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recursionMystery3

Language/Type: C++ recursion
Author: Marty Stepp (on 2016/06/16)

For each of the calls to the following recursive function below, indicate what output is produced:

int recursionMystery3(int n) {
    if (n < 0) {
        return -recursionMystery3(-n);
    } else if (n < 10) {
        return (n + 1) % 10;
    } else {
        return 100 * recursionMystery3(n / 10) + (n + 1) % 10;
    }
}
recursionMystery3(7)
recursionMystery3(42)
recursionMystery3(385)
recursionMystery3(-790)
recursionMystery3(89294)

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