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20220601数学:阶乘后的零
2022-07-03 09:20:00 【丿SeeYouAgain】
题目描述:给定一个整数 n ,返回 n! 结果中尾随零的数量。提示 n! = n * (n - 1) * (n - 2) * ... * 3 * 2 * 1。
编码实现:
public int trailingZeroes(int n) {
int result = 0;
while (n >= 5){
result += n/5;
n /= 5;
}
return result;
}
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