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  1. #include <iostream>
  2. #include <string>
  3. #include <cctype>
  4. using namespace std;
  5.  
  6. int main() {
  7.    string passCode;
  8.  
  9.    passCode = "1 ";
  10.  
  11.    if (isspace(passCode.at(0))){
  12.       passCode.replace(0, 1, "_");
  13.    }
  14.    if (isspace(passCode.at(1))){
  15.       passCode.replace(1, 1, "_");
  16.    }
  17.  
  18.    cout << passCode << endl;
  19.    return 0;
  20. }
  21.  
Success #stdin #stdout 0s 15240KB
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Standard input is empty
stdout
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1_
https://ideone.com/bMzYFv
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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