C++ code to find trailing zeros in factorial of a number #include<bits/stdc++.h>usingnamespacestd;inttrailingZeros(intn){intcount=0;if(n<0)return-1;for(inti=5;n/i>0;i*=5){count+=n/i;}returncount;}intmain(){intn;cout<<"enter input,n"<<endl;cin>>n;if(trailingZeros(n))cout...
// Code to count trailing zeroes in a factorial #include<bits/stdc++.h> using namespace std; int main() { int n; cout<<"Enter the number: "; cin>>n; // Initializing count to zero if(n<=4) { cout<< "\nTotal number of trailing 0s in factorial of " <<n << " is...
Python program to count number of trailing zeros in Factorial of number N # Define a function for finding# number of trailing zeros in N!deffind_trailing_zeros(num):sum=0i=1# iterating untill quotient is not zerowhileTrue:# take integer divisonquotient=num //(5**i)ifquotient==0:break...
转自GeeksforGeeks的想法:The idea is to considerprime factorsof a factorial n. A trailing zero is always produced by prime factors 2 and 5. If we can count the number of 5s and 2s, our task is done. Consider the following examples. n = 5:There is one 5 and 3 2s in prime factors...
172. Factorial Trailing Zeroes Given an integer n, return the number of trailing zeroes in n!. Example 1: Input: 3 Output: 0 Explanation: 3! = 6, no trailing zero. 1 2 3 Example 2: Input: 5 Output: 1 Explanation: 5! = 120, one trailing zero. 1 2 3 Note: Your solution ...
172. Factorial Trailing Zeroes # 题目# Given an integer n, return the number of trailing zeroes in n!. Example 1: Input: 3 Output: 0 Explanation: 3! = 6, no trailing zero. Example 2: Input: 5 Output: 1 Explanation: 5! = 120, one trailing zero. Note: Your solution should be...
Explanation: 5! = 120, one trailing zero. 题目问阶乘的结果有几个零,如果用笨方法求出阶乘然后再算 0 的个数会超出时间限制。 然后我们观察一下,5 的阶乘结果是 120,零的个数为 1: 5! = 5 * 4 * 3 * 2 * 1 = 120 末尾唯一的零来自于 2 * 5。很显然,如果需要产生零,阶乘中的数需要包含...
172 Factorial Trailing Zeroes(阶乘后的零)———附带详细思路和代码,文章目录0效果1题目2思路3代码0效果1题目Givenanintegern,returnthenumberoftrailing
172. Factorial Trailing Zeroes 题目 Given an integer n, return the number of trailing zeroes in n!. Example 1: Input: 3 Output: 0 Explanation: 3! = 6, no trailing zero. Example 2: Input: 5 Output: 1 Explanation: 5! = 120, one trailing zero....
Hint: You're not meant to calculate the factorial. Find another way to find the number of zeros. 我的答案1 defzeros(n):ifn==0:return0else:count=0foriinrange(1,n+1):ifstr(i)[-1]=='5'orstr(i)[-1]=='0':whilei!=0and i%5==0:count+=1i//= 5returncount ...