first commit

J08026 - BIẾN ĐỔI S – T.java

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+import java.util.*;
+
+public class non {
+    static class pair{
+        int x, y;
+        public pair(int x, int y){
+            this.x = x;
+            this.y = y;
+        }
+    }
+    static int solve(int s, int t){
+        if(s>=t) return s - t;
+        if(t%2==1) return 1 + solve(s, t+1);
+        return 1 + solve(s, t>>1);
+    }
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int T = sc.nextInt();
+        while(T-->0) System.out.println(solve(sc.nextInt(), sc.nextInt()));
+    }
+}