[BOJ] 백준 17143-낚시왕(java)

cjsong 2019. 8. 29. 23:58
정렬이 중요
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.StringTokenizer;
 
public class Main{
    private static int M;
    private static int[][] map;
    private static int C;
    private static int R;
    private static int result;
    private static ArrayList<Info> list;
 
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine(), " ");
        R = Integer.parseInt(st.nextToken());
        C = Integer.parseInt(st.nextToken());
        M = Integer.parseInt(st.nextToken());
 
        list = new ArrayList<Info>();
 
        for (int k = 0; k < M; k++) {
            st = new StringTokenizer(br.readLine(), " ");
            int r = Integer.parseInt(st.nextToken());
            int c = Integer.parseInt(st.nextToken());
            int s = Integer.parseInt(st.nextToken()); // 속력
            int d = Integer.parseInt(st.nextToken()); // 방향
            int z = Integer.parseInt(st.nextToken()); // 크기
 
            list.add(new Info(r, c, s, d, z));
 
        }
        result = 0;
        Collections.sort(list);
        process();
        System.out.println(result);
 
    }// end of main
 
    public static void process() {
        int fisherIndex = 0;
        
        while (fisherIndex != C) {
            fisherIndex++;
            for (Info info : list) {
                if (fisherIndex == info.c) {
                    result += info.z;
                    list.remove(info);
                    break;
                }
            }
 
            map = new int[R+1][C+1];
            move();
            Collections.sort(list);
            for (int i = list.size()-1; i>=0; i--) {
                if(map[list.get(i).r][list.get(i).c] != list.get(i).z) list.remove(i);
            }
 
        }
    }
 
    public static void move() {
        // 1~4 상하 우좌
 
        for (Info info : list) {
            int count = 0;
//            System.out.println(info.toString());
            while (count != info.s) {
                count++;
                switch (info.d) {
                case 1:
                    if (info.r > 1) {
                        info.r = info.r - 1;
                        continue;
 
                    } else {
                        count--;
                        info.d = 2;
                    }
                    break;
                case 2:
                    if (info.r < R) {
                        info.r = info.r + 1;
                        continue;
                    } else {
                        count--;
                        info.d = 1;
                    }
                    break;
                case 3:
                    if (info.c < C) {
                        info.c = info.c + 1;
                        continue;
                    } else {
                        count--;
                        info.d = 4;
                    }
                    break;
 
                case 4:
                    if (info.c > 1) {
                        info.c = info.c - 1;
                        continue;
                    } else {
                        count--;
                        info.d = 3;
                    }
                    break;
 
                default:
                    break;
                }
            }
            if(map[info.r][info.c] < info.z) map[info.r][info.c] = info.z;
 
 
        }
    }
 
    public static class Info implements Comparable<Info> {
        int r;
        int c;
        int s;// 속력
        int d;// 방향
        int z;// 크기
 
        public Info(int r, int c, int s, int d, int z) {
            super();
            this.r = r;
            this.c = c;
            this.s = s;
            this.d = d;
            this.z = z;
        }
 
        @Override
        public int compareTo(Info o) {
            if (o.c != this.c) {
                return this.c - o.c;
            } else if (o.c == this.c && o.r != this.r) {
                return this.r - o.r;
            }
            return o.z- this.z;
        }
 
        @Override
        public String toString() {
            // TODO Auto-generated method stub
            return "r:" + r +" c : " + c + " 속력 " + s +" 방향" + d + " 크기" + z ;
        }
        
    }
}// end of class
 
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