without arrays

C Program To Find First and Second Biggest in N Numbers, without using Arrays, using For Loop

Write a C program to find first and second biggest numbers in a list of N numbers entered by the user, without using arrays and without sorting the list and by using for loop.

Video Tutorial: C Program To Find First and Second Biggest in N Numbers, without using Arrays, using For Loop

[youtube https://www.youtube.com/watch?v=EtdVsh9XhS8]

YouTube Link: https://www.youtube.com/watch?v=EtdVsh9XhS8 [Watch the Video In Full Screen.]

Source Code: C Program To Find First and Second Biggest in N Numbers, without using Arrays, using For Loop

#include<stdio.h>

int main()
{
    int limit, num, count, fbig = 0, sbig = 0;

    printf("Enter the limit\n");
    scanf("%d", &limit);

    printf("Enter %d positive numbers\n", limit);

    for(count = 1; count <= limit; count++)
    {
        scanf("%d", &num);

        if(num > fbig)
        {
            sbig = fbig;
            fbig = num;
        }

        if(num > sbig && num < fbig)
        {
            sbig = num;
        }
    }

    printf("First big = %d\nSecond Big = %d\n", fbig, sbig);

    return 0;
}

Output 1:
Enter the limit
5
Enter 5 positive numbers
1
9
5
3
8
First big = 9
Second Big = 8

Output 2:
Enter the limit
8
Enter 8 positive numbers
1
5
9
3
7
8
6
10
First big = 10
Second Big = 9

Logic To Find First and Second Biggest Number in N Numbers, without using Arrays

First we ask the user to enter length of numbers list. If user enters limit value as 5, then we ask the user to enter 5 numbers. Once the user enters limit value, we iterate the for loop until loop counter variable count is less than or equal to limit. For each iteration of for loop we ask the user to enter a positive integer number. We check if the new number entered by the user is greater than fbig. If true, we swap the value of fbig to sbig and value of num to fbig.

Next we check if the user entered number is greater than sbig and less than fbig, if true, we assign the value of num to sbig.

Once control exits for loop, inside fbig we will have biggest number from the list of numbers entered by the user and sbig will have the second biggest number from the list of numbers entered by the user.

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C Program To Find Biggest of N Numbers, without using Arrays, using For Loop

Write a C program to find biggest of N numbers without using Arrays and using for loop.

Video Tutorial: C Program To Find Biggest of N Numbers, without using Arrays, using For Loop

[youtube https://www.youtube.com/watch?v=4B9i0l46g7I]

YouTube Link: https://www.youtube.com/watch?v=4B9i0l46g7I [Watch the Video In Full Screen.]

Logic To Find Biggest Number of N numbers, without using Arrays

We ask the user to enter the limit. i.e., the length of the list of numbers. For Example, if user enters limit value as 5, then we accept 5 numbers from the user and then find the biggest and output that number on to the console window.

First we ask the user to enter the limit. If user enters limit value as 5, we iterate the for loop 5 times i.e., until value of count is less than or equal to limit.

We check if its the first iteration of for loop. If true, we assign the first user entered number to variable big.

Inside the for loop, for each iteration we ask the user to enter a number. Next we check if that user entered number is greater than the value present in variable big. If the new number entered by the user is greater than value present in variable big, then we assign the new number entered by the user to the variable big. We keep doing this for each number entered by the user.

Source Code: C Program To Find Biggest of N Numbers, without using Arrays, using For Loop

#include<stdio.h>

int main()
{
    int limit, num, count, big;

    printf("Enter the limit\n");
    scanf("%d", &limit);

    printf("Enter %d numbers\n", limit);
    for(count = 1; count <= limit; count++)
    {
        scanf("%d", &num);

        if(num > big || count == 1)
        {
            big = num;
        }
    }

    printf("Biggest number is %d\n", big);

    return 0;
}

Output 1:
Enter the limit
5
Enter 5 numbers
1
9
3
7
4
Biggest number is 9

Output 2:
Enter the limit
6
Enter 6 numbers
-2
-5
-6
-9
-1
-4
Biggest number is -1

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For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert

Find First and Second Biggest in N Numbers, without using Arrays: C Program

Write a C program to find first and second biggest numbers in list of N numbers without using arrays and without sorting the list and by using while loop.

