For Loop – Pattern Programming – Theory and Programs [Learn to code]

What is pattern programming? Learn how to create different patterns using for loop.

• 034. Write a program to print following outputs in C language

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

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=1;i<=n;i++)
  	{
  		for(j=1;j<=n;j++)
  			{
  			 printf("*");
  			}
  		printf("\n");
  	}
  	getch();
  }
  
  
  
  

• 035. Write a program to print following outputs in C language

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

   
  #include<stdio.h>
  #include<conio.h>  
  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();
  }
  
  
  

• 036. Write a program to print following outputs in C language

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

  #include<stdio.h> 
  #include<conio.h>  
  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();
  }
  
  
  

• 037. Write a program to print following outputs in C language

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

  #include<stdio.h> 
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=1;i<=n;i++)
  	{
  		for(k=1;k<i;k++)
  			{
  			 printf(" ");
  			}
  		for(j=i;j<=n;j++)
  			{
  			 printf("*");
  			}
  		printf("\n");
  	}
  	getch();
  }

• 038. Write a program to print following outputs in C language

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

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=n;i>=1;i--)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("*");
  			}
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 039. Write a program to print following outputs in C language

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

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=1;i<=n;i++)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("*");
  			}
  		for(j=2;j<=i;j++)
  			{
  			 printf("*");
  			}
  
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 040. Write a program to print following outputs in C language

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

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=n;i>=1;i--)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("*");
  			}
  		for(j=2;j<=i;j++)
  			{
  			 printf("*");
  	}
  
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 041. Write a program to print following outputs in C language

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

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  
  	for(i=1;i<=n;i++)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("*");
  			}
  		for(j=2;j<=i;j++)
  			{
  			 printf("*");
  			}
  
  		printf("\n");
  	}
  
  	for(i=n-1;i>=1;i--)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("*");
  			}
  		for(j=2;j<=i;j++)
  			{
  			 printf("*");
  			}
  
  		printf("\n");
  }
  	getch();
  }
  
  
  

• 042. Write a program to print following outputs in C language

  1
  12
  123
  1234
  

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=1;i<=n;i++)
  	{
  		for(j=1;j<=i;j++)
  			printf("%d",j);			
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 043. Write a program to print following outputs in C language

  1
  22
  333
  4444
  

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	for(i=1;i<=n;i++)
  	{
  		for(j=1;j<=i;j++)
  			printf("%d",i);
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 044. Write a program to print following outputs in C language

     A
    BBB
   CCCCC
  DDDDDDD
  

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,k,n;
  	clrscr();
  	printf("Enter number : ");
  	scanf("%d",&n);
  	//ASCII Code for 'A' is 65
  	for(i=1;i<=n;i++)
  	{
  		for(k=1;k<=(n-i);k++)
  			{
  			 printf(" ");
  			}
  		for(j=1;j<=i;j++)
  			{
  			 printf("%c",64+i);
  			}
  		for(j=2;j<=i;j++)
  			{
  			 printf("%c",64+i);
  			}
  
  		printf("\n");
  	}
  	getch();
  }
  
  
  

• 045. Write a program to print following outputs in C language

  ABCDEEDCBA
  ABCD  DCBA
  ABC    CBA
  AB      BA
  A        A
  

  #include<stdio.h>
  #include<conio.h>  
  main()
  {
    int i,n,j,k;
    clrscr();
    printf("Enter number........");
    scanf("%d",&n);
    for(i=n-1;i>=0;i--)
    {
  		for(j=0;j<=i;j++)
  			printf("%c",65+j);
  		for(k=1;k<(n-i);k++)
  			printf("  ");
  		for(j=i;j>=0;j--)
  			printf("%c",65+j);
  	printf("\n");
    }
    getch();
  }
  
  
  
  

• 046. Write a program to print following outputs in C language

  1
  11
  121
  1231
  12341
  123451
  

  
  #include<stdio.h>
  #include<conio.h>  
  main()
  {
  	int i,j,n;
  	clrscr();
  	printf("Enter number...");
  	scanf("%d",&n);
  	for(i=0;i<=n;i++)
  	{
  		for(j=1;j<=i;j++)
  		{
  			printf("%d",j);
  		}
  		printf("1\n");
  	}
  	getch();
  }