@[XjascodoixjqoinOI](/user/389844)
问题不大，就是 d 数组也是要开 long long 的
那你的代码改的 AC 代码：
```cpp
//Test
#include <iostream>
#include <algorithm>
#include <cstdio>
#include <cstdio>
using namespace std;
typedef long long LL;
const int N = 64;
struct Node
{
int val;
LL id;
bool operator<(const Node &t) const
{
return val < t.val;
}
}a[1010];
LL d[N];
int n;
bool insert(LL x)
{
for (int i = 63; i >= 0; i -- )
{
if (x >> i & 1)
{
if (d[i]) x ^= d[i];
else
{
d[i] = x;
return true;
}
}
}
return false;
}
int main()
{
int res = 0;
scanf("%d", &n);
for (int i = 0; i < n; i ++ )
{
cin >> a[i].id >> a[i].val;
}
sort(a, a + n);
reverse(a, a + n);
for (int i = 0; i < n; i ++ )
{
if (insert(a[i].id)) res += a[i].val;
}
cout << res << endl;
return 0;
}
```
by _LPF_ @ 2021-03-22 00:17:34
@[_LPF_](/user/117941) 谢谢大佬！我只考虑了结果的范围，没考虑d数组，还是太年轻了啊
by XjascodoixjqoinOI @ 2021-03-22 16:50:29