比赛链接:AtCoder Beginner Contest 387
A - Happy New Year 2025
思路:模拟即可。
#include <bits/stdc++.h>
#define endl '\n'
#define rep(i, a, n) for (int i = a; i <= n; i++)
#define per(i, n, a) for (int i = n; i >= a; i--)
#define LL long long
#define IOS \
ios::sync_with_stdio(0); \
cin.tie(0); \
cout.tie(0);
using namespace std;
int a,b;
int main()
{
cin >> a >> b;
cout << (a + b) * (a + b);
return 0;
}
B - 9x9 Sum
思路:模拟即可。
#include <bits/stdc++.h>
#define endl '\n'
#define rep(i, a, n) for (int i = a; i <= n; i++)
#define per(i, n, a) for (int i = n; i >= a; i--)
#define LL long long
#define IOS \
ios::sync_with_stdio(0); \
c

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