#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
using namespace std;
int sq(int a, int k){
if(k == 0) return 1;
if(k == 1) return a;
int ans = 1;
if(k&1) ans = a;
return ((ans * sq(a, k/2))%(a+1) * sq(a, k/2) ) % (a+1);
}
int powk(int a, int k){
if(k == 0) return a;
return sq(a, powk(a,k-1))%(a+1);
}
int main(){
int a,k;
cin >> a >> k;
cout<<powk(a, k)<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
1672 KB |
Output is correct |
2 |
Incorrect |
0 ms |
1672 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |