Factorial of the topic 1076:n

Title Description:

Enter a positive integer n to output the factorial of N.

Input:

Positive integer N (0<=n<=1000)

Output:

Input may include multiple sets of data, for each set of input data, the factorial of the output n

Sample input:

4515

Sample output:

241201307674368000

Source:

2006, Tsinghua University computer Research Life Test real problem

#include <iostream> #include <string.h> #include <stdio.h>//code using namespace std with no timeouts;    int main () {int N;    int num[3001];        while (cin >>n) {int i,j,k;        memset (num,0,sizeof (num));        Num[0] = 1;        int length = 1;            if (N = = 0) {cout << 1 <<endl;        Continue             } for (i = 1; i<=n; i++) {int over = 0;                for (j = 0; J < Length, j + +) {Num[j] = num[j] * i + over;                    if (Num[j] >=) {over = Num[j]/10;                NUM[J] = num[j]% 10;            } else over = 0;                } while (over! = 0) {int temp = over% 10;                Num[length + +] = temp;            over = OVER/10;  }} for (i = 3000;i >=0; i--) if (num[i]! = 0) break;      for (j = i; j >= 0; j--) cout<<num[j];    cout << Endl; } return 0;} /************************************************************** problem:1076 User:carvin language:c++ Resul t:accepted time:1320 Ms Memory:1520 kb****************************************************************/

Factorial of the topic 1076:n