diff --git a/S2OJ/1471/1471.cpp b/S2OJ/1471/1471.cpp
new file mode 100644
index 00000000..aa16fa3a
--- /dev/null
+++ b/S2OJ/1471/1471.cpp
@@ -0,0 +1,76 @@
+#include <iostream>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 100005;
+
+int n, m, a[N];
+long long ans;
+
+struct node {
+    int l, r, s;
+
+    node()
+        : l(0), r(0), s(0) {}
+
+    node(int _l, int _r)
+        : l(_l), r(_r), s(0) {}
+} tr[N << 2];
+
+void pushup(int u) {
+    tr[u].s = tr[u << 1].s | tr[u << 1 | 1].s;
+}
+
+void build(int u, int l, int r) {
+    tr[u] = node(l, r);
+
+    if (l == r) {
+        tr[u].s = a[l];
+
+        return;
+    }
+
+    int mid = l + r >> 1;
+
+    build(u << 1, l, mid);
+    build(u << 1 | 1, mid + 1, r);
+
+    pushup(u);
+}
+
+int query(int u, int l, int r) {
+    if (l <= tr[u].l && tr[u].r <= r) return tr[u].s;
+
+    int mid = tr[u].l + tr[u].r >> 1;
+    int res = 0;
+
+    if (l <= mid) res |= query(u << 1, l, r);
+    if (r > mid) res |= query(u << 1 | 1, l, r);
+
+    return res;
+}
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> n >> m;
+
+    for (int i = 1; i <= n; i++) {
+        cin >> a[i];
+    }
+
+    build(1, 1, n);
+
+    for (int i = 1, j = 1; i <= n; i++) {
+        while (j < i && query(1, j, i) >= m) j++;
+
+        ans += i - j;
+    }
+
+    cout << ans << endl;
+
+    return 0;
+}
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new file mode 100644
index 00000000..01cff954
--- /dev/null
+++ b/S2OJ/1471/data/evolve1.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6f43f350b56957865eb3ac2d47e6122ec7cd10e3177300dd227d6e73473c42be
+size 118
diff --git a/S2OJ/1471/data/evolve1.out b/S2OJ/1471/data/evolve1.out
new file mode 100644
index 00000000..d790bd49
--- /dev/null
+++ b/S2OJ/1471/data/evolve1.out
@@ -0,0 +1,3 @@
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diff --git a/S2OJ/1471/data/evolve10.in b/S2OJ/1471/data/evolve10.in
new file mode 100644
index 00000000..06b913cb
--- /dev/null
+++ b/S2OJ/1471/data/evolve10.in
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diff --git a/S2OJ/1471/data/evolve10.out b/S2OJ/1471/data/evolve10.out
new file mode 100644
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--- /dev/null
+++ b/S2OJ/1471/data/evolve10.out
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new file mode 100644
index 00000000..fad1625d
--- /dev/null
+++ b/S2OJ/1471/data/evolve2.in
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diff --git a/S2OJ/1471/data/evolve2.out b/S2OJ/1471/data/evolve2.out
new file mode 100644
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--- /dev/null
+++ b/S2OJ/1471/data/evolve2.out
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new file mode 100644
index 00000000..918ad66f
--- /dev/null
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new file mode 100644
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