#include<iostream>
using namespace std;
int main() {
	int n,k,m;
	cin >> n>>k>>m;
	for(int i=1;i<=k;i++)
	{
		int sum = 0, x, a  ; 
        cin >> a;
        for (int j = 1; j <= a; j++)cin >> x,sum += x;      
        cout << sum % (n + 1) + 1<<endl;
	}
}


------------

#include<iostream>
using namespace std;
int main() {
	int n,k,m;
	cin >> n>>k>>m;
	for(int i=1;i<=k;i++)
	{
		int sum = 0, x, a  ; 
        cin >> a;
        for (int j = 1; j <= a; j++)cin >> x,sum += x;      
        cout << sum % (n + 1) + 1<<endl;
	}
}

论两个代码的区别,第一个对了,第二个错了...毒瘤