diff --git a/problems/0072.编辑距离.md b/problems/0072.编辑距离.md
index a15012d7..df57b5b8 100644
--- a/problems/0072.编辑距离.md
+++ b/problems/0072.编辑距离.md
@@ -364,6 +364,7 @@ function minDistance(word1: string, word2: string): number {
 
 C：
 
+
 ```c
 int min(int num1, int num2, int num3) {
     return num1 > num2 ? (num2 > num3 ? num3 : num2) : (num1 > num3 ? num3 : num1); 
@@ -376,7 +377,7 @@ int minDistance(char * word1, char * word2){
     for (int i = 1; i <= strlen(word2); i++) dp[0][i] = i;
 
     for (int i = 1; i <= strlen(word1); i++) {
-        for (int j = 1; j <=strlen(word2); j++) {
+        for (int j = 1; j <= strlen(word2); j++) {
             if (word1[i-1] == word2[j-1]) {
                 dp[i][j] = dp[i-1][j-1];
             }
@@ -389,7 +390,5 @@ int minDistance(char * word1, char * word2){
 }
 ```
 
-
-
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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>