oj.uz

답안 #1065615

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1065615 2024-08-19T10:01:47 Z phoenix 푸드 코트 (JOI21_foodcourt) C++17
24 / 100
 149 ms 40276 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = (1 << 18);

#define cerr if (false) cout

struct node {
    ll sum = 0;
    ll pre = 0;
};
node tr[2 * N];

node combine(node a, node b) {
    node res;
    res.sum = a.sum + b.sum;
    res.pre = min(a.pre, a.sum + b.pre);
    return res;
}

void update(int pos, ll val) {
    // cerr << "upd: " << pos << ' ' << val << '\n';
    tr[pos += N] = {val, min(0ll, val)};
    for (pos >>= 1; pos; pos >>= 1) 
        tr[pos] = combine(tr[2 * pos], tr[2 * pos + 1]);
    // cerr << "tree: " << tr[1].sum << ' ' << tr[1].pre << '\n';
}
node get(int ql, int qr, int l = 0, int r = N - 1, int v = 1) {
    if (r < ql || l > qr)
        return node();
    if (ql <= l && r <= qr) 
        return tr[v];
    int m = (l + r) / 2;
    return combine(get(ql, qr, l, m, 2 * v), get(ql, qr, m + 1, r, 2 * v + 1)); 
}

ll cnt[2 * N];
void add(int v, ll a) {
    for (cnt[v += N] += a; v > 1; v >>= 1)
        cnt[v >> 1] = cnt[v] + cnt[v^1];
}
ll count(int ql, int qr, int l = 0, int r = N - 1, int v = 1) {
    if (r < ql || l > qr)   
        return 0;
    if (ql <= l && r <= qr)
        return cnt[v];
    int m = (l + r) / 2;
    return count(ql, qr, l, m, 2 * v) + count(ql, qr, m + 1, r, 2 * v + 1);
}

int n, m, q;

vector<pair<int, ll>> join[N][2];
vector<pair<int, ll>> leave[N][2];
vector<pair<int, ll>> service[N];  

map<int, int> timeToGroup;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m >> q;
    for (int t = 1; t <= q; t++) {
        int type;
        cin >> type;
        if (type == 1) {
            int l, r, k, c;
            cin >> l >> r >> c >> k;
            timeToGroup[t] = c;
            join[l][0].push_back({t, k});
            join[r][1].push_back({t, k});
        }
        if (type == 2) {
            int l, r, k;
            cin >> l >> r >> k;
            leave[l][0].push_back({t, k});
            leave[r][1].push_back({t, k});
        }
        if (type == 3) {
            int a, b;
            cin >> a >> b;
            service[a].push_back({t, b});
        }
    }
    
    vector<int> res(q + 1, -2);

    for (int i = 1; i <= n; i++) {
        for (auto o : join[i][0]) {
            int t = o.first, k = o.second;
            update(t, +k);
            add(t, +k);
        }
        for (auto o : leave[i][0]) {
            int t = o.first, k = o.second;
            update(t, -k);
        }
        for (auto [t, b] : service[i]) {
            ll num = get(1, t).sum - get(1, t).pre;
            if (num < b) {
                res[t] = 0;
                continue;
            }
            int l = 0, r = t + 1;
            while (r - l > 1) {
                int m = (l + r) / 2;
                if (count(m, t) >= num - b + 1)
                    l = m;
                else 
                    r = m;
            }
            res[t] = timeToGroup[l];
        }
        for (auto o : join[i][1]) {
            int t = o.first, k = o.second;
            update(t, 0);
            add(t, -k);
        }
        for (auto o : leave[i][1]) {
            int t = o.first, k = o.second;
            update(t, 0);
        }
    }
    for (int i = 1; i <= q; i++) {
        if (res[i] != -2)
            cout << res[i] << '\n';
    }
}

Compilation message

foodcourt.cpp: In function 'int main()':
foodcourt.cpp:122:30: warning: unused variable 'k' [-Wunused-variable]
  122 |             int t = o.first, k = o.second;
      |                              ^

