diff --git a/.gitignore b/.gitignore
index c33802f..77bbc60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,4 +37,6 @@ __pycache__
 target
 
 state.yml
-config.yml
\ No newline at end of file
+config.yml
+
+.python-version
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-A.cpp b/storage/aloha/cpp/2025hcpc-div1-A.cpp
new file mode 100644
index 0000000..53e97b9
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-A.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+
+#include <stddef.h>
+#include <stdint.h>
+#include <vector>
+
+using namespace std;
+
+int main() {
+    size_t n;
+
+    cin >> n;
+
+    vector<uint64_t> tastes;
+    uint64_t temp;
+    for (size_t i = 0; i < n; i++) {
+        cin >> temp;
+        tastes.push_back(temp);
+    }
+
+    // pop_front
+    // pop_back
+    // push_back
+    // push_front
+}
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-B.cpp b/storage/aloha/cpp/2025hcpc-div1-B.cpp
new file mode 100644
index 0000000..b7f6653
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-B.cpp
@@ -0,0 +1,3 @@
+#include <iostream>
+
+using namespace std;
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-C.cpp b/storage/aloha/cpp/2025hcpc-div1-C.cpp
new file mode 100644
index 0000000..0dadb13
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-C.cpp
@@ -0,0 +1,39 @@
+#define MAX_N 200'000
+#include <iostream>
+
+using namespace std;
+using ll = long long;
+
+ll ans;
+int N, M;
+ll sum[MAX_N+1][26];
+string S, T;
+
+void init();
+void solve();
+
+int main() {
+    ios_base::sync_with_stdio(0);
+    cin.tie(0); cout.tie(0);
+
+    init();
+    solve();
+    cout << ans << "\n";
+}
+
+void init() {
+    cin >> N >> M;
+    cin >> S >> T;
+}
+void solve() {
+    for (int i = 0; i < S.size(); i++) {
+        char c = S[i];
+        for (int j = 0; j < 26; j++) sum[i+1][j] = sum[i][j];
+        sum[i+1][c-'a']++;
+    }
+
+    for (int i = 0; i < T.size(); i++) {
+        char c = T[i];
+        ans += sum[S.size()-T.size()+i + 1][c-'a'] - sum[i][c-'a'];
+    }
+}
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-D.cpp b/storage/aloha/cpp/2025hcpc-div1-D.cpp
new file mode 100644
index 0000000..1d1cfb1
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-D.cpp
@@ -0,0 +1,52 @@
+#include <iostream>
+
+using namespace std;
+using ll = long long;
+
+ll N;
+ll ans;
+
+void init();
+void solve();
+
+int main() {
+    ios_base::sync_with_stdio(0);
+    cin.tie(0); cout.tie(0);
+
+    init();
+    solve();
+    cout << ans << "\n";
+}
+
+void init() {
+    cin >> N;
+}
+void solve() {
+    ll temp = 0;
+
+    if (N % 6 == 0) {
+        temp += N*(N-1)*(N-2) / 6;
+        temp -= N/3;
+        temp -= ((N-4)/2) * N;
+        temp /= N;
+        temp += (N-2)/2;
+    } else if (N % 3 == 0) {
+        temp += N*(N-1)*(N-2) / 6;
+        temp -= N/3;
+        temp -= ((N-3)/2) * N;
+        temp /= N;
+        temp += (N-1)/2;
+    } else if (N % 2 == 0){
+        temp += N*(N-1)*(N-2) / 6;
+        temp -= ((N-2)/2)*N;
+        temp /= N;
+        temp += (N-2)/2;
+    } else {
+        temp += N*(N-1)*(N-2) / 6;
+        temp -= ((N-1)/2) * N;
+        temp /= N;
+        temp += (N-1)/2;
+    }
+
+    ans = temp;
+}
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-F.cpp b/storage/aloha/cpp/2025hcpc-div1-F.cpp
new file mode 100644
index 0000000..a05cceb
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-F.cpp
@@ -0,0 +1,11 @@
+#include <malloc.h>
+#include <stdint.h>
+#include <stdio.h>
+
+int main() {
+    uint64_t n;
+
+    scanf("%d", &n);
+    double p = (n - 1) * (n) / (double) 4;
+    printf("%f\n", p);
+}
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-G.cpp b/storage/aloha/cpp/2025hcpc-div1-G.cpp
new file mode 100644
index 0000000..dad7b22
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-G.cpp
@@ -0,0 +1,43 @@
+#include <algorithm>
+#include <iostream>
+#include <queue>
+#include <stdint.h>
+#include <stdlib.h>
+
+using namespace std;
+
+typedef struct Node {
+    int value;
+    struct Node *left;
+    struct Node *right;
+    bool status;
+} Node;
+
+int main() {
+    cin.tie(NULL);
+    ios_base::sync_with_stdio(0);
+    
+    auto data = new vector<int>;
+    auto pq = new vector<int>;
+
+    uint64_t n;
+    int temp;
+    cin >> n;
+    cin >> temp;
+    pq->push_back(temp);
+    cout << 1 << "\n";
+
+    Node * node = NULL;
+    for (size_t i = 1; i < n; i ++) {
+        cin >> temp;
+        pq->push_back(temp);
+    }
+
+
+    if (node == NULL) {
+        cout << 1 << "\n";
+    }
+    
+    delete pq;
+    delete data;
+}
\ No newline at end of file
diff --git a/storage/aloha/cpp/2025hcpc-div1-H.cpp b/storage/aloha/cpp/2025hcpc-div1-H.cpp
new file mode 100644
index 0000000..0092403
--- /dev/null
+++ b/storage/aloha/cpp/2025hcpc-div1-H.cpp
@@ -0,0 +1,59 @@
+#include <iostream>
+
+using namespace std;
+
+int N;
+
+void init();
+void solve();
+void func(int m);
+
+int main() {
+    ios_base::sync_with_stdio(0);
+    cin.tie(0); cout.tie(0);
+
+    init();
+    solve();
+}
+
+void init() {
+    cin >> N;
+}
+void solve() {
+    cout << "Yes" << "\n";
+
+    if (N % 2 == 0) {
+        func(N / 2);
+        
+    } else if (N % 2 == 1) {
+        func(N / 2);
+        cout << 0;
+
+    }
+}
+void func(int m) {
+    int k = m / 2;
+
+    if (m % 2 == 0) {
+        if (k % 2 == 0) {
+            for (int i = 1; i <= m; i++) {
+                if (i % 2) cout << i << " " << -i << " ";
+                else cout << -i << " " << i << " ";
+            }
+        } else if (k % 2 == 1) {
+
+        }
+
+    } else if (m % 2 == 1) {
+        if (k % 2 == 0) {
+            cout << -2 << " " << 1 << " ";
+            for (int i = 3; i <= m+1; i++) {
+                if (i % 2) cout << i << " " << -i << " ";
+                else cout << -i << " " << i << " ";
+            }
+        } else if (k % 2 == 1) {
+
+
+        }
+    }
+}
\ No newline at end of file