#define _CRT_SECURE_NO_WARNINGS #define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING #include using namespace std; const int N = 100010; int a[N]; int c[N]; #define lowbit(x) ((x) & -(x)) int get(int x) { int ans = 0; for (; x; x -= lowbit(x)) ans += c[x]; return ans; } void inc(int x) { for (; x < N; x += lowbit(x)) c[x]++; } int main() { multiset s; int T, n, avg; scanf("%d", &T); while (T--) { memset(c, 0, sizeof(c)); long long ans = 0; s.clear(); scanf("%d%d", &n, &avg); for (int i = 1; i <= n; i++) scanf("%d", a + i), a[i] = a[i] - avg + a[i - 1]; vector> v(n); for (int i = 1; i <= n; i++) v[i - 1] = {a[i], -i}; sort(begin(v), end(v)); for (auto &x : v) { ans += get(-x.second) + (x.first > 0); inc(-x.second); } printf("%lld\n", ans); } return 0; }