Create InputAndOutputHR.cpp

InputAndOutputHR.cpp

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+/*
+Read  numbers from stdin and print their sum to stdout.
+
+Note: If you plan on completing this challenge in C instead of C++, you'll need to use format specifiers with printf and scanf.
+
+Input Format
+
+A single line containing  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() {
+    int a,b,c;
+    /* Enter your code here. Read input from STDIN. Print output to STDOUT */ 
+    cin>>a>>b>>c;
+    cout<<a+b+c;  
+    return 0;
+}