oj.uz

Submission #433434

# Submission time Handle Problem Language Result Execution time Memory
433434 2021-06-19T19:37:41 Z OttoTheDino Carnival Tickets (IOI20_tickets) C++17
11 / 100
 2 ms 716 KB 
#include "tickets.h"
#include <bits/stdc++.h>
using namespace std;

#define rep(i,s,e)                  for (int i = s; i <= e; ++i)
typedef vector<int> vi;

long long find_maximum(int k, vector<vi> x) {
	int n = x.size(), m = x[0].size();
    long long ans = 0;
    vector<vi> answer(n, vi(m, -1));
    priority_queue<pair<int,int>> pq;
    int used[n]={}, lo[n]={};
    rep (i,0,n-1) {
        rep (j,0,k-1) ans -= x[i][j];
        pq.push({x[i][m-1]+x[i][k-1],i});
    }
    rep (i,1,n*k/2) {
        int ma = pq.top().first, c = pq.top().second;
        pq.pop();
        ans += ma;
        if (used[c]<k-1) pq.push({x[c][m-1-++used[c]]+x[c][k-1-used[c]],c});
    }
    rep (i,0,k-1) {
        int cnt = 0;
        rep (j,0,n-1) {
            if (used[j] && cnt++<n/2) answer[j][m-1-(--used[j])] = i;
            else answer[j][lo[j]++] = i;
        }
    }
	allocate_tickets(answer);
	return ans;
}

Compilation message

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:22:44: warning: operation on 'used[c]' may be undefined [-Wsequence-point]
   22 |         if (used[c]<k-1) pq.push({x[c][m-1-++used[c]]+x[c][k-1-used[c]],c});
      |                                            ^~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 716 KB Output is correct

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Contestant returned 292273026 but the tickets gives a total value of 860858182
2 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Contestant returned 4 but the tickets gives a total value of 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB There is no ticket of color 3 on day 1
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB There is no ticket of color 3 on day 1
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB There is no ticket of color 3 on day 1
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Incorrect 0 ms 204 KB Contestant returned 292273026 but the tickets gives a total value of 860858182
8 Halted 0 ms 0 KB -