PAT 天梯赛 L1-024. 后天 【取余】

题目链接

https://www.patest.cn/contests/gplt/L1-024

题意
给出一个数，表示星期几，输出后天是星期几

思路
取余的时候要小心点

AC代码

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cmath>
#include <deque>
#include <vector>
#include <queue>
#include <string>
#include <cstring>
#include <map>
#include <stack>
#include <set>
#include <cstdlib>
#include <ctype.h>
#include <numeric>
#include <sstream>
using namespace std;

typedef long long LL;
const double PI = 3.14159265358979323846264338327;
const double E = 2.718281828459;
const double eps = 1e-6;
const int MAXN = 0x3f3f3f3f;
const int MINN = 0xc0c0c0c0;
const int maxn = 1e5 + 5;
const int MOD = 1e9 + 7;

int main()
{
    int n;
    cin >> n;
    n = (n + 1) % 7 + 1;
    cout << n << endl;
}