# 2162. Minimum Cost to Set Cooking Time
###### tags: `Leetcode` `Medium`
Link: https://leetcode.com/problems/minimum-cost-to-set-cooking-time/
## 思路
对于每个time来说只有两种选择
1. Punch minutes and seconds as is,
2. or punch minutes - 1 and seconds + 60.

只要比较他们两个的cost就可以了
## Code

class Solution {
    public int minCostSetTime(int startAt, int moveCost, int pushCost, int targetSeconds) {
        int m = targetSeconds/60, n = targetSeconds%60;
        return Math.min(cost(startAt, moveCost, pushCost, m, n), cost(startAt, moveCost, pushCost, m-1, n+60));
    }
    private int cost(int startAt, int moveCost, int pushCost, int m, int n){
        if(Math.max(m, n)>99) return Integer.MAX_VALUE;
        String str = String.valueOf(m*100+n);
        int prev = startAt, cost = 0;
        for(int i=0; i<str.length(); i++){
            cost += (str.charAt(i)-'0'==prev)?0:moveCost;
            cost += pushCost;
            prev = str.charAt(i)-'0';
        }
        
        return cost;
    }
}