Submission #1054944

#	Time	Username	Problem	Language	Result	Execution time	Memory
1054944		c2zi6	Carnival Tickets (IOI20_tickets)	C++14	11 / 100	1 ms	860 KiB

tickets

#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "tickets.h"

namespace TEST1 {
    ll find_maximum(int k, VVI table) {
        int n = table.size();
        int m = table[0].size();
        VI a;
        rep(i, n) a.pb(table[i][0]);
        sort(all(a));
        ll ans = 0;
        rep(i, n/2) ans -= a[i];
        rep(i, n/2) ans += a[i + n/2];
        VVI answ(n, VI(m, 0));
        allocate_tickets(answ);
        return ans;
    }
};

ll find_maximum(int k, VVI table) {
	int n = table.size();
	int m = table[0].size();
    if (m == 1) return TEST1::find_maximum(k, table);
    VI mek, zro;
    mek = zro = VI(n, m-1);
    rep(i, n) rep(j, m) {
        if (!table[i][j]) {
            zro[i] = j;
        }
    }
    rep(i, n) mek[i] = zro[i]+1;
    VVI ans(n, VI(m, -1));
    ll answ = 0;
    rep(i, k) {
        int cnt = 0;
        rep(j, n) {
            if (cnt >= n/2) {
                if (zro[j] >= 0) {
                    ans[j][zro[j]--] = i;
                } else {
                    ans[j][mek[j]++] = i;
                    cnt++;
                }
            } else {
                if (mek[j] < m) {
                    ans[j][mek[j]++] = i;
                    cnt++;
                    answ++;
                } else {
                    ans[j][zro[j]--] = i;
                }
            }
        }
    }
    allocate_tickets(ans);
	return answ;
}

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