fork download
copy 
  1. #include <iostream>
  2. #include <boost/multiprecision/cpp_int.hpp>
  3.  
  4. using namespace std;
  5. using namespace boost::multiprecision;
  6.  
  7. int main()
  8. {
  9.     const cpp_int M=1000000007;
  10.     cpp_int lcm(cpp_int,cpp_int),rlcm(cpp_int,cpp_int);
  11.     cpp_int n;
  12.     cin>>n;
  13.     cout<<rlcm(1,n)%M;
  14.     return 0;
  15. }
  16.  
  17. cpp_int lcm(cpp_int a,cpp_int b)
  18. {   cpp_int c,a1,b1;
  19.     a1=a;   
  20.     b1=b;
  21.     while(b!=0)
  22.     {  c=a;
  23.        a=b;
  24.        b=c%b;
  25.     }
  26.     return a1*(b1/a);
  27. }
  28.  
  29. cpp_int rlcm(cpp_int f,cpp_int l)
  30. {   
  31.     cpp_int lcm(cpp_int,cpp_int);
  32.     cpp_int c=f+1;
  33.     for(;c<=l;c++)
  34.     {
  35.         f=lcm(f,c);
  36.     }
  37.  
  38.     return f;
  39. }
Success #stdin #stdout 0s 3476KB
comments ()
stdin
copy 
1000
stdout
copy 
849686073
https://ideone.com/KCQM7F
boost cpp for https://b...content-available-to-author-only...t.org/problems/basics-1
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!