High-precision calculations in C
The maximum built-in integer unsigned long long in C is about $1.8\ times 10 ^ {19} $, which will overflow once the …
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2026
Time and Space Complexity
Complete Guide to Algorithmic Complexity - Time, Space, and Asymptotic Time Complexity Complexity analysis is a core …
State Transition Equations and Dynamic Programming
In algorithmic problems, we can often see the shadow of dynamic programming, so here is a summary of dynamic programming …
P1004 [NOIP 2000 improvement group] grid score analysis and summary
This is a classic but difficult chessboard problem. Although it is the topic of NOIP in 2000, it is still quite …
Alpine flowing water, searching for sound
After nearly a day of half-day self-doubt, half-day struggle with AI (doge) and all-day hardness ratio with head and …