add aloha/2025maple

storage/aloha/cpp/2025maple-div1-C.cpp

@@ -0,0 +1,59 @@
+#define MAXN 50
+#include <iostream>
+
+using namespace std;
+
+char ansLine;
+int N, T, A[MAXN][MAXN], B[MAXN][MAXN], ansNum;
+
+void check();
+
+int main() {
+    ios_base::sync_with_stdio(0);
+    cin.tie(0); cout.tie(0);
+    
+    while (!cin.eof()) {
+        cin >> T;
+        
+        if (T == 1) {
+            cin >> N;
+            for (int i = 0; i < N; i++)
+                for (int j = 0; j < N; j++)
+                    cin >> A[i][j];
+            for (int i = 0; i < N; i++) cout << "H 1\n";
+            
+            if (N % 2)
+                for (int i = 0; i < N; i++) A[0][i] = !A[0][i];
+
+        } else if (T == 2) {
+            cin >> N;
+            for (int i = 0; i < N; i++)
+                for (int j = 0; j < N; j++)
+                    cin >> B[i][j];
+            
+            check();
+            if (ansNum == -1) cout << 0 << "\n";
+            else cout << 1 << "\n" << ansLine << " " << ansNum << "\n";
+        }
+
+    }
+}
+
+void check() {
+    int row = -1, col = -1;
+
+    for (int i = 0; i < N; i++) {
+        for (int j = 0; j < N; j++) {
+            if (A[i][j] != B[i][j]) {
+                if (row == i) ansLine = 'H';
+                else if (col == j) ansLine = 'V';
+
+                row = i, col = j;
+            }
+        }
+    }
+
+    if (ansLine == 'H') ansNum = row+1;
+    else if (ansLine == 'V') ansNum = col+1;
+    else ansNum = -1;
+}