init commit

archive/algorithm/leetcode/535.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char* hash[1024];
+/** Encodes a URL to a shortened URL. */
+char* encode(char* longUrl) {
+    char* ret = malloc(30);
+    int x = 0;
+    for (int i = 0; i < strlen(longUrl); i++) {
+        x += longUrl[i];
+    }
+    x %= 1024;
+    hash[x] = malloc(1024);
+    strcpy(hash[x], longUrl);
+    // if(strlen(hahs[x])>=3){
+
+    // }
+    sprintf(ret, "http://tinyurl.com/%d", x);
+    return ret;
+}
+
+/** Decodes a shortened URL to its original URL. */
+char* decode(char* shortUrl) {
+    const char* s = strrchr(shortUrl, '/');
+    int x = atoi(&s[1]);
+    return hash[x];
+}
+//直接返回原字符leetcode也是可以通过
+// Your functions will be called as such:
+// char* s = encode(s);
+// decode(s);
+
+int main() {
+    char* s = encode("https://leetcode.com/problems/design-tinyurl");
+    s = decode(s);
+    getchar();
+    return 0;
+}