Submission #496133

#	Time	Username	Problem	Language	Result	Execution time	Memory
496133		Jarif_Rahman	Coin Collecting (JOI19_ho_t4)	C++17	100 / 100	60 ms	5692 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n; cin >> n;
    vector<vector<int>> v(2, vector<int>(n, 0));
    ll ans = 0;

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

    int a = 0, b = 0;
    for(int i = 0; i < n; i++){
        a+=v[0][i]-1, b+=v[1][i]-1;
        if(a > 0 && b < 0){
            int mn = min(a, -b);
            a-=mn, b+=mn, ans+=mn;
        }
        else if(b > 0 && a < 0){
            int mn = min(-a, b);
            a+=mn, b-=mn, ans+=mn;
        }
        ans+=abs(a)+abs(b);
    }

    cout << ans << "\n";
}

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