Function pow

1044. Longest Duplicate Substring/src/main.rs:81–86

()

    #[test]
    fn pow() {
        assert_eq!(Solution::pow(2, 2, 3), 1);
        assert_eq!(Solution::pow(26, 3, 33333333333), 17576);
        assert_eq!(Solution::pow(26, 50000, 9223372036854775807), 8527440374548257796);

    }
}