제출 #1147617

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1147617		leo12345	Coin Collecting (JOI19_ho_t4)	Java	0 / 100	43 ms	10296 KiB

joi2019_ho_t4

import java.io.*;
import java.util.*;

public class joi2019_ho_t4 {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;
        
        int N = Integer.parseInt(bufferedReader.readLine());
        int[] a = new int[N + 1], b = new int[N + 1];
        long ans = 0;
        int[][] dp = new int[N + 1][3];
        
        for (int i = 1; i <= 2 * N; i++) {
            st = new StringTokenizer(bufferedReader.readLine());
            int x = Integer.parseInt(st.nextToken());
            int y = Integer.parseInt(st.nextToken());
            
            if (x > N) {
                ans += (x - N);
                x = N;
            }
            if (x < 1) {
                ans += (1 - x);
                x = 1;
            }
            if (y > 2) {
                ans += (y - 2);
                y = 2;
            }
            if (y < 1) {
                ans += (1 - y);
                y = 1;
            }
            dp[x][y]++;
            if (i <= N) {
                dp[i][1]--;
                dp[i][2]--;
            }
        }

        for (int i = 1; i <= N; i++) {
            if (dp[i][1] < 0 && dp[i][2] > 0) {
                int m = Math.min(-dp[i][1], dp[i][2]);
                ans += m;
                dp[i][1] += m;
                dp[i][2] -= m;
            }
            if (dp[i][1] > 0 && dp[i][2] < 0) {
                int m = Math.min(dp[i][1], -dp[i][2]);
                ans += m;
                dp[i][1] -= m;
                dp[i][2] += m;
            }
            ans += Math.abs(dp[i][1]) + Math.abs(dp[i][2]);
            dp[i + 1][1] += dp[i][1];
            dp[i + 1][2] += dp[i][2];
        }

        System.out.println(ans);
    }
}

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