init commit

archive/algorithm/leetcode/14.c

@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+
+/**
+ * https://leetcode-cn.com/problems/longest-common-prefix/description/
+ * 最长公共前缀
+ */
+char *longestCommonPrefix(char strs[3][10], int strsSize)
+{
+    if (strsSize <= 0)
+    {
+        char *tmp = malloc(1);
+        tmp[0] = 0;
+        return tmp;
+    }
+    char *ret = strs[0];
+    for (int i = 1; i < strsSize; i++)
+    {
+        char *tmp = &strs[i][0], *tmp1 = ret;
+        int len = 0;
+        while (*tmp1 == *tmp && *tmp!=0)
+        {
+            len++;
+            tmp1++;
+            tmp++;
+        }
+        ret[len]=0;
+    }
+    return ret;
+}
+
+int main()
+{
+    char a[3][10] = {"aa", "aa", "aa"};
+    longestCommonPrefix(a, 3);
+    getchar();
+    return 0;
+}