Submission #1124596

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124596		Sharky	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t4

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

#define int long long

const int N = 1e5 + 10;
int x[2 * N], y[2 * N];
int f[N][3];
int ans = 0;

int32_t main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int n;
    cin >> n;
    vector<pair<int, int>> v;
    for (int i = 1; i <= 2 * n; i++) {
        cin >> x[i] >> y[i];
        if (x[i] < 1) {
            ans += 1 - x[i];
            x[i] = 1;
        }
        if (x[i] > n) {
            ans += x[i] - n;
            x[i] = n;
        }
        if (y[i] < 1) {
            ans += 1 - y[i];
            y[i] = 1;
        }
        if (y[i] > 2) {
            ans += y[i] - 2;
            y[i] = 2;
        }
        f[x[i]][y[i]]++;
    }
    vector<int> d[3], s[3];
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= 2; j++) {
            if (f[i][j]) {
                for (int k = 1; k < f[i][j]; k++) {
                    if (d[j].empty() && d[3-j].empty()) s[j].push_back(i);
                    else if (!d[j].empty()) {
                        ans += abs(i - d[j].back());
                        d[j].pop_back();
                    } else {
                        ans += abs(i - d[3-j].back()) + 1;
                        d[3-j].pop_back();
                    }
                }
            } else {
                if (s[j].empty() && s[3-j].empty()) d[j].push_back(i);
                else if (!s[j].empty()) {
                    ans += abs(i - s[j].back());
                    s[j].pop_back();
                } else {
                    ans += abs(i - s[3-j].back()) + 1;
                    s[3-j].pop_back();
                }
            }
        }
    }
    cout << ans << '\n';
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63