a+bx,a)=gcd(a,b))
06-24
Edu-180-D. Reachability and Tree
06-22
Starter 189-Avoid Primes
06-12
CF-1030-B. Make It Permutation
06-11
CF-1026-C. Racing (让无人机上升还是保持不变以通过障碍)
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