Submission #496112

#	Time	Username	Problem	Language	Result	Execution time	Memory
496112		Jarif_Rahman	Coin Collecting (JOI19_ho_t4)	C++17	0 / 100	1 ms	204 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]++;
    }

    for(int k = 0; k < 2; k++) for(int i = 0; i < n; i++){
        if(v[k][i] > 0) continue;
        pair<int, int> p; int mn = 1e9;
        for(int kk = 0; kk < 2; kk++) for(int j = 0; j < n; j++){
            if(v[kk][j] <= 1) continue;
            if(abs(k-kk)+abs(i-j) < mn) mn = abs(k-kk)+abs(i-j), p = {kk, j};
            //if(abs(k-kk)+abs(i-j) == mn && k == kk) p = {kk, j};
        }
        v[p.f][p.sc]--;
        v[k][i]++;
        ans+=abs(k-p.f)+abs(i-p.sc);
    }

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

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