Update 0072.编辑距离 添加C语言版本

problems/0072.编辑距离.md

@@ -362,6 +362,33 @@ 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); 
+}
+
+int minDistance(char * word1, char * word2){
+    int dp[strlen(word1)+1][strlen(word2)+1];
+    dp[0][0] = 0;
+    for (int i = 1; i <= strlen(word1); i++) dp[i][0] = i;
+    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++) {
+            if (word1[i-1] == word2[j-1]) {
+                dp[i][j] = dp[i-1][j-1];
+            }
+            else {
+                dp[i][j] = min(dp[i-1][j-1], dp[i][j-1], dp[i-1][j]) + 1;
+            }
+        }
+    }
+    return dp[strlen(word1)][strlen(word2)];
+}
+```
+
 
 
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