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  1. #include <stdio.h>
  2.  
  3. int tansaku(int a[], int x) {
  4. 	int i=0, idx=-1;
  5. 	for(i=0; a[i]!=-1; i++) {
  6. 		if(a[i]==x) {
  7. 			idx = i; break;
  8. 		}
  9. 	}
  10. 	return idx;
  11. }
  12.  
  13. int main(void) {
  14. 	int a[100], i, n, x, ret;
  15. 	scanf("%d %d", &n, &x);
  16. 	for(i=0; i<n; i++) scanf("%d", &a[i]);
  17. 	ret = tansaku(a,x);
  18. 	printf("x：a[%d]\n", ret);
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin
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12 3
2 3 5 8 3 3 2 4 -1 2 3 5
stdout
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x：a[1]
https://ideone.com/KFNI1x
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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