2050热身赛 1001 && 1004

#include <bits/stdc++.h>
using namespace std;
int a[15];
int b[15];
int main()
{
    int t,n,m,y;
    cin>>t;
    while(t--)
    {
        float nn = 0;
        float mm = 0;
        cin>>n>>m>>y;
        for(int i = 0;i < n;i++)
        {
            cin>>a[i];
            nn += (float)a[i]/n;
        }
        for(int i = 0;i < m;i++)
        {
            cin>>b[i];
            mm += (float)b[i]/m;
        }
        float ans = (float)m/n*mm+nn;
        if(ans <= y)
            cout<<"Go"<<endl;
        else
            cout<<"Wait"<<endl;
    }
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
long long int mod = 1000000007;
int main()
{
    int t,n;
    cin>>t;
    int ans;
    while(t--)
    {
        cin>>n;
        ans = (n + 1)*n/2 - 1;
        printf("%d\n",ans%mod);
    }
    return 0;
}