指针做法

#include<bits/stdc++.h>
using namespace std;

int sq(int *nums,int n){
    if(n<=1)return 0;
    cout<<'[';
	for(int i = 0;i<n/2+n%2;i++)printf("%d ",*(nums+i));
    printf("],[");
    for(int i = n/2+n%2;i<n;i++)printf("%d ",*(nums+i));
    cout<<"]\n";
    sq(nums,n/2+n%2);
    sq(nums+n/2+n%2,n/2);
}


int main(){
    int n;
    cin >> n;
    int nums[n];
    for(int i = 0;i<n;i++)cin>>nums[i];
    int* p = nums;
	sq(p,n);
}