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  1. #include <stdio.h>
  2. int func (int n){
  3. return (n<0)? -n:n;
  4. }
  5.  
  6.  
  7. int main(void) {
  8. int n, m = -3;
  9. n = func(m);
  10. printf("%dの絶対値は%d\n", m,n);
  11. return 0;
  12. }
  13.  
Success #stdin #stdout 0s 5320KB
stdin
Standard input is empty
stdout
-3の絶対値は3