Submission #110902

#	Time	Username	Problem	Language	Result	Execution time	Memory
110902		oolimry	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	2 ms	384 KiB

joi2019_ho_t4

#include <bits/stdc++.h>

using namespace std;

int main()
{
    //freopen("i.txt","r",stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    long long ans = 0ll;
    int n;
    cin >> n;
    int arr[n][2];

    for(int i = 0;i < n;i++){
        arr[i][0] = 0;
        arr[i][1] = 0;
    }

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



    int comb[n];
    int col = 0;
    for(int i = 0;i < n;i++){
        comb[i] = arr[i][0] + arr[i][1];
        col += arr[i][0];
        col -= arr[i][1];
    }


    for(int i = 0;i < n;i++){
        int x = comb[i] - 2;
        ans += abs(x);
        comb[i] = 2;
        if(i != n-1) comb[i+1] += x;
    }
    col /= 2;
    ans += abs(col);
    cout << ans;
    return 0;
}

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