Submission #1310160

#	Time	Username	Problem	Language	Result	Execution time	Memory
1310160		tnt	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	1 ms	576 KiB

joi2019_ho_t4

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

#define pb push_back                    
#define ll long long  
#define f first
#define s second
#define int long long
//#define sz(v) int(v.size())
#define all(v) v.begin(),v.end()

int mod =  1e9 + 7;
const int N = 2e5 + 100,k = 317 + 1;
const ll inf = 1e18 + 100;
int mp[N];
void solve(){
    int n;
    cin >> n;
    int x[2 * n + 1],y[2 * n + 1];
    ll ans = 0,cnt = 0;
    for(int i = 1; i <= 2 * n; i++){
        cin >> x[i] >> y[i];
        swap(x[i],y[i]);
        if(x[i] >= 2){
            ans += x[i] - 2;
            x[i] = 2;
        }
        else{
            ans += 1 - x[i];
            x[i] = 1;
        }
    }
    for(int i = 1; i <= 2 * n; i++){
        if(y[i] < 1){
            ans += 1 - y[i];
            y[i] = 1;
        }
        else if(y[i] > n){
            ans += y[i] - n;
            y[i] = n;
        }
        if(x[i] == 1) cnt++;
        mp[y[i]]++;
    }
    for(int i = 1; i <= n; i++) mp[i] += mp[i - 1];
    ans += (n - min(cnt,2 * n - cnt));
    cnt = 0;
    for(int i = 1; i <= n; i++){
        ans += abs(2 * i - mp[i]);
    }
    cout << ans;
    
    
}
signed main(){
    //freopen("time.in", "r", stdin);
    //freopen("time.out", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int t1 = 1;
    while(t1--){
        solve();
    }
}                          	

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