oj.uz

Submission #892218

# Submission time Handle Problem Language Result Execution time Memory
892218 2023-12-25T04:52:13 Z vjudge1 Team Contest (JOI22_team) C++17
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()

template<class S, class T>
bool chmin(S &a, const T &b) {
    return a > b && (a = b) == b;
}
template<class S, class T>
bool chmax(S &a, const T &b) {
    return a < b && (a = b) == b;
}
const int inf = 1e9 + 7;
const int INF = 1e18 + 7;
const int mod = 998244353;

map<int, int> mp;

struct Fenwick {
    int n;
    vector<int> t;
    Fenwick(int n) {
        this->n = n;
        t.assign(n, -1);
    }
    void upd(int i, int x) {
        for (; i < n; i = i | (i + 1)) {
            chmax(t[i], x);
        }
    }
    int get(int i) {
        int res = -1;
        for (; i >= 0; i = (i & (i + 1)) - 1) {
            chmax(res, t[i]);
        }
        return res;
    }
};

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int n, res = -1, Max = -1;
    cin >> n;
    vector<array<int, 3>> v(n);
    for (int i = 0; i < n; ++i) {
        cin >> v[i][0] >> v[i][1] >> v[i][2];
    }
    sort(all(v));
    vector<int> compress;
    for (int i = 0; i < n; ++i) {
        if (!mp.count(v[i][1])) {
            compress.push_back(v[i][1]);
            mp[v[i][1]];
        }
        if (!mp.count(v[i][2])) {
            compress.push_back(v[i][2]);
            mp[v[i][2]];
        }
    }
    sort(all(compress));
    for (int i = 0; i < size(compress); ++i) {
        mp[compress[i]] = i;
    }
    Fenwick y(size(compress)), z(size(compress));
    for (int i = 0; i < n; ++i) {
        int j;
        for (j = i; j < n && v[i][0] == v[j][0]; j++) {
            if (Max != -1) {
                chmax(res, Max + v[j][0]);
            }
        }
        for (j = i; j < n && v[i][0] == v[j][0]; j++) {
            int Find = y.get(mp[v[j][2]] - 1);
            if (Find != -1) {
                chmax(Max, v[j][2] + Find);
            }
            Find = z.get(mp[v[j][1]] - 1);
            if (Find != -1) {
                chmax(Max, v[j][1] + Find);
            }
            y.upd(mp[v[j][2]], v[j][1]);
            z.upd(mp[v[j][1]], v[j][2]);
        }
        i = j - 1;
    }
    cout << res;
}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 0 ms 348 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #2
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 0 ms 348 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# 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 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 344 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# 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 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 344 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# 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 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 344 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# 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 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 1 ms 344 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Incorrect 0 ms 348 KB Output isn't correct
7 Halted 0 ms 0 KB -