java解决
新旧数组变化求余
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();
int s = 0;
for(int i = 2;i <= n;i++) {
s=(s+m)%i;
}
System.out.println(s+1);
}
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