QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #512369 | #9167. Coprime Array | ucup-team3723# | WA | 3ms | 7120kb | C++20 | 1.4kb | 2024-08-10 14:19:03 | 2024-08-10 14:19:03 |
Judging History
answer
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
const int ma = 1e6;
int s, x;
cin >> s >> x;
if (__gcd(s, x) == 1)
{
cout << "1\n";
cout << s << endl;
}
else
{
vector<int> isp(ma + 1, 1);
int tmpx = x;
isp[0] = isp[1] = 0;
for (int i = 2; i * i <= x; ++i)
{
if (x % i) continue;
while (x % i == 0) x /= i;
for (int j = 1; i * j <= ma; ++j) isp[i * j] = 0;
}
if (x != 1) for (int i = 1; i * x <= ma; ++i) isp[i * x] = 0;
vector<int> ans;
if (s % 2)
{
ans.push_back(1);
--s;
}
x = tmpx;
isp[1] = 1;
for (int i = 1; i <= ma; ++i)
{
if (isp[i] == 1)
{
if (s - i != 0 && __gcd((int)abs(s - i), x) == 1)
{
ans.push_back(i);
ans.push_back(s - i);
break;
}
if (s + i != 0 && __gcd((int)abs(s + i), x) == 1)
{
ans.push_back(-i);
ans.push_back(s + i);
break;
}
}
}
cout << ans.size() << endl;
for (auto v : ans) cout << v << ' ';
cout << endl;
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 7056kb
input:
9 6
output:
3 1 1 7
result:
ok Correct
Test #2:
score: 0
Accepted
time: 2ms
memory: 6928kb
input:
14 34
output:
2 1 13
result:
ok Correct
Test #3:
score: 0
Accepted
time: 3ms
memory: 7056kb
input:
1000000000 223092870
output:
2 29 999999971
result:
ok Correct
Test #4:
score: 0
Accepted
time: 2ms
memory: 7120kb
input:
2 1000000000
output:
2 1 1
result:
ok Correct
Test #5:
score: 0
Accepted
time: 2ms
memory: 6964kb
input:
649557664 933437700
output:
2 -7 649557671
result:
ok Correct
Test #6:
score: 0
Accepted
time: 2ms
memory: 6912kb
input:
33396678 777360870
output:
2 1 33396677
result:
ok Correct
Test #7:
score: 0
Accepted
time: 2ms
memory: 7056kb
input:
48205845 903124530
output:
3 1 -23 48205867
result:
ok Correct
Test #8:
score: 0
Accepted
time: 2ms
memory: 6928kb
input:
251037078 505905400
output:
2 1 251037077
result:
ok Correct
Test #9:
score: 0
Accepted
time: 2ms
memory: 7056kb
input:
30022920 172746860
output:
2 1 30022919
result:
ok Correct
Test #10:
score: 0
Accepted
time: 2ms
memory: 6928kb
input:
63639298 808058790
output:
2 -1 63639299
result:
ok Correct
Test #11:
score: 0
Accepted
time: 3ms
memory: 7120kb
input:
76579017 362768406
output:
3 1 1 76579015
result:
ok Correct
Test #12:
score: 0
Accepted
time: 2ms
memory: 7056kb
input:
40423669 121437778
output:
3 1 1 40423667
result:
ok Correct
Test #13:
score: -100
Wrong Answer
time: 2ms
memory: 7052kb
input:
449277309 720915195
output:
3 1 1 449277307
result:
wrong answer Jury's answer is better than participant's