oj.uz

Submission #130123

# Submission time Handle Problem Language Result Execution time Memory
130123 2019-07-14T04:23:16 Z choikiwon None (JOI16_worst_reporter2) C++17
60 / 100
 2000 ms 32036 KB 
#include<bits/stdc++.h>
using namespace std;

typedef pair<int, int> pii;

const int MN = 200010;

int N;
vector<int> V[MN], X[MN];
priority_queue<int> freeV;
multiset<int> freeX;
int la[MN];

int main() {
    std::ios::sync_with_stdio(false);

    cin >> N;

    for(int i = 0; i < N; i++) {
        int a, b; cin >> a >> b;
        V[--a].push_back(b);
    }
    for(int i = 0; i < N; i++) {
        int c, d; cin >> c >> d;
        X[--c].push_back(d);
    }

    int ans = 0;
    for(int i = 0; i < N; i++) {
        sort(V[i].begin(), V[i].end());
        sort(X[i].begin(), X[i].end());

        vector<int> chk(V[i].size(), 0);
        vector<int> tmp;

        int pos = (int)X[i].size() - 1;
        for(int j = (int)V[i].size() - 1; j >= 0; j--) {
            if(pos >= 0 && V[i][j] <= X[i][pos]) {
                pos--;
                continue;
            }
            freeV.push(V[i][j]);
            chk[j] = 1;
        }
        for(int j = 0; j < V[i].size(); j++) if(!chk[j]) tmp.push_back(V[i][j]);
        V[i] = tmp;

        if(V[i].size() == 0) {
            for(int j = 0; j < X[i].size(); j++) {
                freeX.insert(X[i][j]);
            }
            la[i] = -1;
            continue;
        }

        chk = vector<int>(X[i].size(), 0);

        pos = 0;
        for(int j = 0; j < V[i].size(); j++) {
            while(pos < X[i].size() && X[i][pos] < V[i][j]) pos++;
            chk[pos] = 1;
            pos++;
        }

        tmp.clear();
        for(int j = 0; j < X[i].size(); j++) {
            if(chk[j]) tmp.push_back(X[i][j]);
            else freeX.insert(X[i][j]);
        }
        X[i] = tmp;
        la[i] = (int)V[i].size() - 1;
    }

    ans += freeV.size();

    while(!freeV.empty()) {
        int v = freeV.top(); freeV.pop();

        auto it = freeX.lower_bound(v);
        if(it != freeX.end()) {
            freeX.erase(it);
            continue;
        }

        ans++;

        int mn = 1e9;
        int p = -1;
        for(int i = 0; i < N; i++) {
            while(la[i] >= 0 && V[i][ la[i] ] >= v) la[i]--;

            if(la[i] >= 0 && X[i][ la[i] ] >= v) {
                int tmp = 1e9;
                for(int j = la[i]; j >= 0; j--) {
                    if(j == 0 || X[i][j - 1] < V[i][j]) {
                        tmp = V[i][j];
                        break;
                    }
                }
                if(mn > tmp) {
                    mn = tmp;
                    p = i;
                }
            }
        }

        for(int i = la[p]; i >= 0; i--) {
            if(i == 0 || X[p][i - 1] < V[p][i]) {
                freeV.push(V[p][i]);
                V[p][i] = v;
                break;
            }
            else swap(v, V[p][i]);
        }
    }

    cout << ans;
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:45:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < V[i].size(); j++) if(!chk[j]) tmp.push_back(V[i][j]);
                        ~~^~~~~~~~~~~~~
worst_reporter2.cpp:49:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j = 0; j < X[i].size(); j++) {
                            ~~^~~~~~~~~~~~~
worst_reporter2.cpp:59:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < V[i].size(); j++) {
                        ~~^~~~~~~~~~~~~
worst_reporter2.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(pos < X[i].size() && X[i][pos] < V[i][j]) pos++;
                   ~~~~^~~~~~~~~~~~~
worst_reporter2.cpp:66:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < X[i].size(); j++) {
                        ~~^~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 11 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 11 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9848 KB Output is correct
13 Correct 10 ms 9768 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9692 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 11 ms 9848 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 11 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9848 KB Output is correct
13 Correct 10 ms 9768 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9692 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 11 ms 9848 KB Output is correct
23 Correct 30 ms 10232 KB Output is correct
24 Correct 30 ms 10360 KB Output is correct
25 Correct 30 ms 10232 KB Output is correct
26 Correct 36 ms 10204 KB Output is correct
27 Correct 15 ms 10232 KB Output is correct
28 Correct 14 ms 9848 KB Output is correct
29 Correct 20 ms 9976 KB Output is correct
30 Correct 22 ms 9976 KB Output is correct
31 Correct 34 ms 9976 KB Output is correct
32 Correct 13 ms 9976 KB Output is correct
33 Correct 14 ms 9848 KB Output is correct
34 Correct 16 ms 9976 KB Output is correct
35 Correct 17 ms 9980 KB Output is correct
36 Correct 32 ms 9948 KB Output is correct
37 Correct 13 ms 9976 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 11 ms 9720 KB Output is correct
4 Correct 10 ms 9720 KB Output is correct
5 Correct 10 ms 9720 KB Output is correct
6 Correct 10 ms 9724 KB Output is correct
7 Correct 10 ms 9720 KB Output is correct
8 Correct 10 ms 9720 KB Output is correct
9 Correct 11 ms 9720 KB Output is correct
10 Correct 10 ms 9720 KB Output is correct
11 Correct 10 ms 9720 KB Output is correct
12 Correct 11 ms 9848 KB Output is correct
13 Correct 10 ms 9768 KB Output is correct
14 Correct 10 ms 9720 KB Output is correct
15 Correct 10 ms 9720 KB Output is correct
16 Correct 10 ms 9720 KB Output is correct
17 Correct 11 ms 9720 KB Output is correct
18 Correct 11 ms 9692 KB Output is correct
19 Correct 10 ms 9720 KB Output is correct
20 Correct 10 ms 9720 KB Output is correct
21 Correct 10 ms 9720 KB Output is correct
22 Correct 11 ms 9848 KB Output is correct
23 Correct 30 ms 10232 KB Output is correct
24 Correct 30 ms 10360 KB Output is correct
25 Correct 30 ms 10232 KB Output is correct
26 Correct 36 ms 10204 KB Output is correct
27 Correct 15 ms 10232 KB Output is correct
28 Correct 14 ms 9848 KB Output is correct
29 Correct 20 ms 9976 KB Output is correct
30 Correct 22 ms 9976 KB Output is correct
31 Correct 34 ms 9976 KB Output is correct
32 Correct 13 ms 9976 KB Output is correct
33 Correct 14 ms 9848 KB Output is correct
34 Correct 16 ms 9976 KB Output is correct
35 Correct 17 ms 9980 KB Output is correct
36 Correct 32 ms 9948 KB Output is correct
37 Correct 13 ms 9976 KB Output is correct
38 Execution timed out 2040 ms 32036 KB Time limit exceeded
39 Halted 0 ms 0 KB -