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답안 #1095569

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1095569 2024-10-02T14:58:02 Z susanthenerd Sails (IOI07_sails) C++17
0 / 100
 1000 ms 7260 KB 
#include <iostream>
#include <array>
#include <vector>
#include <algorithm>

using namespace std;
using ll = long long;
constexpr ll VMAX = 1e5 + 1;

array<pair<ll, ll>, VMAX * 4> aint;

pair<ll, ll> combine(pair<ll, ll> a, pair<ll, ll> b) {
    if (a.first == b.first) {
        a.second += b.second;
        return a;
    }

    return min(a, b);
}

void build(ll nod, ll st, ll dr) {
    if (st == dr) {
        aint[nod] = {0, 1};
        return;
    }

    ll mij = (st + dr) / 2;
    build(nod * 2, st, mij);
    build(nod * 2 + 1, mij + 1, dr);
    aint[nod] = combine(aint[nod * 2], aint[nod * 2 + 1]);
}

void update(ll x, ll y, ll &cnt, ll val, ll nod, ll st, ll dr) {
    if (dr < x || y < st || cnt == 0) return;
    if (st == dr) {
        aint[nod].first += val;
        --cnt;
        return;
    }

    ll mij = (st + dr) / 2;
    if (x <= st && dr <= y) {
        if (aint[nod].first == aint[nod * 2 + 1].first)
            update(x, y, cnt, val, nod * 2 + 1, mij + 1, dr);
        if (aint[nod].first == aint[nod * 2].first)
            update(x, y, cnt, val, nod * 2, st, mij);
        aint[nod] = combine(aint[nod * 2], aint[nod * 2 + 1]);

        return;
    }

    update(x, y, cnt, val, nod * 2 + 1, mij + 1, dr);
    update(x, y, cnt, val, nod * 2, st, mij);
    aint[nod] = combine(aint[nod * 2], aint[nod * 2 + 1]);
}

ll query(ll nod, ll st, ll dr) {
    if (st == dr) {
        return aint[nod].first * (aint[nod].first - 1) / 2LL;
    }

    ll mij = (st + dr) / 2;
    ll q_st = query(nod * 2, st, mij);
    ll q_dr = query(nod * 2 + 1, mij + 1, dr);

    return q_st + q_dr;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);


    ll n;
    cin >> n;
    build(1, 1, VMAX - 1);
    vector<pair<ll, ll> > v(n);
    for (auto &[k, h]: v)
        cin >> h >> k;

    sort(v.begin(), v.end());


    for (auto &[k, h]: v) {
        while (k) {
            update(1, h, k, 1, 1, 1, VMAX - 1);
        }
    }

    cout << query(1, 1, VMAX - 1);
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4696 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4444 KB Output is correct
2 Incorrect 2 ms 4444 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 4444 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 4444 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 41 ms 4444 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 672 ms 4700 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1055 ms 5212 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1055 ms 5724 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1042 ms 6492 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1033 ms 7000 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1038 ms 7260 KB Time limit exceeded
2 Halted 0 ms 0 KB -