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  1. #include<stdlib.h>
  2. #include<stdio.h>
  3.  
  4. /* main() returns int, not void. */
  5. int main() {
  6.  
  7.  
  8.   system("set a=123 & echo %a%");
  9.     system("echo %a% ");
  10.   return 0;
  11. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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%a%
%a%
https://ideone.com/3qKvHb
language:
C++14 (gcc 8.3)
created:
14 days ago
visibility:
public

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