oj.uz

Submission #1044554

# Submission time Handle Problem Language Result Execution time Memory
1044554 2024-08-05T10:39:24 Z juicy Sightseeing in Kyoto (JOI22_kyoto) C++17
100 / 100
 107 ms 12224 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

using T = array<long long, 3>;

bool smaller(const T &a, const T &b) {
    long long A = a[0] * b[1], B = a[1] * b[0];
    return A == B ? a[2] < b[2] : A < B;
}

struct cmp {
    bool operator()(const T &a, const T &b) const {
        return smaller(a, b);
    }
};

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

    int n, m; cin >> n >> m;
    array<vector<int>, 2> a;
    a[0].resize(n); a[1].resize(m);
    auto nxt = a;
    array<vector<bool>, 2> del;
    array<priority_queue<T, vector<T>, cmp>, 2> pq;
    for (auto it : {0, 1}) {
        del[it].resize(a[it].size());
        iota(nxt[it].begin(), nxt[it].end(), 1);
        for (int &x : a[it]) {
            cin >> x;
        }
        for (int i = 0; i + 1 < a[it].size(); ++i) {
            pq[it].push({a[it][i + 1] - a[it][i], 1, i});
        }
    }
    long long res = 0;
    auto pop = [&](int it, vector<int> &nxt) {
        auto [_, cnt, l] = pq[it].top(); pq[it].pop();
        int r = nxt[l];
        if (r + 1 == a[it].size()) {
            while (cnt--) {
                a[it].pop_back();
                res += a[it ^ 1].back();
            }
        } else {
            int k = nxt[r];
            del[it][r] = 1;
            nxt[l] = k;
            pq[it].push({a[it][k] - a[it][l], k - l, l});
        }
    };
    auto upd = [&](priority_queue<T, vector<T>, cmp> &pq, vector<bool> &del) {
        while (pq.size() && del[pq.top()[2]]) {
            pq.pop();
        }
    };
    while (pq[0].size() || pq[1].size()) {
        if (!pq[0].size()) {
            pop(1, nxt[1]);
        } else if (!pq[1].size()) {
            pop(0, nxt[0]);
        } else if (smaller(pq[0].top(), pq[1].top())) {
            pop(1, nxt[1]);
        } else {
            pop(0, nxt[0]);
        }
        upd(pq[0], del[0]);
        upd(pq[1], del[1]);
    }
    cout << res;
    return 0;
}

Compilation message

kyoto.cpp: In function 'int main()':
kyoto.cpp:39:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for (int i = 0; i + 1 < a[it].size(); ++i) {
      |                         ~~~~~~^~~~~~~~~~~~~~
kyoto.cpp: In lambda function:
kyoto.cpp:47:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         if (r + 1 == a[it].size()) {
      |             ~~~~~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 540 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 452 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 41 ms 5844 KB Output is correct
5 Correct 22 ms 4564 KB Output is correct
6 Correct 12 ms 2508 KB Output is correct
7 Correct 89 ms 10468 KB Output is correct
8 Correct 88 ms 9796 KB Output is correct
9 Correct 89 ms 10664 KB Output is correct
10 Correct 92 ms 10960 KB Output is correct
11 Correct 82 ms 9540 KB Output is correct
12 Correct 106 ms 10364 KB Output is correct
13 Correct 104 ms 10444 KB Output is correct
14 Correct 67 ms 10188 KB Output is correct
15 Correct 34 ms 10700 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 448 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 424 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #3
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 540 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 452 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 41 ms 5844 KB Output is correct
33 Correct 22 ms 4564 KB Output is correct
34 Correct 12 ms 2508 KB Output is correct
35 Correct 89 ms 10468 KB Output is correct
36 Correct 88 ms 9796 KB Output is correct
37 Correct 89 ms 10664 KB Output is correct
38 Correct 92 ms 10960 KB Output is correct
39 Correct 82 ms 9540 KB Output is correct
40 Correct 106 ms 10364 KB Output is correct
41 Correct 104 ms 10444 KB Output is correct
42 Correct 67 ms 10188 KB Output is correct
43 Correct 34 ms 10700 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 448 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 424 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 45 ms 6608 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 4 ms 1052 KB Output is correct
58 Correct 9 ms 1748 KB Output is correct
59 Correct 93 ms 12196 KB Output is correct
60 Correct 97 ms 11588 KB Output is correct
61 Correct 106 ms 12224 KB Output is correct
62 Correct 96 ms 11436 KB Output is correct
63 Correct 58 ms 11936 KB Output is correct
64 Correct 107 ms 11456 KB Output is correct
65 Correct 92 ms 11208 KB Output is correct
66 Correct 68 ms 11980 KB Output is correct
67 Correct 46 ms 11720 KB Output is correct