C Language 👨‍💻

15. Program to print numbers from n to 1 using Do While loop.

#include<stdio.h>
#include<conio.h>

void main()
{
    int i=1, n;
    clrscr();
    
    printf("Enter n : ");
    scanf("%d", &n);

    i=n;

    do
    {
        printf("%d\t",i);
        i--;
    } while (i >= 1);

    getch();
}

#do_while_loop
@C_Codings

84.5K viewsedited 11:09

C Language 👨‍💻

16. Program to print first n even numbers.

#include<stdio.h>
#include<conio.h>

void main()
{
    int i = 2, n;
    //to print odd numbers set variable i = 1
    clrscr();

    printf("Enter n : ");
    scanf("%d", &n);

    while(i<=n)
    {
        printf("%d\t", i);
        i = i + 2;
    }
    getch();
}

#while_loop
@C_Codings

84.2K viewsedited 11:18

C Language 👨‍💻

17. Program to accept a number and print that number in reverse order.
Ex:- 1024
Output:- 4201

#include<stdio.h>
#include<conio.h>

void main()
{
    int reminder, n;
    clrscr();

    printf("Enter n : ");
    scanf("%d", &n);

    while(n>0)
    {
        reminder=n%10;
        printf("%d", reminder);
        n=n/10;
    }
    getch();
}

#while_loop
@C_Codings

85.9K viewsedited 11:24

C Language 👨‍💻

18. Program to accept a number and print sum of it’s digits.

#include<stdio.h>
#include<conio.h>
void main()
{
    int reminder, sum=0, n;
    clrscr();

    printf("Enter n : ");
    scanf("%d", &n);

    while(n>0)
    {
        reminder = n % 10;
        sum = sum + reminder;
        n = n / 10;
    }
    printf("Sum of digits : %d",sum);
    getch();
}

#while_loop
@C_Codings

85.7K viewsedited 11:28

C Language 👨‍💻

19. Program to take a number from user and check whether it is Armstrong number or not.

#include<stdio.h>
#include<conio.h>

void main()
{
    int i=2, temp, rem, sum=0, n;
    clrscr();

    printf("Enter n : ");
    scanf("%d", &n);
    temp = n;

    while(n>0)
    {
        rem = n%10;
        sum = sum+(rem*rem*rem);
        n = n/10;
    }

    if(temp == sum)
        printf("Entered number is an Armstrong Number");
    else
        printf("Entered number is not an Armstrong Number");

    getch();
}

#while_loop
@C_Codings

87.2K viewsedited 11:37

C Language 👨‍💻

20. Program to take number from user and print table of that number.

#include<stdio.h>
#include<conio.h>

void main()
{
    int i, n;
    clrscr();

    printf("Enter number : ");
    scanf("%d", &n);

    for(i = 1; i <= 10; i++)
        printf("%d × %d = %d\n", n, i, n*i);

    getch();
}

#for_loop
@C_Codings

86.1K viewsedited 11:42

C Language 👨‍💻

21. Pattern 1

•
• •
• • •
• • • •
• • • • •

#include<stdio.h>
#include<conio.h>

void main()
{
    int i, j, n;
    clrscr();

    printf("Enter number :");
    scanf("%d", &n);

    for(i=1; i<=n; i++)
    {
        for(j=1; j<=i; j++)
        {
            printf("• ");
        }
        printf("\n");
    }
    getch();
}

#pattern
@C_Codings

86.5K viewsedited 11:50

C Language 👨‍💻

22. Pattern 2

• • • • •
• • • •
• • •
• •
•

#include<stdio.h>
#include<conio.h>

void main()
{
    int i, j, n;
    clrscr();

    printf("Enter number : ");
    scanf("%d", &n);

    for(i=n; i>=1; i--)
    {
        for(j=1;j<=i;j++)
        {
            printf("• ");
        }
        printf("\n"); 
    }
    getch();
}

#pattern
@C_Codings

85.9K viewsedited 11:52

C Language 👨‍💻

23. Pattern 3

     •
    • •
   • • •
  • • • •
 • • • • •

#include<stdio.h>
#include<conio.h>

void main()
{
    char ch = '*';
    int n,i, j, no_of_spaces = 0, spaceCount;

    printf("Enter number : ");
    scanf("%d", &n);
    printf("\n");
    no_of_spaces = n - 1;

    for (i = 1; i <= n; i++)
    {
        for (spaceCount = no_of_spaces; spaceCount >= 1; spaceCount--)
        {
            printf("  "); 
        }
        for (j = 1; j <= i; j++)
        {
            printf("%2c", ch);
        }
        printf("\n");
        no_of_spaces--;
    }
    getch();
}

#pattern
@C_Codings

85.2K viewsedited 18:34

C Language 👨‍💻

24. Pattern 4

#include<stdio.h>
#include<conio.h>

void main()
{
    int n, i, j;
    printf("Enter number : ");
    scanf("%d", &n);

    for (i = 1; i <= n; i++)
    {
        for (j = 1; j <= i; j++)
        {
            printf("%d ", j);
        }
        printf("\n");
    }
    getch();
}

#pattern
@C_Codings

84.8K viewsedited 18:50

C Language 👨‍💻

25. Pattern 5

#include <stdio.h>
#include<conio.h>

void main()
{
    int i, j, n;
    printf("Enter number : ");
    scanf("%d", &n);
    printf("\n");

    for (i = 1; i <= n; i++)
    {
        for (j = i; j >= 1; j--)
        {
            printf("%d ", j);
        }
        printf("\n");
    }
    getch();
}

