제출 #808198

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
808198		drdilyor	카니발 티켓 (IOI20_tickets)	C++17	0 / 100	1 ms	468 KiB

tickets

#include<bits/stdc++.h>
#include "tickets.h"
using namespace std;
using ll = long long;
const int inf = 1e9;

#define debug(args...) cout << "[" << #args << "]: "; debug_out(args...);
void debug_out() {
    cout << endl;
}
template<typename H, typename... T>
void debug_out(H h, T... t) {
    cout << h << ", ";
    debug_out(t...);
}

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

    vector<tuple<int,int,int>> big;
    big.reserve(n * m);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m;j++)
            big.push_back({x[i][j], i, j});
    }
    sort(big.begin(), big.end());
    vector low(n, vector<int>(m, 0));
    for (int i = 0; i < n * m / 2; i++) {
        low[get<1>(big[i])][get<2>(big[i])] = 1;
    }
    vector ans(n, vector<int>(m, 0));
    int round_low = 0, round_high = n-1;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (low[i][j]) {
                ans[i][j] = round_low++;
                if (round_low >= m) round_low -= m;
            }
            else {
                ans[i][j] = round_high--;
                if (round_high < 0) round_high += m;
            }
        }
    }
    allocate_tickets(ans);

	return 1;
}

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