first commit

2022-12-15 23:51:04 +07:00
commit 87d51fb251
292 changed files with 12623 additions and 0 deletions
@@ -0,0 +1,59 @@
+import java.util.*;
+
+public class non {
+    static class Pair{
+        int x, y, cnt;
+        public Pair(int x, int y){
+            this.x=x;
+            this.y=y;
+            this.cnt=0;
+        }
+        public Pair(String s){
+            this.x = (int)(s.charAt(0) - 'a');
+            this.y = (int)(s.charAt(1) - '1');
+            this.cnt = 0;
+        }
+        
+        public boolean is(Pair b){
+            return x==b.x && y==b.y;
+        }
+    }
+    
+    static int[][] step = {{-2, 2}, {-1, 1}};
+
+    static boolean check(int x, int y){
+        return x>=0 && x<8 && y>=0 && y<8;
+    }
+
+    static void solve(String a, String b){
+        Pair st = new Pair(a);
+        Pair en = new Pair(b);
+        boolean[][] check = new boolean[8][8];
+        Queue<Pair> q = new LinkedList<>();
+        q.add(st);
+        while(!q.isEmpty()){
+            Pair u = q.poll();
+            if(u.is(en)){
+                System.out.println(u.cnt);
+                return;
+            }
+            for(int i=0;i<2;i++){
+                for(int j=0;j<2;j++){
+                    for(int k=0;k<2;k++){
+                        Pair x = new Pair(u.x+step[k][i], u.y+step[1-k][j]);
+                        if(check(x.x, x.y)){
+                            x.cnt = u.cnt+1;
+                            q.add(x);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int T = sc.nextInt();
+        while(T-->0) solve(sc.next(), sc.next());
+    }
+}