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  1. #include <stdio.h>
  2. //練習問題A
  3.  
  4. int func (int n){
  5.  
  6. if(n<0){
  7. return -n;
  8. }
  9. else{
  10. return n;
  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