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  1. #include <stdio.h>
  2. int func(int n)
  3. {
  4. if(n<0) return -n;
  5. if(n>=0) return n;
  6. }
  7.  
  8.  
  9. int main(void) {
  10. int n, m = -3;
  11. n = func(m);
  12. printf("%dの絶対値は%d\n", m,n);
  13. return 0;
  14. }
  15.  
Success #stdin #stdout 0s 5288KB
stdin
Standard input is empty
stdout
-3の絶対値は3