Submission #1139698

#	Time	Username	Problem	Language	Result	Execution time	Memory
1139698		Persia	Palembang Bridges (APIO15_bridge)	C++20	0 / 100	0 ms	328 KiB

bridge

#include <bits/stdc++.h>
#define bit(i, x) (x >> i & 1)
#define ll long long
const int N = 2e5 + 5;
const int mod = 998244353;
using namespace std;

int k, n;
vector<pair<int, int>> a;

ll bonus;

signed main(int argc, char* argv[]) {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> k >> n;
    for(int i = 1; i <= n; i++) {
        char p, q; int s, t;
        cin >> p >> s >> q >> t;
        if(p == q) {
            bonus += abs(t - s);
            continue;
        }
        bonus++;
        a.push_back({min(s, t), max(s, t)});

//        auto [x, y] = a.back();
//        cout << x << " " << y << "\n";
    }

    ll res = 2e18;
    for(auto i : a) {
        int mid = (i.first + i.second) / 2;
        ll val = 0;
        for(auto j : a) {
            val += abs(j.first - mid) + abs(j.second - mid);
        }
        res = min(res, val);
    }

    cout << res + bonus;

    return 0 ^ 0;
}

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