第三个点RE，还能改么

#include #include using namespace std; long int n, c, a[200005], ans; int e[130000000]; int main() { cin >> n >> c; for (int i = 1 ; i <= n; i++) { cin >> a[i]; e[a[i]]++; } for (int i = 1 ; i <= n; i++) ans += e[a[i] + c]; cout << ans; }