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  • Difference between two elements so that larger element appears after the smaller number in C?

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    #include<stdio.h>
     
    int maxDiff(int a[], int size)
    {     
      int max_diff = a[1] - a[0];
      int i, j;
      for(i = 0; i < size; i++)
      {
        for(j = i+1; j < size; j++)
        {        
          if(a[j] - a[i] > max_diff)   
             max_diff = a[j] - a[i];
        }    
      }          
      return max_diff;
    }    
     
    int main()
    {
      int a[] = {200, 2, 9, 10, 110};
      printf("Maximum difference is %d",  maxDiff(arr, 5));
      getchar();
      return 0;
    }

    Output:

    Maximum difference is 108

    Explanation:

    In above program following procedure is followed:

    • In maxDiff() function difference of first and second element of array is assigned variable max_diff, within the function two loops are used.
    • In outer loop one by one elements of array a[] is traversed.
    • In inner loop  the difference of the traversed element from outer loop with every other element in the array is calculated and compare the difference with the maximum difference calculated till now.

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