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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 |
---|---|---|---|---|---|---|---|---|---|
#410062 | #8338. Quad Kingdoms Chess | bigJ | WA | 38ms | 4392kb | C++20 | 3.5kb | 2024-05-13 09:27:12 | 2024-05-13 09:27:12 |
Judging History
answer
#include <bits/stdc++.h>
constexpr bool isprime(int n) {
if (n <= 1) {
return false;
}
for (int i = 2; i * i <= n; i++) {
if (n % i == 0) {
return false;
}
}
return true;
}
constexpr int findPrime(int n) {
while (!isprime(n)) {
n++;
}
return n;
}
std::mt19937 rnd(std::chrono::high_resolution_clock::now().time_since_epoch().count());
const int P = findPrime(rnd() % 900000000 + 100000000);
const int B = rnd() % P;
constexpr int N = 100000;
int p[N + 1];
template <class Info>
struct SegmentTree {
int n;
std::vector<Info> tr;
std::vector<int> seq;
template<class T>
SegmentTree(std::vector<T> init_) {
init(init_);
}
template<class T>
void init(std::vector<T> init_) {
n = init_.size();
tr.assign(4 << std::__lg(n), Info());
auto build = [&](auto&& self, int p, int l, int r) {
if (r - l == 1) {
tr[p] = init_[l];
return;
}
int m = std::midpoint(l, r);
self(self, 2 * p, l, m);
self(self, 2 * p + 1, m, r);
pull(p, m, r);
};
build(build, 1, 0, n);
}
void pull(int p, int bl, int br) {
tr[p] = merge(tr[2 * p], tr[2 * p + 1], *this, 2 * p + 1, bl, br);
}
void modify(int p, int l, int r, int x, const Info& v) {
if (r - l == 1) {
tr[p] = v;
return;
}
int m = std::midpoint(l, r);
if (x < m) {
modify(2 * p, l, m, x, v);
} else {
modify(2 * p + 1, m, r, x, v);
}
return pull(p, m, r);
}
void modify(int x, const Info& v) {
return modify(1, 0, n, x, v);
}
};
struct Info {
int max;
int hash;
int siz;
Info(int max, int hash, int siz) :max(max), hash(hash), siz(siz) {}
Info(int v = 0) : max(v), hash(1LL * v * B % P), siz(1) {}
};
Info operator+(const Info& a, const Info& b) {
return Info{ std::max(a.max, b.max), (a.hash + 1LL * b.hash * p[a.siz] % P) % P, a.siz + b.siz };
}
Info merge(const Info& a, const Info& b, SegmentTree<Info>& seg, int p, int l, int r) {
if (a.max == 0) {
return b;
} else if (b.max == 0) {
return a;
}
if (a.max > b.max) {
return a;
}
if (r - l == 1) {
return a + b;
}
int m = std::midpoint(l, r);
Info c = a;
if (seg.tr[2 * p].max == b.max) {
c = merge(c, seg.tr[2 * p], seg, 2 * p, l, m);
} else {
c = merge(c, seg.tr[2 * p + 1], seg, 2 * p + 1, m, r);
}
return c;
}
int main() {
p[0] = 1;
for (int i = 1; i <= N; i++) {
p[i] = (1LL * p[i - 1] * B) % P;
}
int n1;
scanf("%d", &n1);
std::vector<int> a(n1);
for (int i = n1 - 1; i >= 0; i--) {
scanf("%d", &a[i]);
}
int n2;
scanf("%d", &n2);
std::vector<int> b(n2);
for (int i = n2 - 1; i >= 0; i--) {
scanf("%d", &b[i]);
}
SegmentTree<Info> sega(a);
SegmentTree<Info> segb(b);
int m;
for (scanf("%d", &m); m; m--) {
int o, x, y;
scanf("%d%d%d", &o, &x, &y);
if (o == 1) {
sega.modify(n1 - x, y);
} else {
segb.modify(n2 - x, y);
}
puts(sega.tr[1].hash == segb.tr[1].hash ? "YES" : "NO");
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 4388kb
input:
5 1 2 3 4 5 5 5 4 3 2 1 8 1 1 5 1 4 2 1 2 4 1 5 1 1 5 5 2 1 4 2 3 5 2 5 5
output:
NO NO NO YES NO NO NO YES
result:
ok 8 tokens
Test #2:
score: 0
Accepted
time: 33ms
memory: 4356kb
input:
1 2 6 2 1 1 1 1 1 200000 2 6 2 1 1 1 1 1 1 1 1 2 2 1 1 1 1 2 1 1 1 2 4 1 2 1 2 1 1 1 1 1 2 2 5 1 1 1 1 1 1 2 1 1 1 2 6 1 1 1 2 1 1 2 1 1 2 2 3 1 1 1 1 2 1 1 2 6 2 1 1 2 2 4 1 1 1 2 2 6 1 1 1 2 1 1 1 2 5 2 2 6 2 1 1 1 2 4 2 2 5 2 2 6 2 1 1 1 2 5 1 2 6 2 1 1 2 1 1 1 1 1 1 2 4 1 1 1 2 1 1 2 1 1 2 2 3 2...
output:
NO NO NO NO YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO N...
result:
ok 200000 tokens
Test #3:
score: 0
Accepted
time: 28ms
memory: 4392kb
input:
6 2 1 1 2 1 2 1 1 200000 2 1 1 1 1 2 1 1 1 2 1 2 2 1 1 2 1 1 2 1 2 2 1 2 1 1 2 1 3 1 1 6 2 1 5 2 1 4 2 1 3 1 2 1 2 1 4 2 1 4 2 2 1 2 2 1 2 1 3 1 1 6 1 1 1 2 2 1 1 1 6 1 1 3 1 1 5 2 1 6 2 1 5 2 2 1 2 1 2 1 1 5 2 2 1 1 2 1 1 1 6 1 2 1 2 2 1 1 1 3 2 2 1 1 1 6 1 1 4 2 1 2 1 1 1 1 2 1 1 1 2 1 1 6 2 1 6 2...
output:
NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO ...
result:
ok 200000 tokens
Test #4:
score: -100
Wrong Answer
time: 38ms
memory: 4068kb
input:
6 1 3 1 2 1 2 6 2 1 3 3 3 1 200000 2 4 2 1 2 1 1 6 2 2 3 2 1 1 1 1 6 2 1 6 2 1 3 2 2 6 1 2 4 3 1 1 2 2 5 2 2 6 2 2 3 1 1 4 3 1 3 1 2 5 2 2 4 2 2 1 3 1 1 1 2 2 2 2 4 2 1 5 3 1 6 3 2 6 3 1 5 3 2 5 3 2 4 1 2 4 2 1 1 2 1 6 1 2 6 1 1 2 3 1 1 3 1 1 1 2 6 3 2 4 1 1 4 2 2 2 1 1 3 1 1 1 3 1 1 3 1 4 3 1 3 3 2...
output:
NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO YES YES NO NO NO NO NO NO YES YES YES NO NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO ...
result:
wrong answer 15th words differ - expected: 'NO', found: 'YES'