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Codeforces Round #847 (Div. 3) A - G https://codeforces.com/contest/1790 (5/7):ABCDE,写的特别慢 我写的代码又臭又长 A. Polycarp and the Day of Pi 按题意匹配,注意不是传统的 $\pi$ 阅读全文
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AtCoder Beginner Contest 130 https://atcoder.jp/contests/abc130 补补之前的 A - Rounding #include <bits/stdc++.h> using namespace std; int main () { int a, 阅读全文
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AtCoder Beginner Contest 126 https://atcoder.jp/contests/abc126 A - Changing a Character #include <bits/stdc++.h> using namespace std; int main () { i 阅读全文