feat: 添加随机生成数据按钮

Author: CC11001100

src/components/InputPanel.css

@@ -48,9 +48,9 @@
   font-size: 13px;
 }
 
-.run-button {
+.run-button,
+.random-button {
   padding: 6px 16px;
-  background: #0e639c;
   color: white;
   border: none;
   border-radius: 4px;
@@ -59,10 +59,26 @@
   transition: background 0.2s;
 }
 
+.run-button {
+  background: #0e639c;
+}
+
 .run-button:hover {
   background: #1177bb;
 }
 
 .run-button:active {
   background: #0d5a8c;
 }
+
+.random-button {
+  background: #6a4c93;
+}
+
+.random-button:hover {
+  background: #7d5ba6;
+}
+
+.random-button:active {
+  background: #5a3d7a;
+}

src/components/InputPanel.tsx

@@ -50,6 +50,33 @@ export default function InputPanel({
     }
   };
 
+  const generateRandom = () => {
+    // 随机课程数量 3-8
+    const num = Math.floor(Math.random() * 6) + 3;
+    
+    // 生成随机 DAG（有向无环图）
+    const prereqs: number[][] = [];
+    const edgeCount = Math.floor(Math.random() * (num * 2)) + 1;
+    const existingEdges = new Set<string>();
+    
+    for (let i = 0; i < edgeCount; i++) {
+      // 确保 from > to 来避免环
+      const to = Math.floor(Math.random() * (num - 1));
+      const from = Math.floor(Math.random() * (num - to - 1)) + to + 1;
+      const key = `${from}-${to}`;
+      
+      if (!existingEdges.has(key)) {
+        existingEdges.add(key);
+        prereqs.push([from, to]);
+      }
+    }
+    
+    setNumCourses(num.toString());
+    setPrerequisites(JSON.stringify(prereqs));
+    setError(null);
+    onSubmit(num, prereqs);
+  };
+
   return (
     <div className="input-panel">
       <div className="input-group">
@@ -75,6 +102,9 @@ export default function InputPanel({
       <button className="run-button" onClick={handleSubmit}>
         运行
       </button>
+      <button className="random-button" onClick={generateRandom}>
+        🎲 随机生成
+      </button>
     </div>
   );
 }