Question

1.sa se calculeze suma S=1+2+3+...+n in c++ cu n nr natural dat.(cu while)
2. Sa se calculeze suma S=1+3+5+...+n in c++ unde n este nr nat impar dat(CU WHILE)

Answer 1

Răspuns:

1.#include <iostream>

using namespace std;

int n,a,S;

int main()

{cin>>n;

while(a<=n)

  {S=S+a;

  a++;}

cout<<S;

  return 0;

}

2.#include <iostream>

using namespace std;

int n,a,S;

int main()

{cin>>n;

a=1;

while(a<=n)

  {S=S+a;

  a=a+2;}

cout<<S;

  return 0;

}