3598 - 求和II

no input needed

2550

Solution C

#include<stdio.h>

int main()
{
    int s=0;
    
    for(int i=1;i<=50;i++){
        s=s+i*2;
    }
    
    printf("%d",s);

    return 0;
}

Solution C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    
    cout<<"2550";
}