力扣题目：收集垃圾的最少总时间

题目链接: 2391.收集垃圾的最少总时间

题目描述

代码纯享版

class Solution {
    public int garbageCollection(String[] garbage, int[] travel) {
        int sum = 0;
        int last_M = -1,last_P = -1, last_G = -1;
        for(int i = 0; i < garbage.length; i++){
            String str = garbage[i];
            sum += str.length();
            for(int j = 0; j < garbage[i].length(); j++){
                char a = garbage[i].charAt(j);
                if(a == 'M') last_M = i;
                else if(a == 'P') last_P = i;
                else last_G = i;
            }
        }
        for(int i = 1; i <= Math.max(Math.max(last_M, last_P), last_G); i++){
                if(last_M >= i) sum += travel[i - 1];
                if(last_P >= i) sum += travel[i - 1];
                if(last_G >= i) sum += travel[i - 1];
        }
        return sum;
    }
}