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31324 KB Output is correct
2 Correct 14 ms 31324 KB Output is correct
3 Correct 14 ms 31380 KB Output is correct
4 Correct 14 ms 31580 KB Output is correct
5 Correct 14 ms 31320 KB Output is correct
6 Correct 14 ms 31320 KB Output is correct
7 Correct 15 ms 31324 KB Output is correct
8 Correct 14 ms 31580 KB Output is correct
9 Correct 14 ms 31508 KB Output is correct
10 Correct 14 ms 31324 KB Output is correct
11 Correct 14 ms 31324 KB Output is correct
12 Correct 14 ms 31576 KB Output is correct
13 Correct 14 ms 31324 KB Output is correct
14 Correct 15 ms 31324 KB Output is correct
15 Correct 14 ms 31324 KB Output is correct
16 Correct 14 ms 31324 KB Output is correct
17 Correct 15 ms 31324 KB Output is correct
18 Correct 15 ms 31384 KB Output is correct
19 Correct 15 ms 31580 KB Output is correct
20 Correct 16 ms 31580 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31324 KB Output is correct
2 Correct 14 ms 31324 KB Output is correct
3 Correct 14 ms 31380 KB Output is correct
4 Correct 14 ms 31580 KB Output is correct
5 Correct 14 ms 31320 KB Output is correct
6 Correct 14 ms 31320 KB Output is correct
7 Correct 15 ms 31324 KB Output is correct
8 Correct 14 ms 31580 KB Output is correct
9 Correct 14 ms 31508 KB Output is correct
10 Correct 14 ms 31324 KB Output is correct
11 Correct 14 ms 31324 KB Output is correct
12 Correct 14 ms 31576 KB Output is correct
13 Correct 14 ms 31324 KB Output is correct
14 Correct 15 ms 31324 KB Output is correct
15 Correct 14 ms 31324 KB Output is correct
16 Correct 14 ms 31324 KB Output is correct
17 Correct 15 ms 31324 KB Output is correct
18 Correct 15 ms 31384 KB Output is correct
19 Correct 15 ms 31580 KB Output is correct
20 Correct 16 ms 31580 KB Output is correct
21 Incorrect 15 ms 31324 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 38736 KB Output is correct
2 Correct 64 ms 39400 KB Output is correct
3 Correct 69 ms 38660 KB Output is correct
4 Correct 67 ms 38740 KB Output is correct
5 Correct 65 ms 39460 KB Output is correct
6 Correct 66 ms 39248 KB Output is correct
7 Correct 54 ms 36920 KB Output is correct
8 Correct 57 ms 37044 KB Output is correct
9 Correct 58 ms 38484 KB Output is correct
10 Correct 60 ms 38992 KB Output is correct
11 Correct 63 ms 38740 KB Output is correct
12 Correct 61 ms 38992 KB Output is correct
13 Correct 70 ms 38420 KB Output is correct
14 Correct 80 ms 39248 KB Output is correct
15 Correct 72 ms 40020 KB Output is correct
16 Correct 68 ms 40272 KB Output is correct

