C Program to find Second largest Number in an Array

C Programming Language / Array in C Language

1082

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Program:

/* C Program to find Second largest Number in an Array */
 
#include <stdio.h>
#include <limits.h>
 
int main()
{
	int arr[50], i, Size;
	int first, second;
	
	printf("\n Please Enter the Number of elements in an array  :  ");
	scanf("%d", &Size);
	
	printf("\n Please Enter %d elements of an Array \n", Size);
	for (i = 0; i < Size; i++)
	{
		scanf("%d", &arr[i]);
    }
	 
	first = second = INT_MIN;  
	   
	for (i = 0; i < Size; i++)
	{
		if(arr[i] > first)
		{
			second = first;
			first = arr[i];
		}
		else if(arr[i] > second && arr[i] < first)
		{
			second = arr[i];
		}	
	}
	printf("\n The Largest Number in this Array =  %d", first);
	printf("\n The Second Largest Number in this Array =  %d\n", second);
	
	return 0;
}

Output:

 Please Enter the Number of elements in an array  :  5

 Please Enter 5 elements of an Array
10 90 80 90 80

 The Largest Number in this Array =  90
 The Second Largest Number in this Array =  80
Press any key to continue . . .

Explanation:

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