题解 | [HNOI2008]越狱
[HNOI2008]越狱
https://www.nowcoder.com/practice/33d5016548d84cbe8cdb08ca0c13c2f1
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int P=100003;
int power(int a,int b,int p){
int ans=1;
while(b>0){
if(b&1==1){
ans=ans*a%p;
}
a=a*a%p;
b=b>>1;
}
return ans;
}
int n,m;
signed main(){
ios::sync_with_stdio(false);
cin.tie(0);
cin>>m>>n;
int res=(power(m,n,P)%P-m%P*power(m-1,n-1,P)%P+P)%P;
cout<<res<<endl;
return 0;
}