From 2d8b7574604fe1f8cb5e03d0b2a6d0bce1d3b76e Mon Sep 17 00:00:00 2001 From: deadmarshal Date: Mon, 19 Aug 2024 13:53:19 +0330 Subject: TWC283 --- challenge-283/deadmarshal/java/Ch1.java | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 challenge-283/deadmarshal/java/Ch1.java (limited to 'challenge-283/deadmarshal/java/Ch1.java') diff --git a/challenge-283/deadmarshal/java/Ch1.java b/challenge-283/deadmarshal/java/Ch1.java new file mode 100644 index 0000000000..766e711f7f --- /dev/null +++ b/challenge-283/deadmarshal/java/Ch1.java @@ -0,0 +1,18 @@ +import java.util.Arrays; + +public class Ch1 { + public static void main(String[] args) { + System.out.println(unique_number(new int[]{3, 3, 1})); + System.out.println(unique_number(new int[]{3, 2, 4, 2, 4})); + System.out.println(unique_number(new int[]{1})); + System.out.println(unique_number(new int[]{4, 3, 1, 1, 1, 4})); + } + + private static int unique_number(int[] arr) { + int[] hash = new int[10]; + Arrays.fill(hash, 0); + for (int i = 0; i < arr.length; ++i) hash[arr[i] % 10]++; + for (int i = 0; i < hash.length; ++i) if (hash[i] == 1) return i; + return -1; + } +} -- cgit