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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int n,i,k,j,temp,a[1425],flag=1;
  5. while(1)
  6. {
  7. scanf("%d",&n);
  8. if(n==0)
  9. return 0;
  10. for(i=0;i<n;i++)
  11. {scanf("%d",&a[i]);
  12. }
  13. for(k=0;k<n-1;k++)
  14. {for(j=0;j<n-1-i;j++)
  15. {if(a[j]>a[j+1])
  16. {temp=a[j];
  17. a[j]=a[j+1];
  18. a[j+1]=temp;
  19. }
  20. }
  21. }
  22. flag=1;
  23. for(i=1;i<n;i++)
  24. {if(a[i]-a[i-1]>200)
  25. {flag=0;}
  26. }
  27. if((1422-a[n-1])*2>200)
  28. flag=0;
  29. if(flag==0)
  30. printf("IMPOSSIBLE\n");
  31. else
  32. printf("POSSIBLE\n");
  33. }	
  34.  
  35. }
  36.  
Success #stdin #stdout 0s 2248KB
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https://ideone.com/E4jOLa
language:
C (gcc 8.3)
created:
9 years ago
visibility:
secret

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