37 lines
782 B
C++
37 lines
782 B
C++
|
/*
|
||
|
|
* C++ Program to Implement Euler Theorem
|
||
|
|
*/
|
||
|
|
#include <iostream>
|
||
|
|
#include <vector>
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
vector<int> inverseArray(int n, int m)
|
||
|
|
{
|
||
|
|
vector<int> modInverse(n + 1, 0);
|
||
|
|
modInverse[1] = 1;
|
||
|
|
for (int i = 2; i <= n; i++)
|
||
|
|
{
|
||
|
|
modInverse[i] = (-(m / i) * modInverse[m % i]) % m + m;
|
||
|
|
}
|
||
|
|
return modInverse;
|
||
|
|
}
|
||
|
|
//Main
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
vector<int>::iterator it;
|
||
|
|
int a, m;
|
||
|
|
cout<<"Enter number to find modular multiplicative inverse: ";
|
||
|
|
cin>>a;
|
||
|
|
cout<<"Enter Modular Value: ";
|
||
|
|
cin>>m;
|
||
|
|
cout<<inverseArray(a, m)[a]<<endl;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
Enter number to find modular multiplicative inverse: 5
|
||
|
|
Enter Modular Value: 7
|
||
|
|
3
|
||
|
|
|
||
|
|
------------------
|
||
|
|
(program exited with code: 1)
|
||
|
|
Press return to continue
|