first commit

J03024 - SỐ ƯU THẾ.java

@@ -0,0 +1,29 @@
+import java.math.BigInteger;
+import java.util.Scanner;
+
+public class Main {
+    static boolean is(char x){
+        if(x>='0' && x<='9') return true;
+        return false;
+    }
+    static String check(String s){
+        if(s.charAt(0)=='0') return "INVALID";
+        int n=s.length();
+        int c=0;
+        for(int i=0;i<n;i++){
+            if(!is(s.charAt(i))) return "INVALID";
+            if((s.charAt(i)-'0')%2==0) c++;
+        }
+        if(n%2==0 && c>n-c) return "YES";
+        if(n%2==1 && c<n-c) return "YES";
+        return "NO";
+    }
+    public static void main(String[] args){
+        Scanner sc = new Scanner(System.in);
+        int t=sc.nextInt();
+        for(int i=0;i<t;i++){
+            System.out.println(check(sc.next()));
+        }
+        sc.close(); 
+    }
+}