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  1. #include <stdio.h>
  2.  
  3. main()
  4. {
  5. int data = -10;
  6.  
  7. if ( data < 0 ) {
  8. printf("入力エラー\n");
  9. }
  10. }
Success #stdin #stdout 0.01s 5280KB
stdin
Standard input is empty
stdout
入力エラー