Algorithm
Problem Name:
In this HackerRank Functions in C++ programming problem solution,
Objective
In this challenge, we practice reading input from stdin and printing output to stdout.
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 s, then reads the second word ("5") from stdin and saves it as integer n . 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 s, a single space (" "), then the integer n. We end our line of output with a newline using endl. This results in the following output:
High 5
Task
Read 3 umbers from stdin and print their sum to stdout.
Input Format
One line that contains 3 pace-separated integers: a,b and c.
Constraints
- 1 <= a,b,c <= 1000
Output Format
Print the sum of the three numbers on a single line.
Sample Input
1 2 7
Sample Output
10
Code Examples
#1 Code Example with C++ Programming
Code -
C++ Programming
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int main(void)
{
int a, b, c;
cin >> a >> b >> c;
cout << a + b + c << endl;
return 0;
}
Input
Output