xing_mo的博客

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...

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...

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...

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...