他说少年如歌

Problem Description Kblack loves flags, so he has infinite flags in his pocket. One day, Kblack is given an n∗m chessboard and he decides to plant flags on the chessboard where the position of eac

Skip the Class Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 569    Accepted Submission(s): 328 Problem Description Finally term be

Count the Sheep Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 846    Accepted Submission(s): 359 Problem Description Altough Skippi

Lotus and Characters Accepts: 150 Submissions: 897 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/131072 K (Java/Others) 问题描述 Lotus有nnn种字母，给出每种字母的价值以及每种字母的个数限制，她想构造一个任意长度的

MG loves gold Accepts: 451 Submissions: 1382 Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Problem Description MG is a lucky boy. He is always be able to fi