B Spirit Circle Observation 感谢@RedreamMer 巨佬 找到了我题解中的致命错误 Updata by 2022/7/20 15:29 构造的数据 #include <bits/stdc++.h> using namespace std; int a = 1e5; int main() { freopen("a.in", "w", stdout); string s; for (int i = 1; i <= a; ++i) s.push_back('0'); s.push_back('1'); for ...