diff --git a/problems/0406.根据身高重建队列.md b/problems/0406.根据身高重建队列.md
index b2354d09..9cefa11c 100644
--- a/problems/0406.根据身高重建队列.md
+++ b/problems/0406.根据身高重建队列.md
@@ -290,6 +290,53 @@ var reconstructQueue = function(people) {
 };
 ```
 
+### C
+```c
+int cmp(const void *p1, const void *p2) {
+    int *pp1 = *(int**)p1;
+    int *pp2 = *(int**)p2;
+    // 若身高相同，则按照k从小到大排列
+    // 若身高不同，按身高从大到小排列
+    return pp1[0] == pp2[0] ? pp1[1] - pp2[1] : pp2[0] - pp1[0];
+}
+
+// 将start与end中间的元素都后移一位
+// start为将要新插入元素的位置
+void moveBack(int **people, int peopleSize, int start, int end) {
+    int i;
+    for(i = end; i > start; i--) {
+        people[i] = people[i-1];
+    }
+}
+
+int** reconstructQueue(int** people, int peopleSize, int* peopleColSize, int* returnSize, int** returnColumnSizes){
+    int i;
+    // 将people按身高从大到小排列（若身高相同，按k从小到大排列）
+    qsort(people, peopleSize, sizeof(int*), cmp);
+
+    for(i = 0; i < peopleSize; ++i) {
+        // people[i]要插入的位置
+        int position = people[i][1];
+        int *temp = people[i];
+        // 将position到i中间的元素后移一位
+        // 注：因为已经排好序，position不会比i大。(举例：排序后people最后一位元素最小，其可能的k最大值为peopleSize-2，小于此时的i)
+        moveBack(people, peopleSize, position, i);
+        // 将temp放置到position处
+        people[position] = temp;
+
+    }
+    
+
+    // 设置返回二维数组的大小以及里面每个一维数组的长度
+    *returnSize = peopleSize;
+    *returnColumnSizes = (int*)malloc(sizeof(int) * peopleSize);
+    for(i = 0; i < peopleSize; ++i) {
+        (*returnColumnSizes)[i] = 2;
+    }
+    return people;
+}
+```
+
 
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 <div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>