Question

Programming in C (Functons with and without parameters)

Write a C program that reads the height and width of the flipped T pattern shown below (both have to be >0). It then displays the pattern as shown in the sample runs.

Re-write the program such that the main function uses a function with the following prototype to test for input validity:

      int isValidInput(int height, int width);

and functions with the following prototypes to display the pattern:

           void displayHorizontalStars(int width);

     void displayVerticalStars(int height);

example:

Sample program runs: Enter height and width of the pattern: 07 Wrong input both height and width must be > 0 Enter height and width of the pattern: 6 10 Coton boat and db af banattann. O

Answer 1

#include <stdio.h>
void displayVerticalStars(int a)
{

while(a>0){
printf("*\n");
a--;
}
}
void displayHorizontalStars(int a)
{
while(a>0){
printf("*");
a--;
}
printf("\n");
}
int isValidInput(int h,int w){
if(h>0 && w>0)
return 1;
return 0;
}
int main()
{
int h ,w;
while(1){
printf("Enter height and width of the pattern: ");
scanf("%d%d",&h,&w);
if(isValidInput(h,w))
break;
printf("Wrong input both height and width must be > 0\n");
  
}
displayVerticalStars(h/2);

displayHorizontalStars(w);
displayVerticalStars(h/2);

return 0;
}