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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. 	string s = "quick:brown:fox:jumps:over:the:lazy:dog";
  8.     int i = 0;
  9.     for (;;) {
  10.         i = s.find(":", i);
  11.         if (i == string::npos) {
  12.             break;
  13.         }
  14.         s.replace(i, 1, "%%");
  15.     }
  16.     cout << s << endl;
  17. 	return 0;
  18. }
Success #stdin #stdout 0.02s 2856KB
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stdin
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Standard input is empty
stdout
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quick%%brown%%fox%%jumps%%over%%the%%lazy%%dog
https://ideone.com/t81bWx
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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