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get the digit of a integer number
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| #include <cmath> | |
| /* | |
| * get the digit of a integer number | |
| */ | |
| static int | |
| get_digit(int num) { | |
| if (num == 0) | |
| return 0; | |
| else | |
| return (int)log10((int)num)+1; | |
| } |
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