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답안 #390293

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
390293 2021-04-15T19:26:15 Z apostoldaniel854 푸드 코트 (JOI21_foodcourt) C++14
24 / 100
 464 ms 52340 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define dbg(x) cerr << #x << " " << x << "\n"

struct node_t {
    ll sum_max;
    ll sum;
};

class segtree {
public:
    vector <node_t> seg;
    int n;
    segtree (int n) {
        this->n = n;
        seg.resize (1 + 4 * n);
    }
    node_t combine (node_t lnode, node_t rnode) {
        return {
            max (rnode.sum_max, rnode.sum + lnode.sum_max),
            lnode.sum + rnode.sum
        };
    }
    void update (int node, int lb, int rb, int pos, ll val) {
        if (lb == rb) {
            seg[node] = {max (0ll, val), val};
            return;
        }
        int mid = (lb + rb) / 2, lnode = node * 2, rnode = node * 2 + 1;
        if (pos <= mid)
            update (lnode, lb, mid, pos, val);
        else
            update (rnode, mid + 1, rb, pos, val);
        seg[node] = combine (seg[lnode], seg[rnode]);
    }
    node_t query (int node, int lb, int rb, int ql, int qr) {
        if (ql <= lb && rb <= qr) {
            return seg[node];
        }
        int mid = (lb + rb) / 2, lnode = node * 2, rnode = node * 2 + 1;
        node_t ans = {0, 0};
        if (ql <= mid)
            ans = combine (ans, query (lnode, lb, mid, ql, qr));
        if (qr > mid)
            ans = combine (ans, query (rnode, mid + 1, rb, ql, qr));
        return ans;
    }
};
class fenwick {
public:
    vector <ll> aib;
    int n;
    fenwick (int n) {
        this->n = n;
        aib.resize (1 + n);
    }
    void upd (int pos, ll val) {
        while (pos <= n) {
            aib[pos] += val;
            pos += pos & -pos;
        }
    }
    ll qry (int pos) {
        ll ans = 0;
        while (pos > 0) {
            ans += aib[pos];
            pos -= pos & -pos;
        }
        return ans;
    }
    ll qry (int l, int r) {
        return qry (r) - qry (l - 1);
    }
    int kth (ll k) {
        int ans = 0;
        for (int step = (1 << 20); step > 0; step /= 2)
            if (ans + step <= n && aib[ans + step] < k) {
                ans += step;
                k -= aib[ans];
            }
        return ans + 1;
    }
};

const int MAX_N = 25e4;

vector <pair <ll, ll>> qry[1 + MAX_N], upd_seg[1 + MAX_N], upd_fen[1 + MAX_N]; /// first-> pos, second-> value
ll group[1 + MAX_N];
ll sol[1 + MAX_N];

int main () {
    ios::sync_with_stdio (false);
    cin.tie (0); cout.tie (0);
    int n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i <= q; i++) {
        int type;
        cin >> type;
        if (type == 1) {
            ll l, r, c, k;
            cin >> l >> r >> c >> k;
            group[i] = c;
            upd_seg[l].push_back ({i, k});
            if (r < n)
                upd_seg[r + 1].push_back ({i, 0});
            upd_fen[l].push_back ({i, k});
            if (r < n)
                upd_fen[r + 1].push_back ({i, -k});
        }
        else if (type == 2) {
            ll l, r, k;
            cin >> l >> r >> k;
            upd_seg[l].push_back ({i, -k});
            if (r < n)
                upd_seg[r + 1].push_back ({i, 0});
        }
        else {
            ll a, b;
            cin >> a >> b;
            qry[a].push_back ({i, b});
        }
    }
    segtree balance (q);
    fenwick all (q);
    for (int i = 0; i <= q; i++)
        sol[i] = -1;
    for (int i = 1; i <= n; i++) {
        for (auto it : upd_seg[i])
            balance.update (1, 1, q, it.first, it.second);
        for (auto it : upd_fen[i])
            all.upd (it.first, it.second);
        for (auto it : qry[i]) {
            int best = balance.query (1, 1, q, 1, it.first).sum_max;
            if (best >= it.second) {
                sol[it.first] = group[all.kth (all.qry (it.first) - (best - it.second))];
            }
            else {
                sol[it.first] = 0;
            }
        }
    }
    for (int i = 1; i <= q; i++)
        if (sol[i] >= 0)
            cout << sol[i] << "\n";
    return 0;
}

