Update0134.加油站，添加C#

problems/0134.加油站.md

@@ -630,6 +630,29 @@ object Solution {
   }
 }
 ```
+### C#
+```csharp
+// 贪心算法，方法二
+public class Solution
+{
+    public int CanCompleteCircuit(int[] gas, int[] cost)
+    {
+        int curSum = 0, totalSum = 0, start = 0;
+        for (int i = 0; i < gas.Length; i++)
+        {
+            curSum += gas[i] - cost[i];
+            totalSum += gas[i] - cost[i];
+            if (curSum < 0)
+            {
+                start = i + 1;
+                curSum = 0;
+            }
+        }
+        if (totalSum < 0) return -1;
+        return start;
+    }
+}
+```
 
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