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main()

{

in a,b,c,d;

printf("\n enter any four numbers");

scanf("%d%d%d%d",&a,&b,&c,&d);

if(a==ba==cb==cb==dc==d)

printf("\n numbers must be different");

else

{

if(a>b&&a>c&&a>b)

X=b>c&&b>d?b;c>d?c:d;

else if(b>c&&b>d)

x=a>c&&a>b?a:c<d?c:d;

else if(c>d)

x=a>b&&a>d?a:b>d?b:d;

else

x=a>b&&a>c?a:b>c?b:c;

printf("\n %d is second max vaalue",x);

{

}

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βˆ™ 11y ago
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βˆ™ 14y ago

I will just write the function - the header stuff is easy.

int largest (int numbers[], int n)

{

int i;

int biggest=numbers[0]; /* First assign the first number to the biggest */

for (i=1; i<n; i++) /* we loop through from the 2nd element to the last */

{

if (numbers[i] > biggest) /* if we find one larger then we make it biggest */

biggest = numbers[i];

}

return biggest; /* Note: this may or may not work, you see biggest is defined ONLY for the function if you try to send it outside of the function it may not work (depending on the compiler). I put this here because it helps explain the program BEST! However, you may need to use a static variable or a global variable. */

}

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βˆ™ 11y ago

#include<stdio.h>

#include<conio.h>

void main()

{

int i, n, a, b, num;

a = b = 0;

clrscr();

printf("Enter the Maximum amount of Numbers :: ");

scanf("%d", &n);

for(i=0; i<n; i++)

{

printf("\nEnter the Number :: ");

scanf("%d", &num);

if (num > a)

{

b = a;

a = num;

}

else if (num > b)

b = num;

}

printf("\n\n Second Highest Number is :: %d",b);

getch();

}

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βˆ™ 13y ago

void main()

{

int i,k;

int a[5];

for(j=0;j<5;j++)

{

a[j]=j;

}

for(i=0;i<1;i++)

{

if(a[i]<a[i+1])

{

k=a[i];

a[i]=a[i+1];

a[i+1]=k;

}

}

printf("%d",a[1]);

}

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βˆ™ 8y ago

In order to find the second largest you first need to find the largest. The following program demonstrates one such method using an array of doubles. An alternative method is to sort the numbers in descending order then look for the first value that is not equal to the first number, however sorting will add an unnecessary and expensive overhead.

#include<stdio.h>

#include<float.h>

const double lowest = -DBL_MAX;

double find_largest (double* a, const unsigned size) {

if (size<1) return lowest;

double largest = a[0];

unsigned i = 0;

while (++i<size) {

if (largest<a[i])

largest = a[i];

}

return largest;

}

double find_second_largest (double* a, const unsigned size) {

if (size<2) return lowest;

const double largest = find_largest (a, size);

double second = lowest;

unsigned i = 0;

while (++i<size) {

if (a[i]<largest && second<a[i])

second = a[i];

}

return second;

}

int main (void) {

double a[10];

a[0] = 0.5;

a[1] = 0.7;

a[2] = 0.1;

a[3] = 0.9;

a[4] = 0.6;

a[5] = 0.4;

a[6] = 0.2;

a[7] = 0.8;

a[8] = 0.3;

a[9] = 0.0;

double x = find_second_largest (a, 10);

if (x==lowest) {

/* error! */

}

printf ("%f is the second largest\n", x);

return 0;

}

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βˆ™ 13y ago

#include<stdio.h>

#include<conio.h>

main()

{

int a[100];

int i,n,slargest,largest,ssmallest,smallest;

printf("enter the number of elements");

scanf("%d",&n);

printf("\nenter the array elements");

for(i=0;i<n;i++)

scanf("%d",&a[i]);

if(a[0]>a[1])

{

largest=a[0];

slargest=a[1];

}

else

{

largest=a[1];

slargest=a[0];

}

for(i=2;i<n;i++)

if(a[i]>largest)

{

slargest=largest;

largest=a[i];

}

else

if(a[i]>slargest)

slargest=a[i];

if(a[0]<a[1])

{

smallest=a[0];

ssmallest=a[1];

}

else

{

smallest=a[1];

ssmallest=a[0];

}

for(i=2;i<n;i++)

if(a[i]<smallest)

{

ssmallest=smallest;

smallest=a[i];

}

else

if(a[i]<ssmallest)

ssmallest=a[i];

printf("\n second largest element=%d",slargest);

printf("\n second smallest element =%d",ssmallest);

getch();

}

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βˆ™ 11y ago

You would use a comparison expression across multiple numbers, keeping track of the largest number and comparing it with each number supplied. To do this with a function, supply the function with an array of numbers as well as the number of elements in an array.

Then loop through the array. Keeping track of which number is largest, compare each element in the array with the largest number. If the element's value is larger than the currently stored number, store that element's number as the current number.

Once the loop is finished, simply return the largest number in the array. If no numbers have been supplied, you can return 0 or -1, assuming they are not expected to be in the array.

Find below a collection of related links containing tutorials and quick references that'll help you out immeasurably with C!

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βˆ™ 11y ago

146..4 is the second largest digit from a no

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Q: C program to find the second highest number from a set of numbers?
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