제출 #1037722

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1037722		stdfloat	Palembang Bridges (APIO15_bridge)	C++17	0 / 100	1 ms	348 KiB

bridge

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

using ll = long long;

#define ff  first
#define ss  second
#define pii pair<int, int>

ll f(int x, vector<pii> &v) {
    ll sm = 0;
    for (auto i : v) sm += abs(i.ff - x) + 1 + abs(i.ss - x);

    return sm;
}

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);

    int k, n;
    cin >> k >> n;

    ll sm = 0;
    vector<pii> 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});
    }

    int l = 0, r = (int)1e9;
    while (l <= r) {
        int md = (l + r) >> 1;

        if (f(md, v) >= f(md + 1, v)) l = md + 1;
        else r = md - 1;
    }

    cout << sm + f(max(0, l - 1), v);
}

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