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  1. #include <stdio.h>
  2. int func (int m){
  3. if(m>0)
  4. {
  5. return m;
  6. }
  7. else
  8. {
  9. return -m;
  10. }
  11. }
  12.  
  13.  
  14. int main(void) {
  15. int n, m = -3;
  16. n = func(m);
  17. printf("%dの絶対値は%d\n", m,n);
  18. return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5320KB
stdin
Standard input is empty
stdout
-3の絶対値は3