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  1. #include <stdio.h>
  2.  
  3. int fib(int n) {
  4. if(n == 0)
  5. return 0;
  6. else if(n == 1)
  7. return 1;
  8. else
  9. return fib(n - 1) + fib(n - 2);
  10. }
  11.  
  12. int main(void) {
  13. int n;
  14. scanf("%d", &n);
  15. printf("%d", fib(n));
  16. return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5296KB
stdin
10
stdout
55