init commit

archive/algorithm/leetcode/344.c

@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+/**
+ * https://leetcode-cn.com/problems/reverse-string/description/
+ * 反转字符串
+ */
+char *reverseString(char *s)
+{
+    int len = strlen(s);
+    for (int i = 0; i < len/2; i++)
+    {
+        s[i] ^= s[len - 1 - i];
+        s[len - 1 - i] ^= s[i];
+        s[i] ^= s[len - 1 - i];
+    }
+    return s;
+}
+
+void print_r(int *a, int len)
+{
+    for (int i = 0; i < len; i++)
+    {
+        printf("%d\t", a[i]);
+    }
+    printf("\n");
+}
+
+int main()
+{
+    char s[] = "hello";
+    printf("%s\n", reverseString(s));
+    getchar();
+    return 0;
+}