fork download
copy 
  1. #include <string>
  2. #include <iostream>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     string a = "Hello world!";
  9.     int x;
  10.     std:cin>>x;
  11.     a.replace(0, 1, std::to_string(x));
  12.     cout << a;
  13. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin
copy 
123
stdout
copy 
123ello world!
https://ideone.com/XYGDtN
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!