LeetCode——Gas Station There areNgas stations along a circular route, where the amount of gas at stationiisgas[i]. You have a car with an unlimited gas tank and it costscost[i]of gas to travel from stationito its next station (i+1). You begin the journey with an empty tank at on...
LeetCode:Gas Station 题目地址:here There areNgas stations along a circular route, where the amount of gas at stationiisgas[i]. You have a car with an unlimited gas tank and it costscost[i]of gas to travel from stationito its next station (i+1). You begin the journey with an empty ...
leetcode -- Gas Station -- 跟jump game像,重点--贪心 https://leetcode.com/problems/jump-game/ 思路1:贪心 O(n) 思路就是贪心。子问题就是判断车在第i个position的时候是否可以到达i+1个position,条件就是当前第i个position所加的油gas[i] + diff(就是到达第i个position时剩下来的油,可以看做前面...
【Leetcode】Gas Station https://leetcode.com/problems/gas-station/题目: gas[i].cost[i] Return the starting gas station's index if you can travel around the circuit once, otherwise return -1. Note: The solution is guaranteed to be unique. 思路: 看了tag发现是贪心,想起老师上课说贪心实现起...
Travel to station 0. Your tank = 8 - 2 + 1 = 7 Travel to station 1. Your tank = 7 - 3 + 2 = 6 Travel to station 2. Your tank = 6 - 4 + 3 = 5 Travel to station 3. The cost is 5. Your gas is just enough to travel back to station 3. ...
Gas Station 解题思路 贪心法。但其实需要证明,证明详见: http://bookshadow.com/weblog/2015/08/06/leetcode-gas-station/ 看懂证明,才能看懂代码 结论1:若从加油站A出发,恰好无法到达加油站C(只能到达C的前一站)。则A与C之间的任何一个加油站B均无法到达C。
Return the starting gas station's index if you can travel around the circuit once, otherwise return -1. Note: The solution is guaranteed to be unique. 沿环形路线有N个加油站,其中第 i 站的煤气量为gas[ i ]。你有一辆有一个无限制油箱的汽车,从 i 站到下一站(i+1)要花费大量的汽油。你从...
Return the starting gas station's index if you can travel around the circuit once, otherwise return -1. 解题思路 可以先算出每一站到下一站的净获油量,就是每一站得到的油量减去到下一站会消耗的油量。既然能走完所有站,则说明油量足够,所以每一站的净获油量相加的总值为正,就表示能走完所有站。
Leetcode 134. Gas Station 来自2050 . 来自专栏 · 题解 目录 收起 题目描述 解法 题目描述 在一条环路上有 N 个加油站,其中第 i 个加油站有汽油 gas[i] 升。 你有一辆油箱容量无限的的汽车,从第 i 个加油站开往第 i+1 个加油站需要消耗汽油 cost[i] 升。你从其中的一个加油站出发,开始时...
There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it costs cost[i] of gas to travel from station i to its next station (i+1). You begin the journey with an empty tank at one of th...