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 18184 KB Output is correct
2 Correct 14 ms 18208 KB Output is correct
3 Correct 13 ms 18076 KB Output is correct
4 Correct 13 ms 18260 KB Output is correct
5 Correct 13 ms 18144 KB Output is correct
6 Correct 13 ms 18124 KB Output is correct
7 Correct 14 ms 18208 KB Output is correct
8 Correct 14 ms 18252 KB Output is correct
9 Correct 14 ms 18188 KB Output is correct
10 Correct 13 ms 18180 KB Output is correct
11 Correct 14 ms 18208 KB Output is correct
12 Correct 13 ms 18252 KB Output is correct
13 Correct 13 ms 18156 KB Output is correct
14 Correct 13 ms 18100 KB Output is correct
15 Correct 12 ms 18080 KB Output is correct
16 Correct 13 ms 18252 KB Output is correct
17 Correct 13 ms 18192 KB Output is correct
18 Correct 13 ms 18208 KB Output is correct
19 Correct 14 ms 18208 KB Output is correct
20 Correct 13 ms 18252 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 18184 KB Output is correct
2 Correct 14 ms 18208 KB Output is correct
3 Correct 13 ms 18076 KB Output is correct
4 Correct 13 ms 18260 KB Output is correct
5 Correct 13 ms 18144 KB Output is correct
6 Correct 13 ms 18124 KB Output is correct
7 Correct 14 ms 18208 KB Output is correct
8 Correct 14 ms 18252 KB Output is correct
9 Correct 14 ms 18188 KB Output is correct
10 Correct 13 ms 18180 KB Output is correct
11 Correct 14 ms 18208 KB Output is correct
12 Correct 13 ms 18252 KB Output is correct
13 Correct 13 ms 18156 KB Output is correct
14 Correct 13 ms 18100 KB Output is correct
15 Correct 12 ms 18080 KB Output is correct
16 Correct 13 ms 18252 KB Output is correct
17 Correct 13 ms 18192 KB Output is correct
18 Correct 13 ms 18208 KB Output is correct
19 Correct 14 ms 18208 KB Output is correct
20 Correct 13 ms 18252 KB Output is correct
21 Incorrect 14 ms 18192 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 92 ms 27588 KB Output is correct
2 Correct 105 ms 29512 KB Output is correct
3 Correct 105 ms 28792 KB Output is correct
4 Correct 95 ms 28740 KB Output is correct
5 Correct 103 ms 29452 KB Output is correct
6 Correct 128 ms 29512 KB Output is correct
7 Correct 45 ms 25192 KB Output is correct
8 Correct 47 ms 25660 KB Output is correct
9 Correct 103 ms 28880 KB Output is correct
10 Correct 95 ms 29068 KB Output is correct
11 Correct 107 ms 29016 KB Output is correct
12 Correct 107 ms 29112 KB Output is correct
13 Correct 94 ms 28092 KB Output is correct
14 Correct 98 ms 29360 KB Output is correct
15 Correct 105 ms 30528 KB Output is correct
16 Correct 143 ms 30672 KB Output is correct

