new file: P17827.cpp

P17827.cpp

@@ -0,0 +1,24 @@
+#include <bits/stdc++.h>
+using namespace std;
+int side(char c) {
+    if (c == 'A' || c == 'B' || c == 'C') return 0;
+    return 1;
+}
+int pos(char c) {
+    if (c == 'A') return 0;
+    if (c == 'B') return 1;
+    if (c == 'C') return 2;
+    if (c == 'D') return 0;
+    return 1; // 'F'
+}
+int main() {
+    string c1, s1, c2, s2;
+    cin >> c1 >> s1 >> c2 >> s2;
+    bool ans1 = (c1 == c2);
+    bool ans2 = ans1 && (s1.substr(0, 2) == s2.substr(0, 2));
+    char a = s1[2], b = s2[2];
+    bool ans3 = ans2 && (side(a) == side(b));
+    bool ans4 = ans3 && (abs(pos(a) - pos(b)) == 1);
+    cout << ans1 << ans2 << ans3 << ans4 << '\n';
+    return 0;
+}