32 lines
551 B
C
32 lines
551 B
C
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int num_digits(int num) {
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if (num < 0) num = -num;
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if (num >= 10) return num_digits(num / 10) + 1;
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return 1;
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}
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int get_digit_at_position(int number, int index) {
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if (index < 0) {
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return -1;
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}
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int divisor = 1;
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int tempNumber = number;
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while (tempNumber >= 10) {
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tempNumber /= 10;
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divisor *= 10;
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}
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if (index >= divisor) {
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return -1;
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}
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for (int i = 0; i < index; i++) {
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number /= 10;
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}
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int digit = number % 10;
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return digit;
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}
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