Question

Să se calculeze suma 1+2-3+4+5-6+7+8-9+...+(3*n-2)+(3*n-1)-(3*n). *

Your answer


Submit

Clear form

Va rogggg

Answer 1

Răspuns:

#include <iostream>

using namespace std;

int main()

{

int n, s=0,i;

cin>>n;

for(i=1;i<=n;i++)

s=s+(3*i-2)+(3*i-1)-(3*i);

cout<<s;

}