#include <iostream> using namespace std; int sumV1(int N){ int result = (1+N)*N/2; return result; } int sumV2(int N){ int result = 0; for(int i=0; i<=N ;i++){ result += i; } return result; } int main() { cout << "SumV1 is " << sumV1(100) <<endl; cout << "SumV2 is " << sumV2(100) <<endl; return 0; }