C语言植物大战僵尸 Plants VS Zombies

Problem Description
Plants VS Zombies is a popular game in the TJU ACM Team now. However, RoBa is not very good at this game, so he wants you to write a program to help him.

We take a simplified version of this game. There are N rows in your backyard, and there are N zombies want to walk through your yard to eat your brain, and exactly one zombie in each row. The only method to defense the zombies is to plant “peashooter” on the other side of the yard. However, you need T seconds to plant one peashooter. Once the peashooter is planted, it will begin to shoot at the zombies in its row. The zombies have different speed Vi and defense Di, which means that, the zombie in the i-th row need Vi second the walk though the yard, and the i-th zombie will be killed after Di second of shooting. Please note you can only plant one peashooter in each row.

Unfortunately, in some cases, for the zombies are too fast and/or too strong and/or your planting is too slow, you cannot kill all the zombies in time, so the zombies will eat your brains.

Input
There are several test cases in the input. The first line of each test case contains two integers N (1 <= N <= 100) and T, indicating the number of rows and the time for planting one peashooter. Then N lines follow, each of which contains two integers Vi and Di.

Output
Output one line for each test case. If you can kill all the zombies, output N numbers separated by a space, that is, a permutation of 1,2,…N, indicating the order of your planting. If you cannot defend your yard, output “The zombies eat your brains!” in one line.

Sample Input
3 10
20 10
40 10
30 10
3 10
20 10
40 11
30 10

Sample Output
1 3 2

1个回答

C语言计算植物和僵尸的问题的算法
Problem Description The "endless" model in "I, zombie" of "Plants vs. Zombies" is my favourite. The aim of the game is to put down the zombies most reasonable in the right-most , to eat the brain protected by Plants in the left-most. To simplify the problem ,we provide only one kind of Zombies : normal Zombies with 50 hp each. The map contains one row only, and we provide two kinds of plants : Peashooter (with 10hp) and Potato Mine. The operating steps of every second are as below(Warning: make sure your program strictly follow the order of these steps): 1.Put some or none zombies in the right-most grid one by one. (In the right grid of the right-most plant at beginning). 2.Judge every survived zombie, whether he's standing on a grid with a Peashooter. 2.1.If it's true, he attacks the Peashooter in his grid, and the Peashooter decreases 1 hp. The Peashooter's hp may be negative at that moment, but it's still alive! 2.2.If it's false, he moves left for one grid. 3.If there are still some zombies in the map, every survived Peashooter will shoot a pea to the zombie who was put earliest. (the zombie's hp decreases 1 hp for each pea, the zombie's hp can be negative at that moment, but it's still alive!) 4.If there are zombies in the grids where Potato Mine stands , then the Potato Mine explodes , all the zombies' hp in this grid become 0. 5.The plants and zombies with non-positive hp disappear(until now they are dead). Now, given the map, you are to tell me how many zombies are needed at least, in order to eat the brain in the left-most? Input The first line is a number T (1<=T<=100), represents the number of cases. The next T line with n(0<n<=100) characters ,represents each case ,'P' represents Peashooters ,'M' represents Potato Mine ,no other character in the input. Output Output a number represents the minimum zombies needed to eat the brain in the left-most. Following the case number (start with 1). Sample Input 5 PM PP PPP MMMMM PPMM Sample Output Case 1: 2 Case 2: 1 Case 3: 2 Case 4: 6 Case 5: 3

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