Submission #253644

#	Time	Username	Problem	Language	Result	Execution time	Memory
253644		Atill83	Coin Collecting (JOI19_ho_t4)	C++14	100 / 100	74 ms	4996 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 3e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;

int gr[MAXN][2];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;
    ll ans = 0;
    for(int i = 0; i < 2*n; i++){
        int x, y;
        cin>>x>>y;
        if(x >= 1 && x <= n){
            if(y <= 1){
                gr[x][0]++;
                ans += (1 - y);
            }else{
                gr[x][1]++;
                ans += (y - 2);
            }
        }else{
            if(x < 1){
                if(y <= 1){
                    gr[1][0]++;
                    ans += (1 - x + 1 - y);
                }else{
                    gr[1][1]++;
                    ans += (1 - x + y - 2);
                }
            }else if(x > n){
                if(y <= 1){
                    gr[n][0]++;
                    ans += (x - n + 1 - y);
                }else{
                    gr[n][1]++;
                    ans += (x - n + y - 2);
                }
            }
        }
    }
    int usd = 0, ald = 0;
    for(int i = 1; i <= n; i++){
        usd += gr[i][0] - 1;
        ald += gr[i][1] - 1;

        if(usd < 0 && ald > 0){
            int c = min(-usd, ald);
            usd += c;
            ald -= c;
            ans += c;
        }else if(usd > 0 && ald < 0){
            int c = min(usd, -ald);
            usd -= c;
            ald += c;
            ans += c;
        }
        ans += abs(usd) + abs(ald);
    }

    cout<<ans<<endl;




    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

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