Triangles

C Programming Code To Create Pyramid and Structure

Have you tried to print these triangles in C Compiler or may be you have tried but stuck at somewhere.

If you have not yet tried then try it by yourself and then look for suggestions.

Triangles

C Program To display the triangle using *, numbers and character

                                                                                                                                                                   

Write a C Program to print half pyramid as using * as shown in figure below.

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

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

Write a C Program to print half pyramid as using numbers as shown in figure below.

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

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

Write a C Program to print triangle of characters as below

A
B B
C C C
D D D D
E E E E E

#include<stdio.h>
int main()
{
    int i,j;
    char input,temp='A';
    printf("Enter uppercase character you want in triangle at last row: ");
    scanf("%c",&input);
    for(i=1;i<=(input-'A'+1);++i)
    {
        for(j=1;j<=i;++j)
           printf("%c",temp);
        ++temp;
        printf("\n");
    }
    return 0;
}

C Program To Display inverted half pyramid using * and numbers




Write a C Program to print inverted half pyramid using * as shown below.

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

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

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

Write a C Program to print inverted half pyramid as using numbers as shown above.

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

C Program To display the pyramid of * and digits

Write a C program to print pyramid using *.

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

#include <stdio.h>
int main()
{
    int i,space,rows,k=0;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    for(i=1;i<=rows;++i)
    {
        for(space=1;space<=rows-i;++space)
        {
           printf("  ");
        }
        while(k!=2*i-1)
        {
           printf("* ");
           ++k;
        }
        k=0;
        printf("\n");
    }
    return 0;
} 

Write a C program to display reverse pyramid.

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

#include<stdio.h>
int main()
{
    int rows,i,j,space;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=rows;i>=1;--i)
    {
        for(space=0;space<rows-i;++space)
           printf("  ");
        for(j=i;j<=2*i-1;++j)
          printf("* ");
        for(j=0;j<i-1;++j)
            printf("* ");
        printf("\n");
    }
    return 0;
} 

C Program to Draw Pascal's triangle

           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1 

#include<stdio.h>
int main()
{
    int rows,coef=1,space,i,j;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=0;i<rows;i++)
    {
        for(space=1;space<=rows-i;space++)
        printf("  ");
        for(j=0;j<=i;j++)
        {
            if (j==0||i==0)
                coef=1;
            else
               coef=coef*(i-j+1)/j;
            printf("%4d",coef);
        }
        printf("\n");
    }
}

,

C Program to display Floyd's Triangle.

1
2 3
4 5 6
7 8 9 10

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







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