'commit'

TangDou/LanQiaoBei/LanQiaoBeiWhitePaper/4_RobotDfs.cpp

@@ -0,0 +1,28 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int m, n;
+
+int dx[2] = {0, 1};
+int dy[2] = {1, 0};
+int cnt;
+
+void dfs(int x, int y) {
+    if (x == m && y == n) {
+        cnt++;
+        return;
+    }
+    for (int i = 0; i < 2; i++) {
+        int tx = x + dx[i], ty = y + dy[i];
+        if (tx <= m && ty <= n)
+            dfs(tx, ty);
+    }
+}
+
+int main() {
+    cin >> m >> n;
+    dfs(1, 1);
+    printf("%d", cnt);
+    return 0;
+}