View Compilation Error

0_0_37954385_13513\Main.java:2: 错误: 非法字符: '#'
#include<bits/stdc++.h>
^
0_0_37954385_13513\Main.java:2: 错误: 需要class, interface或enum
#include<bits/stdc++.h>
        ^
0_0_37954385_13513\Main.java:4: 错误: 需要class, interface或enum
const int mod = 1e9;
^
0_0_37954385_13513\Main.java:5: 错误: 需要class, interface或enum
typedef long long ll;
^
0_0_37954385_13513\Main.java:6: 错误: 需要class, interface或enum
ll n;
^
0_0_37954385_13513\Main.java:7: 错误: 需要class, interface或enum
int main()
^
0_0_37954385_13513\Main.java:10: 错误: 需要class, interface或enum
	cin >> T;
	^
0_0_37954385_13513\Main.java:11: 错误: 需要class, interface或enum
	while (T--) {
	^
0_0_37954385_13513\Main.java:13: 错误: 需要class, interface或enum
		n %= mod;
		^
0_0_37954385_13513\Main.java:14: 错误: 需要class, interface或enum
		cout << 2 * (n * (n - 1)) % mod * (n % mod * (n - 1) % mod) << '\n';
		^
0_0_37954385_13513\Main.java:15: 错误: 需要class, interface或enum
	}
	^
11 个错误