QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#704706 | #6519. X Equals Y | lllei# | WA | 5ms | 3704kb | C++20 | 2.7kb | 2024-11-02 20:41:34 | 2024-11-02 20:41:35 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
const int bas = 1333331;
int T;
map<int, int> mp;
pair<int, int> pii;
bool check(int l1, int r1, int l2, int r2, int d)
{
//cout<<l1<<' '<<r1<<' '<<l2<<' '<<r2<<endl;
if (l1 % d != l2 % d)
return false;
if (r1 < l2 || l1 > r2)
return false;
if (l2 <= l1 && l1 <= r2)
{
pii = {0, (l1 - l2) / d};
return true;
}
if (l2 <= r1 && r1 <= r2)
{
pii = {(r1 - l1) / d, (r1 - l2) / d};
return true;
}
if (l1 <= l2 && l2 <= r1)
{
pii = {(l2 - l1) / d, 0};
return true;
}
if (l1 <= r2 && r2 <= r1)
{
pii = {(r2 - l1) / d, (r2 - l2) / d};
return true;
}
return false;
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cin >> T;
while (T--)
{
mp.clear();
int x, y, A, B, flg = 0;
cin >> x >> y >> A >> B;
int lim = sqrt(max(x, y));
for (int i = 2; i <= min(lim, A); i++)
{
int cur = 0, t = x;
while (t)
{
cur = (cur * 1LL * bas + t % i) % mod;
t = t / i;
}
mp[cur] = i;
}
for (int i = 2; i <= min(lim, B); i++)
{
int cur = 0, t = y;
while (t)
{
cur = (cur * 1LL * bas + t % i) % mod;
t = t / i;
}
if (mp[cur])
{
cout << "YES\n";
cout << mp[cur] << ' ' << i << '\n';
flg = 1;
break;
}
}
if (flg)
continue;
if (x == y && A > x && B > y)
{
cout << "YES\n";
cout << x + 1 << ' ' << y + 1 << '\n';
continue;
}
A = min(x, A);
B = min(y, B);
//cout << A << ' ' << B << endl;
for (int l1 = A, l2 = min(y / (x / A), B), r1, r2; l1 >= 1 && l2 >= 1; l1 = r1 - 1, l2 = r2 - 1)
{
if (x / l1 >= l1)
break;
if (y / l2 >= l2)
break;
r1 = x / (x / l1 + 1) + 1;
r2 = y / (y / l2 + 1) + 1;
//cout << x / l1<<' '<<y/l2 << endl;
//cout<<l1<<' '<<l2<<endl;
if (check(x % l1, x % r1, y % l2, y % r2, x / l1))
{
cout << "YES\n";
cout << l1 - pii.first << ' ' << l2 - pii.second << '\n';
flg = 1;
break;
}
}
if (!flg)
cout << "NO\n";
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3528kb
input:
6 1 1 1000 1000 1 2 1000 1000 3 11 1000 1000 157 291 5 6 157 291 3 6 10126 114514 789 12345
output:
YES 2 2 NO YES 3 11 YES 4 5 NO YES 6 10
result:
ok correct (6 test cases)
Test #2:
score: -100
Wrong Answer
time: 5ms
memory: 3704kb
input:
1000 920 661 756 534 52 454 31 218 980 77 812 6 729 733 289 660 161 643 21 475 602 525 329 274 782 167 279 113 875 100 388 16 426 498 341 417 433 751 312 39 91 50 47 39 941 388 247 46 725 808 148 486 945 405 700 145 647 509 152 445 45 564 16 468 843 40 530 3 722 36 323 22 568 472 443 41 38 749 25 42...
output:
YES 756 497 YES 31 215 NO YES 289 291 NO YES 86 75 YES 25 10 YES 291 14 YES 341 413 YES 211 37 NO YES 235 43 NO YES 7 13 YES 107 84 YES 15 188 NO YES 19 18 YES 282 39 YES 4 7 NO YES 151 27 YES 16 5 YES 151 120 NO YES 750 346 NO YES 67 196 NO YES 66 29 NO NO YES 698 63 YES 6 5 NO YES 28 95 NO YES 307...
result:
wrong answer wrong solution, (52 in base 31) != (454 in base 215) (test case 2)