백준 10773 제로 - java

import java.util.*; public class Main { public static void main (String args[]) { Scanner sc = new Scanner(System.in); Stack<Long> stack = new Stack<>(); int K = sc.nextInt(); for (int i = 0; i < K; i++) { Long input = sc.nextLong(); if (input == 0 && !stack.isEmpty()) { stack.pop(); } else { stack.push(input); } } long sum = 0; while( 0 < stack.size()) { sum += stack.peek(); stack.pop(); } System.out.println(sum); } }...

원문링크 : 백준 10773 제로 - java