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 464 ms 52340 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 13 ms 18184 KB Output is correct
2 Correct 14 ms 18208 KB Output is correct
3 Correct 13 ms 18076 KB Output is correct
4 Correct 13 ms 18260 KB Output is correct
5 Correct 13 ms 18144 KB Output is correct
6 Correct 13 ms 18124 KB Output is correct
7 Correct 14 ms 18208 KB Output is correct
8 Correct 14 ms 18252 KB Output is correct
9 Correct 14 ms 18188 KB Output is correct
10 Correct 13 ms 18180 KB Output is correct
11 Correct 14 ms 18208 KB Output is correct
12 Correct 13 ms 18252 KB Output is correct
13 Correct 13 ms 18156 KB Output is correct
14 Correct 13 ms 18100 KB Output is correct
15 Correct 12 ms 18080 KB Output is correct
16 Correct 13 ms 18252 KB Output is correct
17 Correct 13 ms 18192 KB Output is correct
18 Correct 13 ms 18208 KB Output is correct
19 Correct 14 ms 18208 KB Output is correct
20 Correct 13 ms 18252 KB Output is correct
21 Correct 92 ms 27588 KB Output is correct
22 Correct 105 ms 29512 KB Output is correct
23 Correct 105 ms 28792 KB Output is correct
24 Correct 95 ms 28740 KB Output is correct
25 Correct 103 ms 29452 KB Output is correct
26 Correct 128 ms 29512 KB Output is correct
27 Correct 45 ms 25192 KB Output is correct
28 Correct 47 ms 25660 KB Output is correct
29 Correct 103 ms 28880 KB Output is correct
30 Correct 95 ms 29068 KB Output is correct
31 Correct 107 ms 29016 KB Output is correct
32 Correct 107 ms 29112 KB Output is correct
33 Correct 94 ms 28092 KB Output is correct
34 Correct 98 ms 29360 KB Output is correct
35 Correct 105 ms 30528 KB Output is correct
36 Correct 143 ms 30672 KB Output is correct
37 Correct 106 ms 27656 KB Output is correct
38 Correct 91 ms 26988 KB Output is correct
39 Correct 40 ms 24444 KB Output is correct
40 Correct 47 ms 25644 KB Output is correct
41 Correct 99 ms 28672 KB Output is correct
42 Correct 97 ms 28920 KB Output is correct
43 Correct 100 ms 28892 KB Output is correct
44 Correct 126 ms 28868 KB Output is correct
45 Correct 103 ms 28876 KB Output is correct
46 Correct 97 ms 28872 KB Output is correct
47 Correct 56 ms 26192 KB Output is correct
48 Correct 77 ms 28604 KB Output is correct
49 Correct 74 ms 25784 KB Output is correct
50 Correct 88 ms 27332 KB Output is correct
51 Correct 99 ms 29092 KB Output is correct
52 Correct 99 ms 29104 KB Output is correct
53 Correct 84 ms 27916 KB Output is correct
54 Correct 112 ms 30828 KB Output is correct

Subtask #6
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 100 ms 26824 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 18184 KB Output is correct
2 Correct 14 ms 18208 KB Output is correct
3 Correct 13 ms 18076 KB Output is correct
4 Correct 13 ms 18260 KB Output is correct
5 Correct 13 ms 18144 KB Output is correct
6 Correct 13 ms 18124 KB Output is correct
7 Correct 14 ms 18208 KB Output is correct
8 Correct 14 ms 18252 KB Output is correct
9 Correct 14 ms 18188 KB Output is correct
10 Correct 13 ms 18180 KB Output is correct
11 Correct 14 ms 18208 KB Output is correct
12 Correct 13 ms 18252 KB Output is correct
13 Correct 13 ms 18156 KB Output is correct
14 Correct 13 ms 18100 KB Output is correct
15 Correct 12 ms 18080 KB Output is correct
16 Correct 13 ms 18252 KB Output is correct
17 Correct 13 ms 18192 KB Output is correct
18 Correct 13 ms 18208 KB Output is correct
19 Correct 14 ms 18208 KB Output is correct
20 Correct 13 ms 18252 KB Output is correct
21 Incorrect 14 ms 18192 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #8
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 18184 KB Output is correct
2 Correct 14 ms 18208 KB Output is correct
3 Correct 13 ms 18076 KB Output is correct
4 Correct 13 ms 18260 KB Output is correct
5 Correct 13 ms 18144 KB Output is correct
6 Correct 13 ms 18124 KB Output is correct
7 Correct 14 ms 18208 KB Output is correct
8 Correct 14 ms 18252 KB Output is correct
9 Correct 14 ms 18188 KB Output is correct
10 Correct 13 ms 18180 KB Output is correct
11 Correct 14 ms 18208 KB Output is correct
12 Correct 13 ms 18252 KB Output is correct
13 Correct 13 ms 18156 KB Output is correct
14 Correct 13 ms 18100 KB Output is correct
15 Correct 12 ms 18080 KB Output is correct
16 Correct 13 ms 18252 KB Output is correct
17 Correct 13 ms 18192 KB Output is correct
18 Correct 13 ms 18208 KB Output is correct
19 Correct 14 ms 18208 KB Output is correct
20 Correct 13 ms 18252 KB Output is correct
21 Incorrect 14 ms 18192 KB Output isn't correct
22 Halted 0 ms 0 KB -