MATRIX67大神: http://www.matrix67.com/blog/archives/5900

Chessboard

Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 538 Accepted Submission(s): 241

Problem Description

Consider the problem of tiling an n×n chessboard by polyomino pieces that are k×1 in size; Every one of the k pieces of each polyomino tile must align exactly with one of the chessboard squares. Your task is to figure out the maximum number of chessboard squares
tiled.

Input

There are multiple test cases in the input file.
First line contain the number of cases T (T≤10000).
In the next T lines contain T cases , Each case has two integers n and k. (1≤n,k≤100)

Output

Print the maximum number of chessboard squares tiled.

Sample Input

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波比源码 » HDOJ 5100 Chessboard 构造

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