#pattern
@C_Codings

85.1K viewsedited 18:54

C Language 👨‍💻

26. Pattern 6

A
B C
D E F
G H I J
K L M N O

#include<stdio.h>
#include<conio.h>

void main()
{
int i, j, n;
clrscr();

printf("Enter number : ");
scanf("%d", &n);
int c = 'A';

for (i = 0; i < n; i++)
{
for (j = 0; j <= i; j++)
{
printf("%c", c);
c = c + 1;
}
printf("\n");
}
getch();
}
#pattern
@C_Codings

85.5K viewsedited 14:25

C Language 👨‍💻

27. Pattern 7

1
1 2 1
1 2 3 2 1
1 2 3 4 3 2 1
1 2 3 4 5 4 3 2 1

#include<stdio.h>
#include<conio.h>

void main()
{
int i, j, n;
clrscr();

printf("Enter number : ");
scanf("%d", &n);

for (i = 1; i <= n; i++)
{
for (j = 1; j <= i; j++)
{
printf("%d", j);
}
for (j = i - 1; j >= 1; j--)
{
printf("%d", j);
}
printf("\n");
}
getch();
}
#pattern
@C_Codings

85.6K viewsedited 14:28

C Language 👨‍💻

28. Pattern 8 (Binary Pattern)

1
0 1
1 0 1
0 1 0 1
1 0 1 0 1

#include<stdio.h>
#include<conio.h>

void main()
{
int i, j;
int count = 1;
clrscr();

for (i = 1; i <= 5; i++)
{
for (j = 1; j <= i; j++)
{
printf("%d", count++ % 2);
if (j == i && i != 5)
printf("\n");
}
if (i % 2 == 0)
count = 1;
else
count = 0;
}
getch();
}
#pattern
@C_Codings

85.7K viewsedited 14:58

C Language 👨‍💻

29. Pattern 9

1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

#include <stdio.h>
#include <conio.h>
void main()
{
int i, j, k, l, n;
clrscr();

printf("Enter number : ");
scanf("%d", &n);
printf("\n");

for (i = n; i >= 1; i--)
{
for (j = 1; j <= i; j++)
printf("%d", j);

printf("\n");
}
getch();
}
#pattern
@C_Codings

85.2K viewsedited 14:59

C Language 👨‍💻

30. Pattern 10

#include <stdio.h>
#include <conio.h>
void main()
{
  int i, j, k;
  clrscr();

  for (i = 1; i <= 5; i++)
  {
    for (j = 5; j >= 1; j--)
    {
      if (j <= i)
      {
        printf("%d", j);
      }
      else
      {
        printf(" ");
      }
    }
    printf("\n");
  }
  getch();
}

#pattern
@C_Codings

85.5K viewsedited 15:17

C Language 👨‍💻

31. Pattern 11

1             1
1 2         2 1
1 2 3     3 2 1
1 2 3 4 4 3 2 1

#include <stdio.h>
#include <conio.h>

void main()
{
int i, j, k;
clrscr();

for (i = 1; i <= 5; i++)
{
for (j = 1; j <= 5; j++)
{
if (j <= i)
{
printf("%d ", j);
}
else
{
printf(" ");
}
}
for (j = 5; j >= 1; j--)
{
if (j <= i)
{
printf("%d ", j);
}
else
{
printf(" ");
}
}
printf("\n");
}
getch();
}
#pattern
@C_Codings

86.3K viewsedited 15:21

C Language 👨‍💻

32. Floyd's triangle

1
2 3
4 5 6
7 8 9 10
11 12 13 14

#include <stdio.h>
#include <conio.h>
void main()
{
int n, i, c, a = 1;
clrscr();

printf("Enter the number of rows : ");
scanf("%d", &n);

for (i = 1; i <= n; i++)
{
for (c = 1; c <= i; c++)
{
printf("%d ", a);
a++;
}
printf("\n");
}
getch();
}
#pattern
@C_Codings

87.4K viewsedited 15:25

C Language 👨‍💻

33. Pyramid

*
* *
* * *
* * * *
* * * * *

#include<stdio.h>
#include<conio.h>
void main()
{
int row, c, n, temp;
clrscr();

printf("Enter the number of rows : ");
scanf("%d", &n);

temp = n;

for (row = 1; row <= n; row++)
{
for (c = 1; c < temp; c++)
printf(" ");

temp--;

for (c = 1; c <= 2 * row - 1; c++)
printf("*");

printf("\n");
}
getch();
}
#pattern
@C_Codings

86.8K viewsedited 15:26

C Language 👨‍💻

34. Pyramid 2

*
*A*
*A*A*
*A*A*A*
*A*A*A*A*

#include<stdio.h>
#include<conio.h>
void main()
{
int n, c, k, space, count = 1;
clrscr();

printf("Enter the number of rows : ");
scanf("%d", &n);

space = n;

for (c = 1; c <= n; c++)
{

for (k = 1; k < space; k++)
printf(" ");

for (k = 1; k <= c; k++)
{
printf("*");

if (c > 1 && count < c)
{
printf("A");
count++;
}
}

printf("\n");
space--;
count = 1;
}
getch();
}
#pattern
@C_Codings

86.7K viewsedited 15:27

C Language 👨‍💻

35. Number Pyramid

1
232
34543
4567654
567898765

#include<stdio.h>
#include<conio.h>
void main()
{
int n, c, d, num = 1, space;
clrscr();

printf("Enter the number of rows : ");
scanf("%d", &n);

space = n - 1;

for (d = 1; d <= n; d++)
{
num = d;

for (c = 1; c <= space; c++)
printf(" ");

space--;

for (c = 1; c <= d; c++)
{
printf("%d", num);
num++;
}

num--;
num--;

for (c = 1; c < d; c++)
{
printf("%d", num);
num--;
}
printf("\n");
}
getch();
}
#pattern
@C_Codings

87.3K viewsedited 15:32

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