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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. // The GOAT ^_^
  5. int main() {
  6.   string s;
  7.   cin >> s;
  8.  
  9.   bool capsLock = true;
  10.   for (int i = 1; i < s.size(); i++) {
  11.     if (islower(s[i])) {
  12.       capsLock = false;
  13.       break;
  14.     }
  15.   }
  16.  
  17.   if (capsLock) {
  18.     for (int i = 0; i < s.size(); i++) {
  19.       if (islower(s[i])) {
  20.         s[i] = toupper(s[i]);
  21.       } else {
  22.         s[i] = tolower(s[i]);
  23.       }
  24.     }
  25.   }
  26.  
  27.   cout << s << endl;
  28.  
  29.   return 0;
  30. }
Success #stdin #stdout 0.01s 5332KB
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https://ideone.com/THEgiF
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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