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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#784496 | #8338. Quad Kingdoms Chess | Zeoy | RE | 0ms | 0kb | C++20 | 2.2kb | 2024-11-26 15:10:19 | 2024-11-26 15:10:22 |
answer
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
using ll = long long;
using ull = unsigned long long;
const int N = 100010;
mt19937_64 rnd(time(0));
int n1, n2, q, a[N], b[N];
ull hs[N];
struct SegmentTree {
int mx[N << 2];
ull shs[N << 2]; // sum of hs
#define lson (id << 1)
#define rson (id << 1 | 1)
#define mid ((l + r) >> 1)
ull qry(int id, int l, int r, int k) {
if (mx[id] < k) return 0ULL;
if (l == r) return (mx[id] >= k ? shs[id] : 0ULL);
if (mx[rson] >= k) return qry(rson, mid + 1, r, k) + shs[id] - shs[rson];
else qry(lson, l, mid, k);
}
void up(int id, int l, int r) {
mx[id] = max(mx[lson], mx[rson]);
shs[id] = qry(lson, l, mid, mx[rson]) + shs[rson];
}
void build(int id, int l, int r, int *a) {
if (l == r) {
mx[id] = a[l];
shs[id] = hs[a[l]];
return;
}
build(lson, l, mid, a), build(rson, mid + 1, r, a);
up(id, l, r);
}
void modify(int id, int l, int r, int x, int v) {
if (l == r) {
mx[id] = v;
shs[id] = hs[v];
return;
}
if (x <= mid) modify(lson, l, mid, x, v);
else modify(rson, mid + 1, r, x, v);
up(id, l, r);
}
#undef lson
#undef rson
#undef mid
} T[2];
void solve() {
for (int i = 1; i <= 100000; ++i) hs[i] = rnd();
cin >> n1;
for (int i = 1; i <= n1; ++i) {
cin >> a[i];
}
cin >> n2;
for (int i = 1; i <= n2; ++i) {
cin >> b[i];
}
T[0].build(1, 1, n1, a);
T[1].build(1, 1, n2, b);
cin >> q;
while (q--) {
int op, x, y; cin >> op >> x >> y;
if (op == 1) {
T[0].modify(1, 1, n1, x, y);
} else {
T[1].modify(1, 1, n2, x, y);
}
if (T[0].shs[1] == T[1].shs[1]) {
cout << "YES\n";
} else {
cout << "NO\n";
}
}
}
signed main(void) {
ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
int Test = 1;
// cin >> Test;
while (Test--) solve();
return 0;
}
Details
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Test #1:
score: 0
Runtime Error
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