Input and Output

Problem :

Objective :

In this challenge, we practice reading input from stdin and printing output to stdout.

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In C++, you can read a single whitespace-separated token of input using cin, and print output to stdout using cout. For example, let's say we declare the following variables:

string s;
int n;

and we want to use cin to read the input "High 5" from stdin. We can do this with the following code:

cin >> s >> n;

This reads the first word ("High") from stdin and saves it as string , then reads the second word ("") from stdin and saves it as integer . If we want to print these values to stdout, separated by a space, we write the following code:

cout << s << " " << n << endl;

This code prints the contents of string , a single space (), then the integer . We end our line of output with a newline using endl. This results in the following output:

High 5

Task
Read  numbers from stdin and print their sum to stdout.

Input Format

One line that contains  space-separated integers: , , and .

Constraints

Output Format

Print the sum of the three numbers on a single line.

Sample Input

1 2 7

Sample Output

10

Explanation

The sum of the three numbers is .

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 a;

    int b;

    int c;

    cin >> a >> b >> c;

    cout << a + b + c << endl;

    return 0;

}