C Tips

Finding first and last digit of the number .
Eg. 52264  . FirstDigit = 5 and LastDigit=4.

int input = 52264; 

int firstDigit = input;

while (firstDigit >= 10)
{
    firstDigit /= 10;
}

int lastDigit = 52264 % 10; // 52264 % 10 = 4
int firstDigit = 52264;
firstDigit /= 10; // 5226
firstDigit /= 10; // 522
firstDigit /= 10; // 52
firstDigit /= 10; // 5 -- less than 10

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Find number is even or odd.

int even(const int value)

{

       return((value & 1) == 0);

}

int even(const int value)

{

       return( ( value % 10) == 0);

}

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