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Most Asked Pattern Programs in C

 

Pattern Programs in C


 


Source Code Example : 1
int main()
{
 int i,j,a;
  printf("\nEnter the value:");
  scanf("%d",&a);
  for(i=1;i<=a;i++)
  {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf("%d",i);
    }
  }
  return 0;
}


Output
Enter the value:5
1
22
333
4444
55555


Source Code Example : 2
#include<stdio.h>
int main()
{
 int i,j,a;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf("%d",j);
    }
 }
 return 0;
}


Output
Enter the value:5
1
12
123
1234
12345



Source Code Example : 3
#include<stdio.h>
int main()
{
 int i,j,a,b=1;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf(" %d",b);
      b++;
    }
 }
 return 0;
}


Output
Enter the value:5
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15


Source Code Example : 4
#include<stdio.h>
int main()
{
 int i,j,a;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf("%d",(i-j+1));
    }
 }
 return 0;
}
Output
Enter the value:5
1
21
321
4321
54321


Source Code Example :5
#include<stdio.h>
int main()
{
 int i,j,a;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
   printf("\n");
   for(j=1;j<=(a-i);j++)
   {
     printf(" ");
   }
   for(j=1;j<=i;j++)
   {
    printf("%d",j);
   }
 }
 return 0;
}
Output
Enter the value:5
    1    
   12
  123
1234
12345


Source Code Example :6
#include<stdio.h>
int main()
{
 int i,j,a;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
     printf("\n");
     for(j=a-i+1;j>0;j--)
     {
       printf("%d",j);
     }
 }
 return 0;
}
Output
Enter the value:5
54321
4321
321
21
1
 


 
Source Code Example : 7
#include<stdio.h>
int main()
{
 int i,j,a;
 printf("\nEnter the value:");
 scanf("%d",&a);
 for(i=1;i<=a;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf(" ");
    }
    for(j=1;j<=(a-i+1);j++)
    {
      printf("%d",j);
    }
 }
 return 0;
}
 
Output
Enter the value:5
12345
1234
  123
   12
    1


 
Source Code Example : 8
#include<stdio.h>
int main()
{
 int i,j,n;
 printf("\nEnter the value :");
 scanf("%d",&n);
 for(i=1;i<=n;i++)
 {
    printf("\n");
    for(j=1;j<=(n-i);j++)
    {
        printf("  ");
    }
    for(j=1;j<=i;j++)
    {
        printf(" %d",j);
    }
    for(j=1;j<i;j++)
    {
        printf(" %d",(i-j));
    }
 }
 for(i=1;i<=n;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf("  ");
    }
    for(j=1;j<(n-i);j++)
    {
       printf(" %d",j);
    }
    for(j=(n-i);j>0;j--)
    {
       printf(" %d",j);
    }
 }
 return 0;
}


Output
Enter the value: 5
        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
  1 2 3 4 3 2 1
    1 2 3 2 1
      1 2 1
        1


Source Code Example :10
#include<stdio.h>
int main()
{
 int i,j,n;
 printf("\nEnter the value:");
 scanf("%d",&n);
 for(i=0;i<n;i++)
 {
    printf("\n");
    for(j=n-i;j<=n;j++)
    {
      printf("%d",j);
    }
 }
 return 0;
}

Output
Enter the value:5
5
45
345
2345
12345

#include<stdio.h>
int main()
{
 int i,j,n;
 printf("\nEnter the value:");
 scanf("%d",&n);
 for(i=1;i<=n;i++)
 {
    printf("\n");
    for(j=i;j<=n;j++)
    {
      printf("%d",j);
    }
 }
 return 0;
}     

Output
Enter the value:5
12345
2345
345
45
5


Source Code Example :12
#include<stdio.h>
int main()
{
 int i,j,n;
 printf("\nEnter the value:");
 scanf("%d",&n);
 for(i=1;i<=n;i++)
 {
    printf("\n");
    for(j=1;j<=i;j++)
    {
      printf(" ");
    }
    for(j=n;j>=i;j--)
    {
      printf("%d",j);
    }
 }
 return 0;
}

Output
Enter the value:5
54321
5432
  543
   54
    5
Source Code Example : 13
#include<stdio.h>
int main()
{
 int i,j,n;
 printf("\nEnter the value:");
 scanf("%d",&n);
 for(i=1;i<=n;i++)
 {
    printf("\n");
   
    for(j=1;j<=n-i;j++)
    {
       printf("  ");
    }
    for(j=n;j>n-i;j--)
    {
       printf(" %d",j);
    }
    for(j=n-i+2;j<n+1;j++)
    {
       printf(" %d",j);
    }
 }
 for(i=1;i<=n;i++)
 {
    printf("\n");
 
    for(j=1;j<=i;j++)
    {
       printf("  ");
    }
    for(j=n;j>i;j--)
    {
       printf(" %d",j);
    }
    for(j=i+2;j<=n;j++)
    {
       printf(" %d",j);
    }
 
 }
 return 0;
}

Output
Enter the value:5
        5
      5 4 5
    5 4 3 4 5
  5 4 3 2 3 4 5
5 4 3 2 1 2 3 4 5
  5 4 3 2 3 4 5
    5 4 3 4 5
      5 4 5
        5


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