290

src/290.c

@@ -0,0 +1,73 @@
+#include <solution/290.h>
+#include <stdlib.h>
+#include <string.h>
+
+char *foundValue(char **d, char k)
+{
+    int idx = k - 'a';
+    return d[idx];
+}
+
+int foundKeyCount(char **d, char *v)
+{
+    int count = 0;
+    for (int i = 0; i < 26; i++)
+        if (d[i] && strcmp(v, d[i]) == 0)
+            count++;
+
+    return count;
+}
+
+void freeDict(char **d)
+{
+    for (int i = 0; i < 26; i++)
+        free(d[i]);
+    free(d);
+}
+
+int insertValue(char **d, char k, char *v)
+{
+    int idx = k - 'a';
+    if (d[idx] != NULL)
+        return -1;
+    d[idx] = malloc(strlen(v) + 1);
+    memcpy(d[idx], v, strlen(v) + 1);
+
+    return foundKeyCount(d, v);
+}
+
+bool preCheck(char *p, char *s)
+{
+    int s_count = 0;
+    for (; *s != '\0'; s++)
+        if (*s == ' ')
+            s_count++;
+    return s_count + 1 == strlen(p);
+}
+
+bool wordPattern(char *pattern, char *s)
+{
+    if (!preCheck(pattern, s))
+        return false;
+
+    char **d = calloc(26, sizeof(char *));
+    char *token = strtok(s, " ");
+
+    for (int i = 0; i < strlen(pattern) && token != NULL; i++, token = strtok(NULL, " "))
+    {
+        switch (insertValue(d, pattern[i], token))
+        {
+        case 1:
+            break;
+        case -1:
+            if (strcmp(token, foundValue(d, pattern[i])) == 0)
+                break;
+        default:
+            freeDict(d);
+            return false;
+        }
+    }
+
+    freeDict(d);
+    return true;
+}