[Leetcode]134 gas station

https://oj.leetcode.com/problems/gas-station/

http://blog.csdn.net/linhuanmars/article/details/22706553

Public class solution {    public int cancompletecircuit (int[]  gas, int[] cost)  {                 int len = gas.length;         // Cost if run all stations                 int allcost = 0;                 // Start point         int start = 0;                 // How many gas left         int left = 0;        for   (Int i = 0 ;  i < len ; i ++)         {             allcost = allcost + gas[i]  - cost[i];            left =  left + gas[i] - cost[i];             if  (left < 0)             {                 start =  i + 1;                 left = 0;            }         }                 if  (start == len | |  allcost < 0)             return  -1;        else             return start;    }}

[Leetcode]134 gas station