How to find second largest value from array

[Jaheel]

Hi friends,

I am beginner is programming field,May be because of that I have troubles while writing complex and large programs. One of them is below.

I have to write the program which will display the second highest value from the array values.But there is also one condition that the this number should not be negative value.



Can you able to help me to code this program.

[Reegan]

Hi,

Good thing for you is that I have coded the program to print second highest value from the all values from the array. see below:

#include<stdio.h>
void main()
{
int i,j,n,a[20],first_max,second_max;
printf("Enter how many numbers you want to enter");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("Enter only a positive number");
scanf("%d",&a[i]);
}

if(a[0]>a[1])
first_max=a[0];
second_max=a[1];
else
first_max=a[1];
second_max=a[0];

for(j=2;j<n;j++)
if(a[j]>second_max)
if(a[j]>first_max)
{
first_max=a[j];
second_max=first_max;
}
else
second_max=a[j];
printf("The second largest number is %d", second_max);
}

[opaper]

Something below can help you. I used sorting method to find the 2nd highest number.

Code:

public static void main(String[] args) {
int array[]={13,12,34,56,73,21,232,234,235,240};
int max ,secndmax;
max = secndmax= array[0];
System.out.println("Initial value is "+ secndmax);
for (int i=1;i<array.length;i++){
if (array[i]>max ){
secndmax=max;
max=array[i];
}else if(array[i]>secndmax){
secndmax = array[i];
}
}

System.out.println("Second Max element is "+ secndmax);

}

[MindSpace]

I am not giving you the all the answer. But according to me you have to use 'if loop' to verify condition inside 'for loop'.

For reference take look on the below loop:

max = second_max= array[0];
for (i=0;i,length;i++)
{
if (array[i]>max)
{
2ndmax=max;
max=array[i];
}
}
return second_max