제출 #584362

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
584362		dxz05	Pinball (JOI14_pinball)	C++14	11 / 100	3 ms	332 KiB

pinball

#pragma GCC optimize("Ofast,O2,O3,unroll-loops")
#pragma GCC target("avx2")

#include <bits/stdc++.h>

#include <random>

using namespace std;

void debug_out() { cerr << endl; }

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << "[" << H << "]";
    debug_out(T...);
}

#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define lla(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)

clock_t startTime;

double getCurrentTime() {
    return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}

#define MP make_pair

typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.000001;
const int MOD = 1e9 + 7;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 2e6 + 3e2;
const int M = 1111;

long long pinball(int m, int n, vector<int> a, vector<int> b, vector<int> c, vector<int> d){
    if (m > 10) return -1;

    set<int> positions = {1, n};
    for (int i = 0; i < m; i++){
        positions.insert(a[i]);
        positions.insert(b[i]);
        if (a[i] > 1) positions.insert(a[i] - 1);
        if (b[i] < n) positions.insert(b[i] + 1);
    }

    ll cost = LLINF;
    for (int mask = 0; mask < (1 << m); mask++){
        set<int> different;
        for (int x : positions){
            for (int i = 0; i < m; i++){
                if (!(mask & (1 << i))) continue;
                if (a[i] <= x && x <= b[i]) x = c[i];
            }
            different.insert(x);
        }

        ll cur = 0;
        for (int i = 0; i < m; i++){
            if (mask & (1 << i)) cur += d[i];
        }

        if (different.size() == 1) cost = min(cost, cur);
    }

    if (cost == LLINF) cost = -1;

    return cost;
}

void solve(int TC) {
    int m, n;
    cin >> m >> n;

    vector<int> a(m), b(m), c(m), d(m);
    for (int i = 0; i < m; i++) cin >> a[i] >> b[i] >> c[i] >> d[i];

    cout << pinball(m, n, a, b, c, d) << endl;

}

int main() {
    startTime = clock();
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);

#ifdef dddxxz
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

    int TC = 1;
//    cin >> TC;

    for (int test = 1; test <= TC; test++) {
        //debug(test);
        //cout << "Case #" << test << ": ";
        solve(test);
    }

#ifdef dddxxz
    cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;
#endif

    return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 0 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 49