QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#643581 | #7735. Primitive Root | cy325 | WA | 33ms | 3672kb | C++20 | 1.5kb | 2024-10-15 22:04:11 | 2024-10-15 22:04:12 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
void solve(){
int p,m;
cin>>p>>m;
if(p==1){
cout<<m<<endl;
return;
}else {
int idx;
if(p%2==0){ idx= m / p;}
if(m==0){
if(((p-1)^(1))<=m){
cout<<1<<endl;
return;
}else{
cout<<0<<endl;
return;
}
}
else { idx = m / p + 1; }
if(((p-1)^(idx*p+1))<=m){
if(((p-1)^((idx-1)*p+1))>m){
cout<<idx<<endl;
return;
}
if(((p-1)^((idx+1)*p+1))>m){
cout<<idx<<endl;
return;
}
cout<<idx+1<<endl;
return;
}else{
cout<<idx<<endl;
// return;
}
}
// int i=0;
// int cnt=0;
// int last=p;
// vector<int> a;
// while(1){
// int x=(p-1)^(i*p+1);
//// if(last>m&&x>m)break;
// if(last>m*2024)break;
// if(x<=m) {
// cnt++;a.push_back(x);
// }
// cout<<"idx:"<<i<<" x:"<<x<<" ";
// last=x;
// i++;
// }
// cout<<endl;
// for(int i=0;i<a.size();i++){cout<<a[i]<<" ";}
// cout<<a.size()<<endl;
// cout<<endl;
}
signed main() {
std::ios::sync_with_stdio(false);
int t;
cin>>t;
while(t--)solve();
// solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3552kb
input:
3 2 0 7 11 1145141 998244353
output:
1 2 872
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 33ms
memory: 3672kb
input:
47595 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 20 2 21 2 22 2 23 2 24 2 25 2 26 2 27 2 28 2 29 2 30 2 31 2 32 2 33 2 34 2 35 2 36 2 37 2 38 2 39 2 40 2 41 2 42 2 43 2 44 2 45 2 46 2 47 2 48 2 49 2 50 2 51 2 52 2 53 2 54 2 55 2 56 2 57 2 58 2 59 2 60...
output:
1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 ...
result:
wrong answer 503rd lines differ - expected: '0', found: '1'