add problem 1

Author: supercoderhawk

C/1-Two-Sum.c

@@ -0,0 +1,20 @@
+#include 
+
+/*
+ * Note: The returned array must be malloced, assume caller calls free().
+ * Created by supercoderhawk on 2017/7/20.
+ */
+
+
+int* twoSum(int* nums, int numsSize, int target) {
+    int* indices = (int *)malloc(sizeof(int)*2);
+    for(int i = 0;i<numsSize-1;i++)
+    {
+        if (nums[i]+nums[i+1]== target)
+        {
+            indices[0] = i;
+            indices[1] = i + 1;
+        }
+    }
+    return indices;
+}