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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7.     string a, b;
  8.     cin>>a;
  9.     cin>>b;
  10.  
  11.     cout<<a.size()<<" "<<b.size()<<endl;
  12.     cout<<a+b<<endl;
  13.     char c=a[0];
  14.     a[0]=b[0];
  15.     b[0]=c;
  16.     cout<<a<<" "<<b;
  17.  
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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abcd
ef
stdout
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4 2
abcdef
ebcd af
https://ideone.com/5mbHuf
language:
C++14 (gcc 8.3)
created:
1 hour ago
visibility:
public

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