Submission #489623

#	Time	Username	Problem	Language	Result	Execution time	Memory
489623		Victor	Tenis (COCI20_tenis)	C++17	25 / 110	48 ms	10820 KiB

tenis

// #pragma GCC target ("avx,avx2,fma")
// #pragma GCC optimize ("Ofast,inline") // O1 - O2 - O3 - Os - Ofast
// #pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

#define rep(i, a, b) for (int i = (a); i < (b); ++i)
#define per(i, a, b) for (int i = (b - 1); i >= (a); --i)
#define trav(a, x) for (auto &a : x)

#define all(x) x.begin(), x.end()
#define sz(x) x.size()
#define pb push_back
#define debug(x) cout << #x << " = " << x << endl

#define umap unordered_map
#define uset unordered_set

typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<vi> vvi;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef vector<ll> vll;
typedef vector<pll> vpll;

const int INF = 1'000'000'007;

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin.exceptions(cin.failbit);

    ll n, people[100001][3], wins[100001], courts[3], best_court[100001];
    memset(courts, 0, sizeof(courts));
    memset(wins, 0, sizeof(wins));
    vll best[100001];

    cin >> n;
    rep(i, 0, 3) rep(j, 0, n) {
        ll person;
        cin >> person;
        people[person - 1][i] = j;
    }

    rep(i, 0, n) {
        ll mn = n;
        rep(j, 0, 3) if (people[i][j] < mn) {
            mn = people[i][j];
            best_court[i] = j;
        }
        best[mn].pb(i);
    }

    ll cnt = n;
    rep(i, 0, n) {
        
        cnt -= ll(sz(best[i]));
        trav(person, best[i]) {
            wins[person] += cnt;
            courts[best_court[person]] += cnt;
        }

        rep(j, 0, ll(sz(best[i])) - 1) {
            rep(k, j + 1, ll(sz(best[i]))) {
                ll p1 = best[i][j], p2 = best[i][k];
                assert(best_court[p1] != best_court[p2]);
                ll best1 = best_court[p1], best2 = best_court[p2];
                ll val1 = people[p1][best2], val2 = people[p2][best1];

                if (val1 < val2 || (val1 == val2 && best2 < best1)) {
                    ++wins[p2];
                    ++courts[best2];

                } else {
                    ++wins[p1];
                    ++courts[best1];
                }
            }
        }
    }

    rep(i, 0, 3) cout << courts[i] << ' ';
    cout << endl;
    rep(i, 0, n) cout << wins[i] << ' ';
    cout << endl;
    return 0;
}

• Subtask 1: 17.5 / 35
• Subtask 2: 7.5 / 15
• Subtask 3: 0 / 60