diff --git a/problems/0279.完全平方数.md b/problems/0279.完全平方数.md
index a0e62d48..f7c06dbd 100644
--- a/problems/0279.完全平方数.md
+++ b/problems/0279.完全平方数.md
@@ -389,6 +389,30 @@ function numSquares(n: number): number {
 };
 ```
 
+## C
+
+```c
+#define min(a, b) ((a) > (b) ? (b) : (a))
+
+int numSquares(int n) {
+    int* dp = (int*)malloc(sizeof(int) * (n + 1));
+    for (int j = 0; j < n + 1; j++) {
+        dp[j] = INT_MAX;
+    }
+    dp[0] = 0;
+     // 遍历背包
+    for (int i = 0; i <= n; ++i) {
+        // 遍历物品
+        for (int j = 1; j * j <= i; ++j) {
+            dp[i] = min(dp[i - j * j] + 1, dp[i]);
+        }
+    }
+    return dp[n];
+}
+```
+
+
+
 ### Rust:
 
 ```rust
@@ -439,4 +463,3 @@ impl Solution {
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
 </a>
-
diff --git a/problems/0322.零钱兑换.md b/problems/0322.零钱兑换.md
index eae4ab3a..156b5ff3 100644
--- a/problems/0322.零钱兑换.md
+++ b/problems/0322.零钱兑换.md
@@ -352,6 +352,35 @@ func min(a, b int) int {
 
 ```
 
+## C
+
+```c
+#define min(a, b) ((a) > (b) ? (b) : (a))
+
+int coinChange(int* coins, int coinsSize, int amount) {
+    int* dp = (int*)malloc(sizeof(int) * (amount + 1));
+    for (int j = 0; j < amount + 1; j++) {
+        dp[j] = INT_MAX;
+    }
+    dp[0] = 0;
+    // 遍历背包
+    for(int i = 0; i <= amount; i++){
+        // 遍历物品
+        for(int j = 0; j < coinsSize; j++){
+            if(i - coins[j] >= 0 && dp[i - coins[j]] != INT_MAX){
+                dp[i] = min(dp[i], dp[i - coins[j]] + 1);
+            }
+        }
+    }
+    if(dp[amount] == INT_MAX){
+        return -1;
+    }
+    return dp[amount];
+}
+```
+
+
+
 ### Rust:
 
 ```rust
@@ -474,4 +503,3 @@ function coinChange(coins: number[], amount: number): number {
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
 </a>
-