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  1. #include"stdio.h"
  2. void rec(int n)
  3. { 
  4. if(n>0)
  5. { rec(--n); 
  6. printf("%d",n); 
  7. rec(--n);
  8. } else 
  9. printf("\t");
  10. }
  11. int main()
  12. { 
  13. int a=3; 
  14. rec(a);
  15.  return 0;
  16. } 
  17.  
Success #stdin #stdout 0s 4320KB
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stdin
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Standard input is empty
stdout
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	0	1	2	0
https://ideone.com/QsBi0k
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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