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  1. #include <iostream>
  2. using namespace std;
  3. main()
  4. {
  5. char a;
  6. cin>>a;
  7. if (a<='z'&&a>='a') a-=32;
  8. else if (a<='Z'&&a>='A') a+=32;
  9. cout<<a;
  10. }
Success #stdin #stdout 0.01s 5488KB
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https://ideone.com/qxGoRs
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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