C Exercises: Reads the side of a square and prints a hollow square using hash (#) character
C Basic Declarations and Expressions: Exercise-81 with Solution
Write a C program that reads the side (side sizes between 1 and 10 ) of a square and prints a hollow square using hash (#) character.
Sample Input: 10
Sample Solution:
C Code:
#include<stdio.h>
int main()
{
int size, i, j;
printf( "Input the size of the square: " );
scanf( "%d", &size );
if(size < 1 || size > 10) {
printf("Size should be in the range 1 to 10\n");
return 0;
}
for(i=0; i<size; i++)
{
for(j=0; j<size; j++)
{
if(i==0 || i==size-1)
printf("#");
else if(j==0 || j==size-1)
printf("#");
else
printf(" ");
}
printf("\n");
}
return 0;
}
Sample Output:
Input the size of the square: ########## # # # # # # # # # # # # # # # # ##########
Pictorial Presentation:
Flowchart:
C programming Code Editor:
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C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
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