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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. class Solution {
  6. public:
  7. string defangIPaddr(string address) {
  8. for(string::size_type i = 0; i < address.size(); ++i){
  9. if(address[i] == '.'){
  10. address.replace(i, 1, "[.]");
  11. i += 2;
  12. }
  13. }
  14. return address;
  15. }
  16. };
  17.  
  18. int main()
  19. {
  20. Solution s;
  21. cout << s.defangIPaddr("127.0.0.1");
  22. return 0;
  23. }
Success #stdin #stdout 0s 4696KB
stdin
Standard input is empty
stdout
127[.]0[.]0[.]1