diff --git a/S2OJ/929/929.cpp b/S2OJ/929/929.cpp
new file mode 100644
index 00000000..fe6880e2
--- /dev/null
+++ b/S2OJ/929/929.cpp
@@ -0,0 +1,48 @@
+#include <iostream>
+#include <string>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 1e6 + 5;
+
+int t, n;
+int cnt, len[N];
+int cnt_odd, cnt_even;
+std::string s;
+long long ans;
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    cin >> t >> n >> s;
+
+    s = ' ' + s;
+
+    len[0] = 1;
+    for (int i = 1; i <= n; i++) {
+        len[s[i] == '1' ? ++cnt : cnt]++;
+    }
+
+    for (int i = 1; i <= cnt; i++) {
+        if (i % 2 == 1) {
+            ans += static_cast<long long>(cnt_even) * len[i];
+            cnt_even += len[i - 1];
+        } else {
+            ans += static_cast<long long>(cnt_odd) * len[i];
+            cnt_odd += len[i - 1];
+        }
+    }
+
+    for (int i = 1; i <= cnt; i++) {
+        if (len[i - 1] > 1 && len[i] > 1) {
+            ans += static_cast<long long>(len[i - 1] - 1) * (len[i] - 1);
+        }
+    }
+
+    cout << ans << endl;
+
+    return 0;
+}
diff --git a/S2OJ/929/data/ex_puzzle1.in b/S2OJ/929/data/ex_puzzle1.in
new file mode 100644
index 00000000..0da461c1
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle1.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1407dfb40202e64a517f0140e8ba18964a6bb6be05d208fe6afe11444aef754f
+size 12
diff --git a/S2OJ/929/data/ex_puzzle1.out b/S2OJ/929/data/ex_puzzle1.out
new file mode 100644
index 00000000..f2baf931
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle1.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 2
diff --git a/S2OJ/929/data/ex_puzzle2.in b/S2OJ/929/data/ex_puzzle2.in
new file mode 100644
index 00000000..755c4a2d
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle2.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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+size 1998
diff --git a/S2OJ/929/data/ex_puzzle2.out b/S2OJ/929/data/ex_puzzle2.out
new file mode 100644
index 00000000..89b8dfb5
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle2.out
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diff --git a/S2OJ/929/data/ex_puzzle3.in b/S2OJ/929/data/ex_puzzle3.in
new file mode 100644
index 00000000..3b95c532
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle3.in
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+size 99936
diff --git a/S2OJ/929/data/ex_puzzle3.out b/S2OJ/929/data/ex_puzzle3.out
new file mode 100644
index 00000000..bbfd2c50
--- /dev/null
+++ b/S2OJ/929/data/ex_puzzle3.out
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new file mode 100644
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--- /dev/null
+++ b/S2OJ/929/data/problem.conf
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diff --git a/S2OJ/929/data/puzzle1.in b/S2OJ/929/data/puzzle1.in
new file mode 100644
index 00000000..f5700914
--- /dev/null
+++ b/S2OJ/929/data/puzzle1.in
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new file mode 100644
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--- /dev/null
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new file mode 100644
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--- /dev/null
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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--- /dev/null
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new file mode 100644
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