bdfz_2024_summer/day7/inverse/inverse.cpp
2024-08-09 10:03:38 +08:00

55 lines
934 B
C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
int binExp(int b,int e,int m){
int r=1;
while(e>0){
if(e%2==1){
r=(r*b)%m;
}
b=(b*b)%m;
e=e>>1;
}
return r;
}
int inverse(int a,int p){
return binExp(a, p-2, p);
}
#ifdef OITEST
#endif
#ifndef OITEST
#endif
signed main(signed argc ,char* argv[]){
cin.sync_with_stdio(false);
cin.tie(0);
int n,p;
#ifdef OITEST
assert(argc==2);
string snum(argv[1]);
string ifilen=snum+".in";
string ofilen=snum+".out";
cout<<ifilen<<endl;
ifstream ifile(ifilen.c_str());
ifstream ofile(ofilen.c_str());
stringstream ss;
#define cin ifile
#define cout ss
#endif
cin>>n>>p;
for(int i=1;i<=n;i++){
cout<<inverse(i,p)<<endl;
#ifdef OITEST
int o,a;
ss>>o;
ofile>>a;
assert(o==a);
#endif
}
}