# C program to print out the input number in large size

·2 mins
Mayukh Datta
Problem Solving

Give any number as input and the program will print the number in large. I found this problem in the Let us C book by Yashavant Kanetkar. I have also posted this solution on GeeksForGeeks.

Code:

``````#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#define H 7
#define W 8 //one extra room in the char array is required for storing '\\0'
void main()
{
char num\[11\];  //here too one extra room is needed for the '\\0'
char c;  //for option
int i, j, k;
//declaring char 2D arrays and initializing with hash-printed digits
char zero\[H\]\[W\]={" ##### ", //H=0
" #   # ", //H=1
" #   # ", //H=2
" #   # ", //H=3
" #   # ", //H=4
" #   # ", //H=5
" ##### "},//H=6

one\[H\]\[W\]={"   #   ",
"  ##   ",
"   #   ",
"   #   ",
"   #   ",
"   #   ",
" ##### "},

two\[H\]\[W\]={" ##### ",
"     # ",
"     # ",
" ##### ",
" #     ",
" #     ",
" ##### "},

three\[H\]\[W\]={" ##### ",
"     # ",
"     # ",
" ##### ",
"     # ",
"     # ",
" ##### "},

four\[H\]\[W\]={" #     ",
" #   # ",
" #   # ",
" ##### ",
"     # ",
"     # ",
"     # "},

five\[H\]\[W\]={" ##### ",
" #     ",
" #     ",
" ##### ",
"     # ",
"     # ",
" ##### "},

six\[H\]\[W\]={" ##### ",
" #     ",
" #     ",
" ##### ",
" #   # ",
" #   # ",
" ##### "},

seven\[H\]\[W\]={" ##### ",
"     # ",
"     # ",
"  #### ",
"     # ",
"     # ",
"     # "},

eight\[H\]\[W\]={" ##### ",
" #   # ",
" #   # ",
" ##### ",
" #   # ",
" #   # ",
" ##### "},

nine\[H\]\[W\]={" ##### ",
" #   # ",
" #   # ",
" ##### ",
"     # ",
"     # ",
"     # "};

do
{
printf("Enter a number upto 10 digits:- ");
fflush(stdin);
gets(num);
if(strlen(num)>10)
printf("\\nYou must enter a number upto 10 digits.\\nTry again!\\n");
else
{
printf("\\n");

k=1;
j=0;  //controls H of each digit
while(k<=7)  //controls height
{
for(i=0;i<strlen(num);i++)  //reads each digit
{
if(num\[i\]=='0')
printf("%s", zero\[j\]);
else if(num\[i\]=='1')
printf("%s", one\[j\]);
else if(num\[i\]=='2')
printf("%s", two\[j\]);
else if(num\[i\]=='3')
printf("%s", three\[j\]);
else if(num\[i\]=='4')
printf("%s", four\[j\]);
else if(num\[i\]=='5')
printf("%s", five\[j\]);
else if(num\[i\]=='6')
printf("%s", six\[j\]);
else if(num\[i\]=='7')
printf("%s", seven\[j\]);
else if(num\[i\]=='8')
printf("%s", eight\[j\]);
else if(num\[i\]=='9')
printf("%s", nine\[j\]);
}
printf("\\n");
k++;
j++;
}
}
printf("\\nEnter Y to continue:- ");
fflush(stdin);
scanf("%c", &c);
}while(c=='Y'||c=='y');
}
``````

Author
Mayukh Datta