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Editorial Team
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Asked: 2026-05-16T08:14:24+00:00

I want to write a program for finding out the sum of first and

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I want to write a program for finding out the sum of first and the last digit of any number entered through keyboard. For example, I entered 52264. Output must be 5+4 = 9.

Yes, this is an assignment.

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1 Answer

  1. Editorial Team

    Well, the last digit’s easy enough to figure out, right?

    int lastDigit = input % 10;

    As for the first digit, I’m not sure about the most efficient way to get that. The first thought that immediately springs to my mind is:

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

    So, with 52264 for example:

    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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