JAVA_Baseball Game_LeetCode 682

JAVA_Baseball Game_LeetCode 682 풀이 class Solution { public int calPoints(String[] operations) { Stack<Integer> stack = new Stack<>(); for (String s : operations) { if (s.equals("+")) { int a = stack.pop(); int newScore = a + stack.peek(); stack.push(a); stack.push(newScore); }else if (s.equals("D")) { stack.push(2 * stack.peek()); }else if (s.equals("C")) { stack.pop(); }else stack.push(Integer.parseInt(s)); } int totalScore = 0; while (!stack.isEmpty()) totalScore += stack.pop(); return totalSc...

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