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  1. #include <stdio.h>
  2.  
  3. int func(int arr[], int n)
  4. {
  5.     if (n == 1)
  6.         return 0;
  7.     if (arr[0] >= arr[1])
  8.         return 0;
  9.     if (arr[n - 1] >= arr[n - 2])
  10.         return n - 1;
  11.  
  12.     for (int i = 1; i < n - 1; i++) {
  13.         if (arr[i] >= arr[i - 1] && arr[i] >= arr[i + 1])
  14.             return i;
  15.     }
  16.     return -1;
  17. }
  18.  
  19. int main()
  20. {
  21.     int arr[] = { 1, 3, 20, 4, 1, 0 };
  22.     int n = sizeof(arr) / sizeof(arr[0]);
  23.     printf("Value is %d", func(arr, n));
  24.     return 0;
  25. }
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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Value is 2
https://ideone.com/Gso5K3
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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