oj.uz

Submission #930814

# Submission time Handle Problem Language Result Execution time Memory
930814 2024-02-20T13:01:17 Z JooDdae Carnival Tickets (IOI20_tickets) C++17
27 / 100
 404 ms 73204 KB 
#include "tickets.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll find_maximum(int k, vector<vector<int>> x) {
    int n = x.size();
    int m = x[0].size();

    ll ans = 0;
    priority_queue<array<int, 2>> pq;
    vector<int> c(n, 0);
    for(int i=0;i<n;i++) {
        for(int j=0;j<k;j++) ans -= x[i][j];
        pq.push({x[i][m-1]+x[i][k-1], i});
    }

    for(int i=0;i<n*k/2;i++) {
        auto [C, u] = pq.top(); pq.pop();
        ans += C;
        if(++c[u] == k) continue;
        pq.push({x[u][m-1-c[u]]+x[u][k-1-c[u], u]});
    }
    while(!pq.empty()) pq.pop();


    vector<int> L(n, 0), R(n, 0);
    for(int i=0;i<n;i++) R[i] = m-c[i];
    for(int i=0;i<n;i++) c[i] = k-c[i], pq.push({c[i], i});

    vector<vector<int>> re(n, vector<int>(m, -1));
    for(int i=0;i<k;i++) {
        set<int> s;
        for(int j=0;j<n/2;j++) s.insert(pq.top()[1]), pq.pop();

        for(int j=0;j<n;j++) {
            if(s.count(j)) re[j][L[j]++] = i;
            else re[j][R[j]++] = i;
        }

        for(auto x : s) pq.push({--c[x], x});
    }


    allocate_tickets(re);
    return ans;
}

Compilation message

tickets.cpp: In function 'll find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:22:41: warning: value computed is not used [-Wunused-value]
   22 |         pq.push({x[u][m-1-c[u]]+x[u][k-1-c[u], u]});

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 772 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 2 ms 604 KB Output is correct
5 Correct 16 ms 3240 KB Output is correct
6 Correct 404 ms 73204 KB Output is correct

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Contestant returned 4 but the tickets gives a total value of 5
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 600 KB There is no ticket of color 0 on day 0
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB There is no ticket of color 0 on day 0
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB There is no ticket of color 0 on day 0
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 2 ms 772 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 2 ms 604 KB Output is correct
11 Correct 16 ms 3240 KB Output is correct
12 Correct 404 ms 73204 KB Output is correct
13 Incorrect 0 ms 344 KB Contestant returned 4 but the tickets gives a total value of 5
14 Halted 0 ms 0 KB -