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  1. #include <iostream>
  2. #include <cctype>
  3. using namespace std;
  4.  
  5. int main() {
  6.     char a;
  7.     while((a = cin.get()) != EOF){
  8.               if(islower(a)) a = toupper(a);
  9.               else a = tolower(a);
  10.               cout << a;
  11.     }
  12.     return 0;
  13. }
Success #stdin #stdout 0s 4552KB
comments (?)
stdin 
sCHOOL
stdout 
School
https://ideone.com/qU8Hl0
language:
C++14 (clang 8.0)
created:
7 years ago
visibility:
secret

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