'commit'

TangDou/LuoGuBook/P1518.cpp

@@ -0,0 +1,43 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+const int N = 10;
+char g[N][N];
+
+int dx[] = {-1, 0, 1, 0};
+int dy[] = {0, 1, 0, -1};
+
+int main() {
+    int x1, y1, x2, y2;
+    for (int i = 0; i < 10; i++)
+        for (int j = 0; j < 10; j++) {
+            cin >> g[i][j];
+            if (g[i][j] == 'C') x1 = i, y1 = j;
+            if (g[i][j] == 'F') x2 = i, y2 = j;
+        }
+    int cd = 0, fd = 0;
+    int cnt = 0;
+    while (true) {
+        int tx = x1 + dx[cd], ty = y1 + dy[cd];
+        if (tx >= 10 || tx < 0 || ty >= 10
+            || ty < 0 || g[tx][ty] == '*')
+            cd = (cd + 1) % 4;
+        else
+            x1 = tx, y1 = ty;
+        tx = x2 + dx[fd], ty = y2 + dy[fd];
+        if (tx >= 10 || tx < 0 || ty >= 10 || ty < 0 || g[tx][ty] == '*')
+            fd = (fd + 1) % 4;
+        else
+            x2 = tx, y2 = ty;
+        cnt++;
+        if (x1 == x2 && y1 == y2) {
+            cout << cnt << endl;
+            break;
+        }
+        if (cnt > 10000) {
+            cout << 0 << endl;
+            break;
+        }
+    }
+    return 0;
+}