Source Code: Find First and Second Biggest in N Numbers, without using Arrays: C Program

 
#include<stdio.h>

int main()
{
    int limit, num, fbig = 0, sbig = 0;

    printf("Enter the limit\n");
    scanf("%d", &limit);

    printf("Enter %d positive numbers\n", limit);
 

    while(limit > 0)
    {
        scanf("%d", &num);

        if(num > fbig)
        {
            sbig = fbig;
            fbig = num;
        }
        if(num > sbig && num < fbig)
        {
            sbig = num;
        }

        limit--;
    }

    printf("First Big is %d\n", fbig);
    printf("Second Big is %d\n", sbig);

    return 0;
}

Output 1:
Enter the limit
5
Enter 5 numbers
1
2
3
4
5
First Big is 5
Second Big is 4

Output 2:
Enter the limit
5
Enter 5 numbers
5
4
3
2
1
First Big is 5
Second Big is 4

Output 3:
Enter the limit
5
Enter 5 numbers
1
4
3
5
2
First Big is 5
Second Big is 4

Output 4:
Enter the limit
8
Enter 8 numbers
1
5
9
3
7
4
6
8
First Big is 9
Second Big is 8

Find First and Second Biggest in N Numbers, without using Arrays: C Program

[youtube https://www.youtube.com/watch?v=gs4YT-Qcw6k]

YouTube Link: https://www.youtube.com/watch?v=gs4YT-Qcw6k [Watch the Video In Full Screen.]

Logic To Find First and Second Biggest Number in N Numbers, without using Arrays

First we ask the user to enter length of numbers list. If user enters limit value as 5, then we ask the user to enter 5 numbers. Once the user enters limit value, we iterate the while loop until limit value is 0. For each iteration of while loop we ask the user to enter a integer number. We check if the new number entered by the user is greater than fbig. If true, we swap the value of fbig to sbig and value of num to fbig. If the new number entered by the user is not greater than fbig, then we check if its greater than sbig. If true, we transfer the value of num to sbig.

Once the value of limit is 0, control exits the while loop, and inside fbig we have first biggest number from the list of numbers entered by the user and sbig will have the second biggest number from the list of numbers entered by the user.

For list of all c programming interviews / viva question and answers visit: C Programming Interview / Viva Q&A List

For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert

Find Biggest of N Numbers, without using Arrays: C Program

Write a C program to find biggest of N numbers without using Arrays and using while loop.

Related Read:
while loop in C programming

Logic To Find Biggest Number, without using Arrays

First we ask the user to enter the limit. If user enters limit value as 5, we iterate the while loop 5 times i.e., until value of limit is 0. Inside the while loop, for each iteration we ask the user to enter a number. Next we check if that user entered number is greater than the value present in variable big. If the new number entered by the user is greater than value present in variable big, then we copy assign the new number entered by the user to the variable big. We keep doing this for each number entered by the user. Simultaneously we keep decrementing the value of variable limit by one for each iteration of while loop. Once limit is 0, control exits the while loop and we print the value present inside the variable big.

Source Code: Find Biggest of N Numbers, without using Arrays: C Program

 
#include<stdio.h>

int main()
{
    int limit, num, big = 0;

    printf("Enter the limit\n");
    scanf("%d", &limit);

    printf("Enter %d numbers\n", limit);

    scanf("%d", &num);
    big = num;
    limit = limit - 1;

    while(limit > 0)
    {
        scanf("%d", &num);
        if(num > big)
        {
            big = num;
        }
        limit--;
    }

    printf("Biggest number is %d\n", big);

    return 0;
}

Output 1:
Enter the limit
5
Enter 5 numbers
1
2
3
4
5
Biggest number is 5

Output 2:
Enter the limit
5
Enter 5 numbers
5
4
3
2
1
Biggest number is 5

Output 3:
Enter the limit
5
Enter 5 numbers
1
2
5
3
4
Biggest number is 5

Output 4:
Enter the limit
10
Enter 10 numbers
1
5
9
3
7
5
6
14
1
1
Biggest number is 14

Find Biggest of N Numbers, without using Arrays: C Program

[youtube https://www.youtube.com/watch?v=Cx4-egvgSQs]

YouTube Link: https://www.youtube.com/watch?v=Cx4-egvgSQs [Watch the Video In Full Screen.]

For list of all c programming interviews / viva question and answers visit: C Programming Interview / Viva Q&A List

For full C programming language free video tutorial list visit:C Programming: Beginner To Advance To Expert