Submission #1124611

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124611		Sharky	Coin Collecting (JOI19_ho_t4)	C++20	100 / 100	41 ms	5704 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]]++;
    }
    int a = 0, b = 0;
    for (int i = 1; i <= n; i++) {
        a += f[i][1] - 1;
        b += f[i][2] - 1;
        while (a < 0 && b > 0) a++, b--, ans++;
        while (a > 0 && b < 0) a--, b++, ans++;
        ans += abs(a) + abs(b);
    }
    cout << ans << '\n';
}

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