Thread: need help with this code

Hi

I'm new to c programming and need some help with this code

I'm ask to write a program that reads in the side of a square and the prints that square out of asterisks. The program should work for squares of all side sizes between 1 and 20. For example, if the program reads a size of 4, it should print

Code:

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

It then ask me to modify the program so that it prints a hollow square. For example if the program reads a size of 5, it should print

Code:

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

I was able to do the first part but don't know how to do the second part can any one help me

below is the code for the first part:

Code:

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

int inputInteger(int, int);

#define MININPUT 1
#define MAXINPUT 20
#define TRUE 1
#define FALSE 0

int main (void)
{

int squareSize, column, row;
  

squareSize = inputInteger(MININPUT, MAXINPUT);

row = squareSize;

while(row >= 1){
         column = 1;
         while(column <= squareSize){
                      printf("*");
                      column++;
                      }
         
         printf("\n");
         row--;
         }
system("pause");
}

int inputInteger(int minInput,int maxInput){
   int reading;
   int validInput;
   do{
      printf("\nPlease enter the number of side of a square: ");
      fflush(stdin);
      validInput = scanf("%d", &reading);
      if(!validInput)
                     printf("\nThis is not a valid entry\n");
      if((validInput == TRUE)&&((reading >maxInput)||(reading < minInput))){
           printf("Error, the number entered needs to be between %d to %d\n", minInput, maxInput);
           validInput = FALSE;
           }
   }while(!validInput);
   return reading;
   }