#1334. python-数字排列-数字1~7排列组合成7位数字,不打印排列的数字但计算出总数量并打印
python-数字排列-数字1~7排列组合成7位数字,不打印排列的数字但计算出总数量并打印
Background
Description
数字1~7排列组合成7位数字,不打印排列的数字但计算出总数量并打印
Format
Input
Output
Samples
5040
Limitation
1s, 1024KiB for each test case.
数字1~7排列组合成7位数字,不打印排列的数字但计算出总数量并打印
5040
1s, 1024KiB for each test case.
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