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Question

What is the output of the following program?
#include<stdio.h>
#include<limits.h>
int min_jumps(int *arr, int strt, int end)
{
      int idx;
      if(strt == end)
 	 return 0;
      if(arr[strt] == 0) // jump cannot be made
	 return INT_MAX;
      int min = INT_MAX;
      for(idx = 1; idx <= arr[strt] && strt + idx <= end; idx++)
      {
	   int jumps = min_jumps(arr, strt + idx, end) + 1;
	   if(jumps < min)
	     min  = jumps;
      }
      return min;
}
int main()
{
      int arr[] ={1, 2, 3, 4, 5, 4, 3, 2, 1},len = 9;
      int ans = min_jumps(arr, 0, len-1);
      printf("%d\n",ans);
      return 0;
}

a.

4

b.

5

c.

6

d.

7

Answer: (a).4

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