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  1. #include<stdio.h>
  2.  
  3. int main()
  4. {
  5. 	int n,m,i;
  6. 	scanf("%d %d",&n,&m);
  7. 	int cmd[m],num[n];
  8. 	for(i=0;i<m;i++)
  9. 		scanf("%d",&cmd[i]);
  10. 	for(i=0;i<n;i++)
  11. 		num[i]=i+1;
  12.  
  13. 	for(i=m-1;i>=0;i--)
  14. 		if(num[cmd[i]-1]!=0)
  15. 			printf("%d\n",cmd[i]),num[cmd[i]-1]=0;
  16.  
  17. 	for(i=0;i<n;i++)
  18. 		if(num[i]!=0)
  19. 			printf("%d\n",num[i]);
  20.  
  21. 	return 0;
  22. }
Runtime error #stdin #stdout 0s 12216KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/uuOido
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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