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 114 ms 36088 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31324 KB Output is correct
2 Correct 14 ms 31324 KB Output is correct
3 Correct 14 ms 31380 KB Output is correct
4 Correct 14 ms 31580 KB Output is correct
5 Correct 14 ms 31320 KB Output is correct
6 Correct 14 ms 31320 KB Output is correct
7 Correct 15 ms 31324 KB Output is correct
8 Correct 14 ms 31580 KB Output is correct
9 Correct 14 ms 31508 KB Output is correct
10 Correct 14 ms 31324 KB Output is correct
11 Correct 14 ms 31324 KB Output is correct
12 Correct 14 ms 31576 KB Output is correct
13 Correct 14 ms 31324 KB Output is correct
14 Correct 15 ms 31324 KB Output is correct
15 Correct 14 ms 31324 KB Output is correct
16 Correct 14 ms 31324 KB Output is correct
17 Correct 15 ms 31324 KB Output is correct
18 Correct 15 ms 31384 KB Output is correct
19 Correct 15 ms 31580 KB Output is correct
20 Correct 16 ms 31580 KB Output is correct
21 Correct 64 ms 38736 KB Output is correct
22 Correct 64 ms 39400 KB Output is correct
23 Correct 69 ms 38660 KB Output is correct
24 Correct 67 ms 38740 KB Output is correct
25 Correct 65 ms 39460 KB Output is correct
26 Correct 66 ms 39248 KB Output is correct
27 Correct 54 ms 36920 KB Output is correct
28 Correct 57 ms 37044 KB Output is correct
29 Correct 58 ms 38484 KB Output is correct
30 Correct 60 ms 38992 KB Output is correct
31 Correct 63 ms 38740 KB Output is correct
32 Correct 61 ms 38992 KB Output is correct
33 Correct 70 ms 38420 KB Output is correct
34 Correct 80 ms 39248 KB Output is correct
35 Correct 72 ms 40020 KB Output is correct
36 Correct 68 ms 40272 KB Output is correct
37 Correct 89 ms 37972 KB Output is correct
38 Correct 73 ms 37716 KB Output is correct
39 Correct 56 ms 36392 KB Output is correct
40 Correct 64 ms 37180 KB Output is correct
41 Correct 90 ms 38456 KB Output is correct
42 Correct 92 ms 38992 KB Output is correct
43 Correct 90 ms 39000 KB Output is correct
44 Correct 90 ms 38712 KB Output is correct
45 Correct 94 ms 38976 KB Output is correct
46 Correct 93 ms 38976 KB Output is correct
47 Correct 85 ms 37656 KB Output is correct
48 Correct 96 ms 38484 KB Output is correct
49 Correct 63 ms 36700 KB Output is correct
50 Correct 75 ms 37972 KB Output is correct
51 Correct 93 ms 38996 KB Output is correct
52 Correct 86 ms 39004 KB Output is correct
53 Correct 55 ms 38492 KB Output is correct
54 Correct 67 ms 40276 KB Output is correct

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 149 ms 32716 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31324 KB Output is correct
2 Correct 14 ms 31324 KB Output is correct
3 Correct 14 ms 31380 KB Output is correct
4 Correct 14 ms 31580 KB Output is correct
5 Correct 14 ms 31320 KB Output is correct
6 Correct 14 ms 31320 KB Output is correct
7 Correct 15 ms 31324 KB Output is correct
8 Correct 14 ms 31580 KB Output is correct
9 Correct 14 ms 31508 KB Output is correct
10 Correct 14 ms 31324 KB Output is correct
11 Correct 14 ms 31324 KB Output is correct
12 Correct 14 ms 31576 KB Output is correct
13 Correct 14 ms 31324 KB Output is correct
14 Correct 15 ms 31324 KB Output is correct
15 Correct 14 ms 31324 KB Output is correct
16 Correct 14 ms 31324 KB Output is correct
17 Correct 15 ms 31324 KB Output is correct
18 Correct 15 ms 31384 KB Output is correct
19 Correct 15 ms 31580 KB Output is correct
20 Correct 16 ms 31580 KB Output is correct
21 Incorrect 15 ms 31324 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31324 KB Output is correct
2 Correct 14 ms 31324 KB Output is correct
3 Correct 14 ms 31380 KB Output is correct
4 Correct 14 ms 31580 KB Output is correct
5 Correct 14 ms 31320 KB Output is correct
6 Correct 14 ms 31320 KB Output is correct
7 Correct 15 ms 31324 KB Output is correct
8 Correct 14 ms 31580 KB Output is correct
9 Correct 14 ms 31508 KB Output is correct
10 Correct 14 ms 31324 KB Output is correct
11 Correct 14 ms 31324 KB Output is correct
12 Correct 14 ms 31576 KB Output is correct
13 Correct 14 ms 31324 KB Output is correct
14 Correct 15 ms 31324 KB Output is correct
15 Correct 14 ms 31324 KB Output is correct
16 Correct 14 ms 31324 KB Output is correct
17 Correct 15 ms 31324 KB Output is correct
18 Correct 15 ms 31384 KB Output is correct
19 Correct 15 ms 31580 KB Output is correct
20 Correct 16 ms 31580 KB Output is correct
21 Incorrect 15 ms 31324 KB Output isn't correct
22 Halted 0 ms 0 KB -