CE，跟着编译器改了一下，没啥用

错误代码：

#include<bits/stdc++.h>
using namespace std;
int n,i,a[1e9+6];
int main()
{
	cin>>n;
	for(i=1;i<=n;i++) cin>>a[i];
	sort(a,a+n);
	for(i=1;i<=n;i++) cout<<a[i];
	return 0;
}

错误信息：

/tmp/compiler_ruokslvy/src:3:14: 错误：conversion from ‘double’ to ‘long unsigned int’ in a converted constant expression
    3 | int n,i,a[1e9+6];
      |           ~~~^~
/tmp/compiler_ruokslvy/src:3:14: 错误：could not convert ‘(1.0e+9 + (double)6)’ from ‘double’ to ‘long unsigned int’
    3 | int n,i,a[1e9+6];
      |           ~~~^~
      |              |
      |              double
/tmp/compiler_ruokslvy/src:3:14: 错误：数组‘a’的大小具有非整数类型‘double’