• On September 7, 2024
• By Karmehavannan
• 0 Comment
• Categories: Number pattern, pyramid triangle
• Tags: C pattern, flow of control, Pattern

C program to Inverted pyramid number pattern

C program to Inverted pyramid number pattern

In this tutorial, we will learn about C program to Inverted pyramid number pattern

This program displays various different number Pyramid pattern using nested for loop in C programming language

program 1

Code to inverted pyramid pattern 1

Program 1

#include 
#include 

int main()
{
    int i,j,rows,space=0;
printf("Enter the number of rows");
scanf("%d",&rows);//taking numer of rows from user

    for(i=rows; i>=1; i--){   for each row
            //outer for loop
        for(j=1; j<=space; j++)//print space at the begining
        printf(" ");

         for(j=1; j<=i; j++)//print right side of pyramid
        printf("%d",j);

         for(j=i-1; j>=1; j--)//print right side of pyramid
        printf("%d",j);
     printf("\n");
    space++;
    }
  getch();
    return 0;
}

When the above code is executed, it produces the following results:

1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1
   1 2 3 4 5 6 7 8 7 6 5 4 3 2 1
      1 2 3 4 5 6 7 6 5 4 3 2 1
         1 2 3 4 5 6 5 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

program 2

Code to inverted pyramid pattern 1

Program

#include 
#include 

int main()
{
    int i,j,k;
    int rows,count=1,num;
    printf("Enter the number of rows you want\n");
    scanf("%d",&rows);
    count=1;
    num=1+(rows-1)*2;
    for(i=1; i<=rows; ++i){//outer for loop,(parent)
        for(j=1; j<=count; ++j){//inner for loop(child)
        printf(" ");//this loop print space for pyramid
    }
    for(k=num; k>=1; --k){//inner for loop(child)
        printf("%d",i);//this loop print number for pyramid
    }
    count++;
    num=num-2;
    printf("\n");
    }
getch();
    return 0;
}

When the above code is executed, it produces the following results:

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
   2 2 2 2 2 2 2 2 2 2 2 2 2 2
      3 3 3 3 3 3 3 3 3 3 3 3
         4 4 4 4 4 4 4 4 4 4
            5 5 5 5 5 5 5 5
               6 6 6 6 6 6
                  7 7 7 7
                     8 8
                       9

program 3

Code to inverted pyramid pattern 3

#include 
#include 

int main()
{
    int i,j,k,rows,counter,temp,num;
    printf("Enter number of rows you want: \n");
    scanf("%d",&rows);
    printf("Here your pattern\n");
    counter=1;
    temp=1+(rows-1)*2;

    for(i=1; i<=rows; i++){
       num=1;
    for(j=1; j<=counter; j++)
       {
           printf(" ");//print space in beginning
       }
    for(k=temp; k>=1; k--){
        printf("%d", num);//print number for pattern
        num++;
       }
       counter++;
        temp=temp-2;
        printf("\n");
       }
        return 0;
    }

When the above code is executed, it produces the following results:

Enter number of rows you want:
5
Here your pattern

123456789
  1234567
    12345
      123
        1

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