Question

va rog mult repedeeee

Answer 1

#include <iostream>

using namespace std;

int main()

{

int n, s=0, p, i, j; char c;

cout<<"Litera:"; cin>>c;

cout<<"n="; cin>>n;

if(c=='a')

 for(i=1;i<=2*n-1;i=i+2)

  s=s+i*i;

else  

 if(c=='b')

  for(i=1;i<=n;i++){

   p=1;

   for(j=1;j<=i;j++)

    p=p*j;

   s=s+p;

  }

cout<<"Suma este "<<s;

return 0;

}