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  1. //
  2. //  SmallFactorials.cpp
  3. //  3
  4. //
  5. //  Created by Chintan Shah on 18/08/13.
  6. //  Copyright (c) 2013 Chintan Shah. All rights reserved.
  7. //
  8.  
  9. #include <stdio.h>
  10. #include <iostream>
  11. #include <math.h>
  12. #include <vector> 
  13. #include <algorithm>
  14. using namespace std;
  15. inline int FAST_IO()
  16. {    int x=0;
  17.     char ch;
  18.     ch=getchar_unlocked();
  19.     x = ch-48;
  20.     while ((ch=getchar_unlocked()) >= 48 && ch <= 57)
  21.         x=x*10+ch-48;
  22.     return x;
  23. }
  24.  
  25.  
  26. int main()
  27. {
  28.     int t=FAST_IO();
  29.     cout<<t<<endl;
  30.     int a[200];
  31.     int m=0,temp;
  32.     while(t>0)
  33.     {
  34.         a[0]=1;
  35.         int x=FAST_IO();
  36.         cout<<x<<endl;
  37.         int y=x;
  38.         for(;y>=2;y--)
  39.         {
  40.         for(int i=0;i<=m;i++)
  41.         {
  42.             temp=(a[i]*y)+temp;
  43.             a[i]=temp%10;
  44.             temp=temp/10;
  45.         }
  46.             while(temp>0)
  47.             {
  48.                 a[++m]=temp%10;
  49.                 temp=temp/10;
  50.             }
  51.         }
  52.  
  53.         t--;
  54.  
  55.         for(int i=m;i>=0;i--)
  56.         {
  57.             cout<<a[i];
  58.  
  59.         }
  60.         cout<<endl;
  61.         for(int i=m;i>=0;i--)
  62.         {
  63.             a[i]=0;
  64.  
  65.         }
  66.         m=0;
  67.     }
  68.     return 0;
  69.  
  70.  
  71. }
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https://ideone.com/DxXxJT
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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