제출 #1075443

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1075443		stdfloat	Palembang Bridges (APIO15_bridge)	C++17	31 / 100	2068 ms	11020 KiB

bridge

#include <bits/stdc++.h>
using namespace std;
    
using ll = long long;

#define int long long

int32_t main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
 
    int K, n;
    cin >> K >> n;
 
    ll sm = 0;
    vector<vector<int>> v;
    for (int i = 0; i < n; i++) {
        char p, q;
        int s, t;
        cin >> p >> s >> q >> t;
 
        if (p == q) sm += abs(t - s);
        else v.push_back({s + t, s, t});
    }

    if (v.empty()) return cout << sm, 0;
 
    sm += (int)v.size();
 
    sort(v.begin(), v.end());
 
    vector<int> u;
    for (auto i : v) u.insert(u.end(), {i[1], i[2]});
 
    if (K == 1) {
        sort(u.begin(), u.end());
        for (int j = 0; j < (int)u.size(); j++) sm += (j < (int)u.size() >> 1 ? -1 : 1) * u[j];
 
        return cout << sm, 0;
    }

    ll mn = LLONG_MAX;
    for (int i = 0; i < (int)u.size(); i++) {
        for (int j = i + 1; j < (int)u.size(); j++) {
            ll sm = 0;
            for (auto k : v) sm += min(abs(k[1] - u[i]) + abs(k[2] - u[i]), abs(k[1] - u[j]) + abs(k[2] - u[j]));
 
            mn = min(mn, sm);
        }
    }
 
    cout << sm + mn;
}

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 9 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37