Submission #1073310

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1073310	2024-08-24 12:10:02	mc061	Carnival Tickets (IOI20_tickets)	C++17	39 / 100	3090 ms	2097152 KiB

tickets

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#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
const int mxN = 1.5e3+6;
bool have_c[mxN][mxN]={};
void allocate_tickets(std::vector<std::vector<int>> _x);
long long find_maximum(int k, std::vector<std::vector<int>> d) {
    srand(time(0));
    const int n = d.size(); //colors
    const int m = d[0].size(); //tickets per color
    vector<vector<int64_t>> dp(n+1, vector<int64_t>(n*k/2+1, -1e18));
    vector<vector<int64_t>> prev(n+1, vector<int64_t>(n*k/2+1));
    dp[0][0] = 0;
    vector<vector<int64_t>> val(n, vector<int64_t>(m+1, 0)); //what value gain by taking j with minus
    for (int i = 0; i < n; ++i) {
        int64_t res = 0;
        for (int j = m-1; j >= m-k; --j) {
            res += d[i][j];
        }
        int ptr = m-k;
        val[i][0] = res;
        for (int j = 1; j <= k; ++j) {
            res -= d[i][ptr];
            res -= d[i][j-1];
            val[i][j] = res;
            ptr++;
        }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tickets.cpp: In lambda function:
tickets.cpp:84:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for (int i = 0; i < less.size(); ++i) {
      |                         ~~^~~~~~~~~~~~~
tickets.cpp:86:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::array<int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |             for (int j = 0; j < more.size(); ++j) {
      |                             ~~^~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 16 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 12 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10