QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #583540 | #9356. LRU Algorithm | shift# | WA | 476ms | 3764kb | C++20 | 1.8kb | 2024-09-22 20:28:30 | 2024-09-22 20:28:35 |
Judging History
answer
#include <bits/stdc++.h>
using i64 = long long;
const i64 mask = std::chrono::steady_clock::now().time_since_epoch().count();
i64 shift(i64 x) {
x ^= mask;
x ^= x << 13;
x ^= x >> 7;
x ^= x << 17;
x ^= mask;
return x;
}
constexpr i64 Base = 1145141;
constexpr i64 P = 998244353;
void solve() {
int n, q;
std::cin >> n >> q;
std::vector<i64> h(n + 1), a(n);
for(int i = 0; i < n; i ++ ) {
std::cin >> a[i];
}
std::vector<bool> ans(q);
std::unordered_map<i64, std::vector<int>> q1, q2;
for(int i = 0; i < q; i ++ ) {
int t;
std::cin >> t;
i64 h = 0, f = 1;
for(int j = 0; j < t; j ++ ) {
int x;
std::cin >> x;
if(x) h = (h * Base + shift(x)) % P;
else f = 0;
}
if(f) {
q1[h].push_back(i);
} else {
q2[h].push_back(i);
}
}
for(int i = 0; i < n; i ++ ) {
std::vector<bool> vis(n + 1);
i64 h = 0;
for(int j = i; j >= 0; j -- ) {
if(not vis[a[j]]) {
vis[a[j]] = true;
h = (h * Base + shift(a[j])) % P;
if(q1.count(h)) {
for(auto x : q1[h]) {
ans[x] = true;
}
q1.erase(h);
}
}
}
if(q2.count(h)) {
for(auto x : q2[h]) {
ans[x] = true;
}
q2.erase(h);
}
}
for(int i = 0; i < q; i ++ ) {
std::cout << (ans[i] ? "Yes" : "No") << '\n';
}
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int T = 1;
std::cin >> T;
while(T -- ) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3688kb
input:
1 7 5 4 3 4 2 3 1 4 1 4 2 2 3 3 3 2 1 4 4 1 3 2 4 3 4 0 0
output:
Yes No No Yes Yes
result:
ok 5 lines
Test #2:
score: -100
Wrong Answer
time: 476ms
memory: 3764kb
input:
105 50 10 23 30 34 20 27 11 21 29 12 7 21 42 45 48 8 15 6 16 19 35 16 14 29 11 31 18 22 4 45 22 14 4 13 40 43 48 27 15 15 15 15 10 15 11 31 37 34 34 50 14 1 25 2 23 6 3 29 21 11 4 12 29 18 39 5 29 21 11 27 20 6 21 10 9 3 34 14 7 49 36 36 43 50 50 35 8 12 29 21 11 27 20 34 30 9 11 27 20 34 30 23 0 0 ...
output:
No No Yes No Yes No No Yes Yes No Yes Yes Yes Yes No Yes No No No Yes Yes Yes No No No No Yes Yes Yes No No No No Yes Yes Yes No No No No No No No No Yes No No No Yes Yes Yes Yes No No Yes No No No Yes Yes Yes Yes No No Yes No No No Yes No Yes No Yes No Yes No No No Yes Yes Yes No No No No No No Yes...
result:
wrong answer 44th lines differ - expected: 'Yes', found: 'No'