修改顺序查找

.vscode/settings.json

@@ -5,6 +5,7 @@
         "xstring": "cpp",
         "xtree": "cpp",
         "xutility": "cpp",
-        "iosfwd": "cpp"
+        "iosfwd": "cpp",
+        "vector": "cpp"
     }
 }

Algorithm/SequentialSearch.h

@@ -1,9 +1,7 @@
 // 顺序查找
 int SequentialSearch(vector<int>& v, int k) {
-	int i = 0;
-	for (; i < v.size(); ++i)
+	for (int i = 0; i < v.size(); ++i)
 		if (v[i] == k)
 			return i;
-	if (i == v.size()) 
-		return -1;
+	return -1;
 }