In this HackerRank Input and Output problem in c++ programming language, you need to Read 3 numbers from stdin and print their sum to stdout.


HackerRank Input and Output solution in c++ programming


HackerRank Input and Output problem solution in c++ programming.

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {

    int sum = 0;
    int x, y, z;

    cin >> x >> y >> z;
    sum = x + y + z;
    cout << sum << endl;

    return 0;
}


Second solution

#include <iostream>
using namespace std;

int main() {
    int a;
    int b;
    int c;
    cin >> a >> b >> c;
    
    cout << a + b + c << endl;
    
    return 0;
}


Third solution

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */  
     int i = 0;
    int sum = 0;
    
    while (cin >> i) {
        sum += i;
    }
    
    cout << sum << endl; 
    return 0;
}