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  1. #include <iostream>
  2.  
  3. int main() {
  4.  
  5. system("");
  6. return 0;
  7. }
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
prog.cpp: In function ‘int main()’:
prog.cpp:5:11: error: ‘system’ was not declared in this scope
  system("");
           ^
stdout
Standard output is empty