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2026-08-08 17:07:48
放苹果
Time Limit:
1000ms
Memory Limit:
10000KB
This problem will be judged on
PKU
. Original ID:
1664
64-bit integer IO format:
%lld
Java class name:
Main
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Description
把M个同样的苹果放在N个同样的盘子里,允许有的盘子空着不放,问共有多少种不同的分法?(用K表示)5,1,1和1,5,1 是同一种分法。
Input
第一行是测试数据的数目t(0 <= t <= 20)。以下每行均包含二个整数M和N,以空格分开。1<=M,N<=10。
Output
对输入的每组数据M和N,用一行输出相应的K。
Sample Input
1 7 3
Sample Output
8
Source
lwx@POJ
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