Submission

Score: 100

User: pond4545

Problemset: Sigma Croissant

Language: cpp

Time: 0.002 second

Submitted On: 2025-09-25 14:43:55

#include <iostream>
#include <cmath>
using namespace std;
#define int long long

int32_t main()
{
   int n;
   int sum=0;
   int fact=1;
   cin >> n;
   for(int i = 1; i <= n ; i++)
   {
        for(int j =1; j<=i ;j++)
        {
            fact= fact * j;
        }
        sum+=fact;
        fact=1;
   }
   cout << sum;
    return 0;
}