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  1. #include <stdio.h>
  2. #define abs(x) x > 0 ? x : -x
  3.  
  4. int main(void) {
  5. printf("%d\n", abs(abs(3 - 5)));
  6. return 0;
  7. }
  8.  
Success #stdin #stdout 0s 10320KB
stdin
Standard input is empty
stdout
-8