diff --git a/problems/0034.在排序数组中查找元素的第一个和最后一个位置.md b/problems/0034.在排序数组中查找元素的第一个和最后一个位置.md
index e5266cd9..b4128166 100644
--- a/problems/0034.在排序数组中查找元素的第一个和最后一个位置.md
+++ b/problems/0034.在排序数组中查找元素的第一个和最后一个位置.md
@@ -739,6 +739,60 @@ class Solution {
 }
 ```
 
+### C
+```c
+int searchLeftBorder(int *nums, int numsSize, int target) {
+    int left = 0, right = numsSize - 1;
+    // 记录leftBorder没有被赋值的情况
+    int leftBorder = -1;
+    // 边界为[left, right]
+    while (left <= right) {
+        // 更新middle值，等同于middle = (left + right) / 2
+        int middle = left + ((right - left) >> 1);
+        // 若当前middle所指为target，将左边界设为middle，并向左继续寻找左边界
+        if (nums[middle] == target) {
+            leftBorder = middle;
+            right = middle - 1;
+        } else if (nums[middle] > target) {
+            right = middle - 1;
+        } else {
+            left = middle + 1;
+        }
+    }
+    return leftBorder;
+}
+int searchRightBorder(int *nums, int numsSize, int target) {
+    int left = 0, right = numsSize - 1;
+    // 记录rightBorder没有被赋值的情况
+    int rightBorder = -1;
+    while (left <= right) {
+        int middle = left + ((right - left) >> 1);
+        // 若当前middle所指为target，将右边界设为middle，并向右继续寻找右边界
+        if (nums[middle] == target) {
+            rightBorder = middle;
+            left = middle + 1;
+        } else if (nums[middle] > target) {
+            right = middle - 1;
+        } else {
+            left = middle + 1;
+        }
+    }
+    return rightBorder;
+}
+
+int* searchRange(int* nums, int numsSize, int target, int* returnSize){
+    int leftBorder = searchLeftBorder(nums, numsSize, target);
+    int rightBorder = searchRightBorder(nums, numsSize, target);
+
+    // 定义返回数组及数组大小
+    *returnSize = 2;
+    int *resNums = (int*)malloc(sizeof(int) * 2);
+    resNums[0] = leftBorder;
+    resNums[1] = rightBorder;
+    return resNums;
+}
+```
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
diff --git a/problems/0283.移动零.md b/problems/0283.移动零.md
index 42232cc0..fc708844 100644
--- a/problems/0283.移动零.md
+++ b/problems/0283.移动零.md
@@ -151,6 +151,24 @@ function moveZeroes(nums: number[]): void {
 };
 ```
 
+### C
+
+```c
+void moveZeroes(int* nums, int numsSize){
+    int fastIndex = 0, slowIndex = 0;
+    for (; fastIndex < numsSize; fastIndex++) {
+        if (nums[fastIndex] != 0) {
+            nums[slowIndex++] = nums[fastIndex];
+        }
+    }
+
+    // 将slowIndex之后的元素变为0
+    for (; slowIndex < numsSize; slowIndex++) {
+        nums[slowIndex] = 0;
+    }
+}
+```
+
 
 
 
diff --git a/problems/链表理论基础.md b/problems/链表理论基础.md
index da5a1b02..9dc45242 100644
--- a/problems/链表理论基础.md
+++ b/problems/链表理论基础.md
@@ -241,6 +241,16 @@ impl<T> ListNode<T> {
 ```
 
 
+### C:
+
+```c
+typedef struct ListNodeT {
+    int val;
+    struct ListNodeT next;
+} ListNode;
+```
+
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>