题目链接:http://codeforces.com/problemset/problem/873/B 题目大意:一个字符串全部由‘0’和‘1’组成,当一段区间[l,r]内的‘0’和‘1’个数相等,则称为平衡子串...
2023-05-20编程教程Balanced,Codeforces,思维inputstandard input outputstandard output You are given a string s consisting only of characters 0 and 1. A substring [l, r] of s is a string slsl + 1sl + 2&hel...
2023-05-20编程教程Balanced,Codeforces,思维Description You are given a string s consisting only of characters 0 and 1. A substring [l, r] of s is a string slsl + 1sl&thi...
2023-05-20编程教程Balanced,Codeforces,substring题目: You are a coach at your local university. There are nn students under your supervision, the programming skill of the ii-th student is aiai. You have to form kk ...
2023-02-25编程教程Balanced,Codeforces,Dp