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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
#409779#8338. Quad Kingdoms ChessbigJWA 51ms4256kbC++234.1kb2024-05-12 18:26:332024-05-12 18:26:34

Judging History

你现在查看的是最新测评结果

  • [2024-05-12 18:26:34]
  • 评测
  • 测评结果:WA
  • 用时:51ms
  • 内存:4256kb
  • [2024-05-12 18:26:33]
  • 提交

answer

#include <bits/stdc++.h>

using i64 = long long;

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 = 10;

constexpr int N = 100000;
int p[N + 1];

template <class Info>
struct SegmentTree {
#define m (l + r) / 2
    int n;
    std::vector<Info> tr;
    SegmentTree() : n(0) {}
    SegmentTree(int n_, Info v_ = Info()) {
        init(n_, v_);
    }
    template<class T>
    SegmentTree(std::vector<T> init_) {
        init(init_);
    }
    void init(int n_, Info v_ = Info()) {
        init(std::vector(n_, v_));
    }
    template<class T>
    void init(std::vector<T> init_) {
        n = init_.size();
        tr.assign(4 << std::__lg(n), Info());
        std::function<void(int, int, int)> build = [&](int p, int l, int r) {
            if (r - l == 1) {
                tr[p] = init_[l];
                tr[p].l = l;
                tr[p].r = r;
                return;
            }
            build(2 * p, l, m);
            build(2 * p + 1, m, r);
            pull(p);
        };
        build(1, 0, n);
    }

    void pull(int p) {
        tr[p] = merge(tr[2 * p], tr[2 * p + 1], *this);
    }

    void modify(int p, int l, int r, int x, const Info& v) {
        if (r - l == 1) {
            tr[p] = v;
            tr[p].l = l;
            tr[p].r = r;
            return;
        }
        if (x < m) {
            modify(2 * p, l, m, x, v);
        } else {
            modify(2 * p + 1, m, r, x, v);
        }
        pull(p);
    }
    void modify(int x, const Info& v) {
        modify(1, 0, n, x, v);
    }

    Info rangeQuery(int p, int l, int r, int x, int y) {
        if (l >= y || r <= x) {
            return Info();
        }
        if (l >= x && r <= y) {
            return tr[p];
        }
        return merge(rangeQuery(2 * p, l, m, x, y), rangeQuery(2 * p + 1, m, r, x, y), *this);
    }

    Info rangeQuery(int l, int r) {
        return rangeQuery(1, 0, n, l, r);
    }
#undef m
};

struct Info {
    int l;
    int r;
    int max;
    int premin;
    int hash;
    int siz;
    Info() : l(-1), r(-1), max(0), premin(N + 1), hash(0), siz(1) {}
    Info(int v) : l(0), r(0), max(v), premin(v), hash(1LL * v * B % P), siz(1) {}
};

Info merge(const Info& a, const Info& b, SegmentTree<Info>& seg) {
    if (a.l == -1) {
        return b;
    } else if (b.l == -1) {
        return a;
    }
    Info c = a;
    c.r = b.r;
    if (c.max > b.max) {
        return c;
    }
    int pos = *std::ranges::partition_point(std::views::iota(b.l, b.r), [&](int m) {
        return seg.rangeQuery(m, b.r).premin < c.max;
    });
    Info d = seg.rangeQuery(pos, b.r);
    if (b.premin == c.max) {
        d = b;
    }
    c.max = d.max;
    c.siz += d.siz;
    c.hash = (c.hash + d.hash * p[a.siz] % P) % P;
    return c;
}

int main() {
    p[0] = 1;
    for (int i = 1; i <= N; i++) {
        p[i] = (1LL * p[i - 1] * B) % P;
    }

    int n1, n2, m;

    scanf("%d", &n1);
    std::vector<int> a(n1);
    for (int i = 0; i < n1; i++) {
        scanf("%d", &a[i]);
    }

    scanf("%d", &n2);
    std::vector<int> b(n2);
    for (int i = 0; i < n2; i++) {
        scanf("%d", &b[i]);
    }

    std::ranges::reverse(a);
    std::ranges::reverse(b);

    SegmentTree<Info> sega(a);
    SegmentTree<Info> segb(b);

    for (scanf("%d", &m); m; m--) {
        int o, x, y;
        scanf("%d%d%d", &o, &x, &y);
        if (o == 1) {
            a.end()[-x] = y;
            sega.modify(n1 - x, y);
        } else {
            b.end()[-x] = y;
            segb.modify(n2 - x, y);
        }
        puts(sega.tr[1].hash == segb.tr[1].hash ? "YES" : "NO");
    }

    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 4084kb

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: 39ms
memory: 4256kb

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: 40ms
memory: 4092kb

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: 51ms
memory: 4048kb

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
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
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
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
N...

result:

wrong answer 241st words differ - expected: 'YES', found: 'NO'