fixed dependencies
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36
vendor/github.com/nuknal/goNum/Factorial.go
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36
vendor/github.com/nuknal/goNum/Factorial.go
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// Factorial
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/*
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------------------------------------------------------
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作者 : Black Ghost
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日期 : 2018-12-6
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版本 : 0.0.0
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------------------------------------------------------
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计算自然数n的阶乘
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------------------------------------------------------
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输入 :
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n 自然数
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输出 :
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sol 阶乘结果
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err 解出标志:false-未解出或达到步数上限;
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true-全部解出
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------------------------------------------------------
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*/
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package goNum
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// Factorial 计算自然数n的阶乘
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func Factorial(n int) int {
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//判断n
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if n < 0 {
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panic("Error in goNum.Factorial: n < 1")
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}
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if n == 0 {
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return 1
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}
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//计算
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var sol int = 1
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for i := n; i > 1; i-- {
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sol = sol * i
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}
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return sol
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}
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