QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#487923 | #9155. 集合 | PinkRabbit | 100 ✓ | 439ms | 58748kb | C++20 | 2.1kb | 2024-07-23 12:57:10 | 2024-07-23 12:57:12 |
Judging History
answer
#include <iostream>
#define PKRBT
//#undef PKRBT
#ifdef PKRBT
using std::cin;
using std::cout;
#else
#include <fstream>
std::ifstream cin("set.in");
std::ofstream cout("set.out");
#endif
#include <vector>
#include <array>
#include <random>
#include <unordered_map>
using std::vector;
#define F(i, a, b) for (int i = (a); i <= (int)(b); ++i)
#define dF(i, a, b) for (int i = (a); i >= (int)(b); --i)
#define F2(i, n) F(i, 0, (int)(n) - 1)
// ==========================================
int main() {
#ifdef PKRBT
std::ios::sync_with_stdio(false);
cin.tie(nullptr);
#endif
constexpr int K = 3;
int n, m, q;
cin >> n >> m >> q;
vector<std::array<int, 3>> A(n), B(n);
F2(i, n)
F2(k, K)
cin >> A[i][k],
--A[i][k];
F2(i, n)
F2(k, K)
cin >> B[i][k],
--B[i][k];
vector<int> lb(n); {
using ULL = unsigned long long;
vector<ULL> W(n); {
std::mt19937_64 rng(0x20240718llu);
F2(i, n)
W[i] = rng();
}
vector<ULL> hash_A(m, 0), hash_B(m, 0);
std::unordered_map<ULL, int> buk;
int cnt = 0;
auto modify = [&](ULL val, int c) {
if (buk[val])
--cnt;
buk[val] += c;
if (buk[val])
++cnt;
};
auto f = [&](int i, int c) {
F2(k, K) {
ULL &vA = hash_A[A[i][k]];
modify(vA, -1);
vA += c * W[i];
modify(vA, 1);
}
F2(k, K) {
ULL &vB = hash_B[B[i][k]];
modify(vB, 1);
vB += c * W[i];
modify(vB, -1);
}
};
int j = 0;
F2(i, n) {
f(i, 1);
while (cnt)
f(j++, -1);
lb[i] = j;
}
}
F2(q_, q) {
int l, r;
cin >> l >> r;
--l, --r;
cout << (l >= lb[r] ? "Yes\n" : "No\n");
}
}
详细
Pretests
Pretest #1:
score: 5
Accepted
time: 1ms
memory: 3628kb
Pretest #2:
score: 5
Accepted
time: 0ms
memory: 3560kb
Pretest #3:
score: 5
Accepted
time: 0ms
memory: 3792kb
Pretest #4:
score: 5
Accepted
time: 0ms
memory: 3500kb
Pretest #5:
score: 5
Accepted
time: 0ms
memory: 3832kb
Pretest #6:
score: 5
Accepted
time: 0ms
memory: 3592kb
Pretest #7:
score: 5
Accepted
time: 1ms
memory: 3648kb
Pretest #8:
score: 5
Accepted
time: 1ms
memory: 3644kb
Pretest #9:
score: 5
Accepted
time: 20ms
memory: 3672kb
Pretest #10:
score: 5
Accepted
time: 20ms
memory: 3620kb
Pretest #11:
score: 5
Accepted
time: 289ms
memory: 55328kb
Pretest #12:
score: 5
Accepted
time: 266ms
memory: 52804kb
Pretest #13:
score: 5
Accepted
time: 2ms
memory: 4260kb
Pretest #14:
score: 5
Accepted
time: 0ms
memory: 4332kb
Pretest #15:
score: 5
Accepted
time: 95ms
memory: 4084kb
Pretest #16:
score: 5
Accepted
time: 107ms
memory: 4376kb
Pretest #17:
score: 5
Accepted
time: 21ms
memory: 8564kb
Pretest #18:
score: 5
Accepted
time: 21ms
memory: 9500kb
Pretest #19:
score: 5
Accepted
time: 361ms
memory: 53640kb
Pretest #20:
score: 5
Accepted
time: 393ms
memory: 58592kb
Final Tests
Test #1:
score: 5
Accepted
time: 0ms
memory: 3632kb
Test #2:
score: 5
Accepted
time: 1ms
memory: 3844kb
Test #3:
score: 5
Accepted
time: 0ms
memory: 3608kb
Test #4:
score: 5
Accepted
time: 0ms
memory: 3800kb
Test #5:
score: 5
Accepted
time: 0ms
memory: 3612kb
Test #6:
score: 5
Accepted
time: 0ms
memory: 3564kb
Test #7:
score: 5
Accepted
time: 1ms
memory: 3612kb
Test #8:
score: 5
Accepted
time: 1ms
memory: 3580kb
Test #9:
score: 5
Accepted
time: 20ms
memory: 3592kb
Test #10:
score: 5
Accepted
time: 16ms
memory: 3540kb
Test #11:
score: 5
Accepted
time: 268ms
memory: 53084kb
Test #12:
score: 5
Accepted
time: 336ms
memory: 51088kb
Test #13:
score: 5
Accepted
time: 3ms
memory: 3960kb
Test #14:
score: 5
Accepted
time: 2ms
memory: 4272kb
Test #15:
score: 5
Accepted
time: 106ms
memory: 4104kb
Test #16:
score: 5
Accepted
time: 100ms
memory: 4288kb
Test #17:
score: 5
Accepted
time: 26ms
memory: 8596kb
Test #18:
score: 5
Accepted
time: 21ms
memory: 9500kb
Test #19:
score: 5
Accepted
time: 439ms
memory: 52636kb
Test #20:
score: 5
Accepted
time: 401ms
memory: 58748kb
Extra Test:
score: 0
Extra Test Passed