제출 #48845

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
48845		model_code	새 집 (APIO18_new_home)	C++17	12 / 100	5089 ms	30976 KiB

new_home

#include <bits/stdc++.h>
using namespace std;
const int INF = (int)1.01e9;

void print(vector<int> v) {
    for (int x : v) printf("%d\n", x);
}

struct Shop {
    int x, type, a, b;
};

struct Query {
    int x, time;
};

vector<int> slow(vector<Shop> a, int k, vector<Query> b) {
    int n = a.size(), m = b.size();
    vector<int> ans(m);
    struct Event {
        int time, type, id;
        bool operator< (const Event &ev) const {
            return make_pair(time, -type) < make_pair(ev.time, -ev.type);
        }
    };
    vector<Event> events;
    for (int i = 0; i < (int)a.size(); i++) {
        events.push_back({ a[i].a, +1, i });
        events.push_back({ a[i].b, -1, i });
    }
    for (int i = 0; i < (int)b.size(); i++) {
        events.push_back({ b[i].time, 0, i });
    }
    sort(events.begin(), events.end());
    vector<vector<int>> vct(k);
    int empty = k;
    for (auto ev : events) {
        if (ev.type == +1) {
            int tp = a[ev.id].type;
            int id = lower_bound(vct[tp].begin(), vct[tp].end(), a[ev.id].x) - vct[tp].begin();
            empty -= vct[tp].size() == 0;
            vct[tp].insert(vct[tp].begin() + id, a[ev.id].x);
        }
        if (ev.type == 0) {
            int cur = 0;
            if (empty) cur = INF;
            for (int i = 0; i < k; i++) {
                int id = lower_bound(vct[i].begin(), vct[i].end(), b[ev.id].x) - vct[i].begin();
                int ccur = INF;
                if (id < (int)vct[i].size()) ccur = min(ccur, abs(b[ev.id].x - vct[i][id]));
                if (id > 0) ccur = min(ccur, abs(b[ev.id].x - vct[i][id - 1]));
                cur = max(cur, ccur);
                if (cur >= INF / 2) break;
            }
            if (cur >= INF / 2) cur = -1;
            ans[ev.id] = cur;
        }
        if (ev.type == -1) {
            int tp = a[ev.id].type;
            int id = lower_bound(vct[tp].begin(), vct[tp].end(), a[ev.id].x) - vct[tp].begin();
            vct[tp].erase(vct[tp].begin() + id);
            empty += vct[tp].size() == 0;
        }
    }
    return ans;
}

int main() {
    int n, k, q;
    scanf("%d%d%d", &n, &k, &q);
    vector<Shop> a(n);
    for (int i = 0; i < n; i++) {
        scanf("%d%d%d%d", &a[i].x, &a[i].type, &a[i].a, &a[i].b);
        a[i].type--;
    }
    vector<Query> b(q);
    for (int i = 0; i < q; i++) scanf("%d%d", &b[i].x, &b[i].time);

    print(slow(a, k, b));
}

컴파일 시 표준 에러 (stderr) 메시지

new_home.cpp: In function 'std::vector<int> slow(std::vector<Shop>, int, std::vector<Query>)':
new_home.cpp:18:9: warning: unused variable 'n' [-Wunused-variable]
     int n = a.size(), m = b.size();
         ^
new_home.cpp: In function 'int main()':
new_home.cpp:70:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &k, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:73:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d%d", &a[i].x, &a[i].type, &a[i].a, &a[i].b);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:77:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 0; i < q; i++) scanf("%d%d", &b[i].x, &b[i].time);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20