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E - Array Shrinking,区间dp,Educational Codeforces Round 83 (Rated for Div. 2)
E - Array Shrinking,Educational Codeforces Round 83 (Rated for Div. 2) http://codeforces.com/contest/1312/problem/E You are given an array a1,a2,…,an. You can perform the following operation any numbe...原创 2020-03-14 02:37:50 · 198 阅读 · 0 评论 -
Favorite Dice,概率DP
Favorite Dice SPOJ - FAVDICE BuggyD loves to carry his favorite die around. Perhaps you wonder why it's his favorite? Well, his die is magical and can be transformed into an N-sided unbiased die w...原创 2019-02-13 15:09:05 · 218 阅读 · 0 评论 -
Domination,概率DP
Edward is the headmaster of Marjar University. He is enthusiastic about chess and often plays chess with his friends. What's more, he bought a large decorative chessboard withNrows andMcolumns. E...原创 2019-02-14 16:19:38 · 261 阅读 · 0 评论 -
E. Xenon's Attack on the Gangs,Codeforces Round #614 (Div. 2),树形dp
E. Xenon’s Attack on the Gangs http://codeforces.com/contest/1293/problem/E On another floor of the A.R.C. Markland-N, the young man Simon “Xenon” Jackson, takes a break after finishing his project ea...原创 2020-02-14 21:23:28 · 255 阅读 · 0 评论