промежутое

programm8.cpp

@@ -0,0 +1,41 @@
+#include <fstream>
+#include <cstdlib>
+
+using namespace std;
+
+int main() {
+    ifstream fin("INPUT.TXT");
+    ofstream fout("OUTPUT.TXT");
+    
+    char start[10], end[10];
+    fin >> start >> end;
+    fin.close();
+    
+    int start_col = start[0] - 'a';
+    int start_row = start[1] - '1';
+    
+    int end_col = end[0] - 'a';
+    int end_row = end[1] - '1';
+    
+    int can_reach = 0;
+    
+    if (end_row > start_row) {
+        int diff_row = end_row - start_row;
+        int diff_col = end_col - start_col;
+        if (diff_col < 0) diff_col = -diff_col;
+        
+        if (diff_row == diff_col) {
+            can_reach = 1;
+        }
+    }
+    
+    if (can_reach) {
+        fout << "YES\n";
+    } else {
+        fout << "NO\n";
+    }
+    
+    fout.close();
+    
+    return 0;
+}