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Codeforces Round #843 (Div. 2)

Codeforces Round #798 (Div. 2) E. ANDfinity

题目链接:http://codeforces.com/contest/1644 A. Doors and Keys 水题 #include<bits/stdc++.h> using namespace std; #define inf 0x3f3f3f3f #define lson l,mid,rt<<1 #define rson mid+1,r,(rt<<1)|1 typedef long long ll; const int mx = 3e5 + 10; .

题目链接:https://codeforces.com/contest/1243 A - Maximum Square 水题不说了 #include <bits/stdc++.h> using namespace std; const int mx = 1e5 + 50; typedef long long ll; int n; int a[mx]; int main(...