$n \leq 1e9$,$n*2$的网格里有$m_1+m_2 \leq 1e6$个障碍物,现有一坦克从$(0,1)$出发要到$(n+1,1/2)$,他每秒可以换行(纵坐标1变2或2变1)也可以发炮弹,然后会强制往前走一格(横坐标+1),一次炮弹打一个障碍,炮弹装载时间$t \leq n$,一开始炮弹没装好.问是否可以到达终点,若可以输出过程中的所有转弯和打炮操作的位置. 比较接地气的一个题.虽然没做出来但大爱. 首先可以把打炮看成“攒步数”,怎么讲呢?比如说坦克在某段时间一直往前走不换行,走到…

童年的记忆,大概是每周末和小伙伴们围坐在电视机前,在20来寸的电视机屏幕里守卫着这个至今都不知道是什么的白色大鸟. 当年被打爆的坦克数量估计也能绕地球个三两圈了吧. 十几年过去了,游戏从2D-3D,画面从8bit到电影级别,操作从10个按键到键盘.摇杆.体感…… 游戏的激情却随着年龄的增长渐渐淡去. [以上是情怀!] …………………………………………………………………………………………………………………………………………………… 像素游戏.极简游戏近年来随着移动设备发展以及社会变化再一次的出现在…

Full Tank? Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7248   Accepted: 2338 Description After going through the receipts from your car trip through Europe this summer, you realised that the gas prices varied between the cities you v…

Codeigniter整合Tank Auth权限类库的教程一开始找了很多CodeIgniter的类库,觉得都不怎么样,后来干脆自己通过CI的钩子系统写了权限管理.但是还是不怎么满意,后来有人推荐tank_auth,感觉挺好的,配置简单,使用也简单,而且作者也一直在更新,现在是1.0 一开始找了很多CodeIgniter的类库,觉得都不怎么样,后来干脆自己通过CI的钩子系统写了权限管理.但是还是不怎么满意,后来有人推荐tank_auth,感觉挺好的,配置简单,使用也简单,而且作者也一直在更新,现在…

Full Tank? Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 5857   Accepted: 1920 Description After going through the receipts from your car trip through Europe this summer, you realised that the gas prices varied between the cities you v…

Crazy Tank Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4562    Accepted Submission(s): 902 Problem Description Crazy Tank was a famous game about ten years ago. Every child liked it. Time f…

Aquarium Tank Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 15  Solved: 4[Submit][Status][Web Board] Description You just bought an “artistic” aquarium tank that has an interesting shape, and you poured L litres of water into the tank. How high is t…

After going through the receipts from your car trip through Europe this summer, you realised that the gas prices varied between the cities you visited. Maybe you could have saved some money if you were a bit more clever about where you filled your fu…

题目链接:http://poj.org/problem?id=3635 题意题解等均参考:POJ 3635 - Full Tank? - [最短路变形][优先队列优化Dijkstra]. 一些口胡: 说实话,上次写类似的二维状态最短路Gym 101873C - Joyride - [最短路变形][优先队列优化Dijkstra],我没能把手写二叉堆优化Dijkstra的给写出来. 这次费了点功夫,也算是给写出来了,需要注意的点还是有点多的.而且我终于深刻理解为啥不推荐手写二叉堆了,主要是代码量相比…

题目链接:http://poj.org/problem?id=3635 Description After going through the receipts from your car trip through Europe this summer, you realised that the gas prices varied between the cities you visited. Maybe you could have saved some money if you were…