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  1. // reverse関数
  2.  
  3. #include <stdio.h>
  4. #include <stdlib.h>
  5.  
  6. void printA(int a[], int n){
  7. 	//ここを書く
  8. 	 int i;
  9.     for(i = 0; i < n; i++){
  10.         printf("%d ", a[i]);
  11.     }
  12.     printf("\n");
  13. }
  14.  
  15. void swap(int* a, int* b){
  16.     //ここを書く
  17.     int tmp;
  18.     tmp = *a;
  19.     *a = *b;
  20.     *b = tmp;
  21. }
  22.  
  23.  
  24. void reverse(int a[], int n){
  25.     //ここを書く
  26.      int i;
  27.     for(i = 0; i < n / 2; i++){
  28.         swap(&a[i], &a[n - 1 - i]);
  29.     }
  30. }
  31.  
  32. int main(void){
  33.     int n,i;
  34.     int *v;
  35.     scanf("%d",&n);
  36.     v = (int*)malloc(sizeof(int)*n);
  37.     if(v==NULL){
  38.         printf("ERROR\n");
  39.         return -1;
  40.     }
  41.     for(i=0;i<n;i++){
  42.         scanf("%d",&v[i]);
  43.     }
  44.     reverse(v,n);
  45.     printA(v,n);
  46.     free(v);
  47.     return 0;
  48. }
  49.  
Success #stdin #stdout 0s 5292KB
comments (?)
stdin
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8
21 55 5 13 8 2 34 3
stdout
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3 34 2 8 13 5 55 21
https://ideone.com/kbfj5g
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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