Automorphic Number or Not | C Program
Automorphic Number in C
In this program, we have to find the number is an Automorphic number or not using C programming. Basically, automorphic number is a number whose square ends with the same digits as number itself.
Automorphic Number in C Programming
Example:
5 =(5)2 = 25 6 = (6)2 = 36 25 = (25)2 = 625 76=(76)2 = 5776 376 = (376)2 = 141376 890625 = (890625)2 = 793212890625
These numbers are the automorphic numbers.
C Program:-
Run
#include <stdio.h>
int checkAutomorphic(int num){
int square = num * num;
while(num != 0)
{
// means not automorphic number
if(num % 10 != square % 10){
return 0;
}
// reduce down numbers
num /= 10;
square /= 10;
}
// if reaches here means automorphic number
return 1;
}
int main ()
{
int num = 376, square = num * num ;
if(checkAutomorphic(num))
printf("Num : %d, Square: %d - Automorphic Number",num, square);
else
printf("Num : %d, Square: %d - Not Automorphic Number",num, square);
}
// Time complexity: O(N)
// Space complexity: O(1)Output:-
Num : 376, Square: 141376 - Automorphic Number
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#include
#include
int main()
{
int number = 25;
int count=0;
int ans = number * number; // 625
int orig = number;
int result=0;
while(number>0)
{
count++;
number = number /10;
}
for(int i=0;i<count;i++)
{
int remainder = ans%10;
result = remainder * pow(10, i) + result;
ans=ans/10;
}
printf("%d",result);
if(orig == result)
{
printf("It is an automorphic number");
}
else{
printf("Not an automorphic number");
}
}
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n = input()
print(“YES” if int(str(n**2)[-len(str(n))::]) == n else “No”)