C hollow diamond pattern inside the square

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C hollow diamond pattern inside the square

In this article, we will discuss the C hollow star diamond pattern inside the square

we can create the star, number, alphabet, binary patterns using loops (for, while and do-while loop) in C programming language

In this post, we are going to learn how to create a diamond star pattern inside the square in C language using the given symbol.

The diamond inside the square pattern using for loop

This program allows the user to enter the number of rows then the program displays the hollow diamond pattern inside the square star using for loop in C language

Program 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Please enter the number of rows\n");
    scanf("%d",&rows);//get input from user
    //loop for display upper half part of the pattern
for(i=1; i<=rows; i++){
    for(j=i; j<=rows; j++){
     printf("*");//print star
  }

  for(j=1; j<=(2*i-2); j++){
     printf(" ");//print space
  }
  for(j=i; j<=rows; j++){
     printf("*");//print star
  }
  printf("\n");
}
  //loop for printing lower half part  of the pattern
for(i=1; i<=rows; i++){
    for(j=1; j<=i; j++){
     printf("*");//print star
  }

  for(j=(2*i-2); j<(2*rows-2); j++){
     printf(" ");//print space
  }
  for(j=1; j<=i; j++){
     printf("*");
  }
  printf("\n");//move to next line
  }
  getch();
  return 0;
  }

When the above code is executed itproduces the following result

The diamond inside the square pattern using while loop

This program allows the user to enter the number of rows then the program displays the hollow diamond pattern inside the square star using while loop in C language

Program 2

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Please enter the number of rows\n");
    scanf("%d",&rows);//get input from user
    //loop for display upper half part of the pattern
    i=1;
while(i<=rows){
        j=i;
    while(j<=rows){
     printf("*");//print star
 j++;
  }
j=1;
  while(j<=(2*i-2)){
     printf(" ");//print space
      j++;
  }
  j=i;
  while(j<=rows){
     printf("*");//print star
     j++;
  }
  printf("\n");
   i++;
}
  //loop for printing lower half part  of the pattern
  i=1;
while( i<=rows){
        j=1;
    while(j<=i){
     printf("*");//print star
 j++;
  }
j=(2*i-2);
  while(j<(2*rows-2)){
     printf(" ");//print space
      j++;
  }
  j=1;
  while(j<=i){
     printf("*");
      j++;
  }
  printf("\n");//move to next line
  i++;
  }
  getch();
  return 0;
  }

When the above code is executed it produces the following result

The diamond inside the square pattern using for loop

This program allows the user to enter the number of rows then the program displays the hollow diamond pattern inside the square star using do-while loop in C language

Program 3

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Please enter the number of rows\n");
    scanf("%d",&rows);//get input from user
    //loop for display upper half part of the pattern
    i=1;
do{
        j=i;
    do{
     printf("*");//print star
j++;
  }while(j<=rows);
j=1;
  while( j<=(2*i-2)){
     printf(" ");//print space
      j++;
  }
  j=i;
  do{
     printf("*");//print star
      j++;
  }while(j<=rows);
  printf("\n");//move to next line
  i++;
}while(i<=rows);
  //loop for printing lower half part  of the pattern
  i=1;
do{
        j=1;
    do{
    printf("*");//print star
     j++;
  }while(j<=i);
j=(2*i-2);
  while(j<(2*rows-2)){
     printf(" ");//print space
j++;
  }
  j=1;
  do{
     printf("*");
      j++;
  }while(j<=i);
  printf("\n");//move to next line
  i++;
  }while(i<=rows);
  getch();
  return 0;
  }

When the above code is executed it produces the following result

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