Input and Output Hackerrank Solution CPP If You want Explanation Watch Video: Sample Input 1 2 7 Sample Output 10 Code: #include < cmath > #include < cstdio > #include < vector > #include < iostream > #include < algorithm > using namespace std; int main() { int a,b,c; cin>>a>>b>>c; int sum = 0; sum = sum + a+ b+c; cout<<sum; return 0 ; }