请问这个JAVA程序如何优化占用内存？
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int m = sc.nextInt(); if(0<n&&m<=200){ int i; i=(m-1)*(n-1); System.out.println(i); } } }
#JAVA优化##悬赏#
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