C program to print Parallelogram star pattern using for loop

C program to print Parallelogram pattern using for loop

In this article, we will discuss the concept of C program to print Parallelogram and Hollow Parallelogram star pattern using for loop

In this post, we are going to learn how to write a program to print  parallelogram and Hollow parallelogram patterns using for loop in C programming  language.

 

Display parallelogram  star patterns Using for loop

Code to print Parallelogram star pattern

Program 1

This program allows the user  to enter the number of rows , columns and any symbol then it will display  the parallelogram    pattern using for loop in C programming language

#include <stdio.h>
#include <stdlib.h>
int main() {
    int i,j,rows,columns;
//integer variable declaration
    char ch;
//char variable declaration
    printf("Enter the number of rows\n");
//Ask input from the user to rows
scanf("%d",&rows);
//Store the row in the rows variable entered by user
 printf("Enter the number of columns\n");
//Ask input from the user to columns
scanf("%d%c",&columns,&ch);
//Store the column in the columns variable entered by user
printf("Enter the character for pattern\n");
//Ask input from the user to symbol
ch=getchar();
//Store the symbol in the ch variable entered by user
printf("\n");

for(i=1; i<=rows; i++){//outer for loop

   for(j=1; j<=rows-i; j++){//inner for loop
   printf(" ");//print space
   }
   for(j=1; j<=columns; j++){//inner for loop
   printf("%c",ch);//print symbol after space
}
 printf("\n");//move to next line
}
getch();
    return 0;
}

When the above code is executed, it produces the following result

 

Code to print Hollow Parallelogram star pattern

Program 2

This program allows the user  to enter the number of rows , columns and any symbol then it will display  the hollow parallelogram  star  pattern using for loop in C programming language

#include <stdio.h>
#include <stdlib.h>
int main() {
    int i,j,rows,columns;
    //integer variable declaration
    char ch;
    //char variable declaration
    printf("Enter the number of rows\n");
    //Ask input from the user to rows
    scanf("%d",&rows);
    //store the user input in the rows variable
    printf("Enter the number of columns\n");
        //Ask input from the user to columns
scanf("%d%c",&columns,&ch); //store the user input- columns and char
printf("Enter the character for pattern\n");
ch=getchar();
printf("\n");


for(i=1; i<=rows;  i++){//outer for loop

   for(j=1; j<=rows-i;  j++){//inner for loop
   printf(" ");//print space

   }

   for( j=1; j<=columns;  j++){//inner for loop
   if(i==1 || i==rows || j==1 || j==columns){
   printf("%c",ch);//print symbol after space
   }
   else{
         printf(" ");//print space
   }


   }
 printf("\n");//move to next line

}
getch();
    return 0;
}

When the above code is executed, it produces the following result

 

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