﻿ C Program: From 1 to 1000, find Authomorphic numbers

# C Exercises: Find the the Authomorphic numbers between 1 to 1000

## C Numbers: Exercise-22 with Solution

Write a program in C to find the Authomorphic numbers between 1 and 1000.

Sample Solution:

C Code:

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

bool chkAutomor(int num1)
{
int sqno = num1 * num1;
while (num1 > 0)
{
if (num1 % 10 != sqno % 10)
return false;
num1 /= 10;
sqno /= 10;
}
return true;
}
int main()
{
int i;
printf("\n\n Find the the Authomorphic numbers between 1 to 1000 \n");
printf(" -------------------------------------------------------\n");
printf(" The Authomorphic numbers are: ");
for(i=1;i<=1000;i++)
{
if( chkAutomor(i))
printf("%d ",i);
}
printf("\n");
}
```
```

Sample Output:

``` The Authomorphic numbers are: 1 5 6 25 76 376 625
```

Pictorial Presentation: Flowchart: C Programming Code Editor:

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## C Programming: Tips of the Day

How to use __FILE__ macro shows full path?

Try

```#include<string.h>

#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
For Windows use '\\' instead of '/'.
```

Ref: https://bit.ly/3mOf045

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