QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#492825 | #9155. 集合 | zfs732 | 100 ✓ | 543ms | 58960kb | C++23 | 1.7kb | 2024-07-26 16:25:21 | 2024-07-26 16:25:22 |
Judging History
answer
/*
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*/
#include <bits/stdc++.h>
std::mt19937_64 engine(
std::chrono::steady_clock::now().time_since_epoch().count());
int main() {
#ifdef LOCAL
freopen("task.in", "r", stdin);
freopen("task.out", "w", stdout);
freopen("task.err", "w", stderr);
#endif
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n, m, q, bad = 0;
std::cin >> n >> m >> q;
std::vector<std::array<int, 3>> a(n), b(n);
for (auto &i: a) for (auto &j: i) std::cin >> j, j--;
for (auto &i: b) for (auto &j: i) std::cin >> j, j--;
std::vector<unsigned long long> val(n), A(m), B(m);
std::unordered_map<unsigned long long, int> hash;
for (int i = 0; i < n; i++) val[i] = engine();
auto Insert = [&](auto val, int num) {
bad -= hash[val] != 0;
hash[val] += num;
bad += hash[val] != 0;
};
auto Toggle = [&](int x) {
if (x == n) return;
for (int i = 0; i < 3; i++) {
Insert(A[a[x][i]], -1);
Insert(B[b[x][i]], +1);
A[a[x][i]] ^= val[x];
B[b[x][i]] ^= val[x];
Insert(A[a[x][i]], +1);
Insert(B[b[x][i]], -1);
}
};
std::vector<int> pr(n);
for (int l = 0, r = -1; l < n; Toggle(l++)) {
while (r < n && bad == 0)
Toggle(++r);
pr[l] = r;
}
while (q--) {
int l, r;
std::cin >> l >> r, l--, r--;
std::cout << (pr[l] <= r ? "No\n" : "Yes\n");
}
return 0;
}
Details
Pretests
Pretest #1:
score: 5
Accepted
time: 0ms
memory: 3840kb
Pretest #2:
score: 5
Accepted
time: 0ms
memory: 3560kb
Pretest #3:
score: 5
Accepted
time: 0ms
memory: 3844kb
Pretest #4:
score: 5
Accepted
time: 0ms
memory: 3844kb
Pretest #5:
score: 5
Accepted
time: 0ms
memory: 3568kb
Pretest #6:
score: 5
Accepted
time: 0ms
memory: 3604kb
Pretest #7:
score: 5
Accepted
time: 0ms
memory: 3652kb
Pretest #8:
score: 5
Accepted
time: 0ms
memory: 3640kb
Pretest #9:
score: 5
Accepted
time: 19ms
memory: 3832kb
Pretest #10:
score: 5
Accepted
time: 20ms
memory: 3668kb
Pretest #11:
score: 5
Accepted
time: 455ms
memory: 55268kb
Pretest #12:
score: 5
Accepted
time: 441ms
memory: 52892kb
Pretest #13:
score: 5
Accepted
time: 0ms
memory: 4084kb
Pretest #14:
score: 5
Accepted
time: 2ms
memory: 4092kb
Pretest #15:
score: 5
Accepted
time: 99ms
memory: 4144kb
Pretest #16:
score: 5
Accepted
time: 103ms
memory: 4096kb
Pretest #17:
score: 5
Accepted
time: 24ms
memory: 8664kb
Pretest #18:
score: 5
Accepted
time: 20ms
memory: 9560kb
Pretest #19:
score: 5
Accepted
time: 543ms
memory: 53716kb
Pretest #20:
score: 5
Accepted
time: 479ms
memory: 58676kb
Final Tests
Test #1:
score: 5
Accepted
time: 0ms
memory: 3600kb
Test #2:
score: 5
Accepted
time: 0ms
memory: 3612kb
Test #3:
score: 5
Accepted
time: 0ms
memory: 3604kb
Test #4:
score: 5
Accepted
time: 0ms
memory: 3680kb
Test #5:
score: 5
Accepted
time: 0ms
memory: 3564kb
Test #6:
score: 5
Accepted
time: 0ms
memory: 3676kb
Test #7:
score: 5
Accepted
time: 1ms
memory: 3580kb
Test #8:
score: 5
Accepted
time: 1ms
memory: 3660kb
Test #9:
score: 5
Accepted
time: 15ms
memory: 3608kb
Test #10:
score: 5
Accepted
time: 19ms
memory: 3712kb
Test #11:
score: 5
Accepted
time: 344ms
memory: 53260kb
Test #12:
score: 5
Accepted
time: 383ms
memory: 51100kb
Test #13:
score: 5
Accepted
time: 3ms
memory: 3964kb
Test #14:
score: 5
Accepted
time: 2ms
memory: 4348kb
Test #15:
score: 5
Accepted
time: 105ms
memory: 4088kb
Test #16:
score: 5
Accepted
time: 105ms
memory: 4200kb
Test #17:
score: 5
Accepted
time: 19ms
memory: 8608kb
Test #18:
score: 5
Accepted
time: 26ms
memory: 9700kb
Test #19:
score: 5
Accepted
time: 522ms
memory: 52764kb
Test #20:
score: 5
Accepted
time: 514ms
memory: 58960kb
Extra Test:
score: 0
Extra Test Passed