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A 清楚姐姐的学术群 int main() { int n = read(), m = read(), a = read(), b = read(); for(int i = 1; i <= n; i++) people[i].push_back(0); for(int i = 1; i <= m; 阅读全文
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C 猪脑过载 思路： 我是把第一个位置放1，最后一个位置放1，中间放0的，其实也可以是第一个位置放2，其他位置放0。 代码： int main() { int T = read(); while(T--) { int n = read(); if(n == 1) { cout << 2 << end 阅读全文
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A 奇偶判断 int main() { string s; cin >> s; int x = s[6] - '0'; if(x % 2) cout << 1 << endl; else cout << 0 << endl; return 0; } B 字母补全 思路: 依次枚举每个位置的后26位（ 阅读全文
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A - Square String? /* qwq! */ #include <iostream> #include <algorithm> #include <cstring> #include <cstdio> #include <map> #include <vector> #include 阅读全文
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A - Make postcards signed main() { int T = read(); while(T--) { int a = read(), b = read(), n = read(); int cnt = 0; while(a % 2 == 0) { cnt++; a /= 2 阅读全文
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A 阿宁的柠檬 signed main() { int a = read(), b = read(), n = read(); LL mi = 1 * n; LL ma = a * n + b * n; cout << mi << ' ' << ma << endl; return 0; } B 阿 阅读全文
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H - The Tag Game 题目： Alice got tired of playing the tag game by the usual rules so she offered Bob a little modification to it. Now the game should be 阅读全文