started puzzle 1 again in c

1/puzzle1.c

@@ -1,40 +1,15 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <string.h>
-#define stringSize 20
 
-int listSize = 0;
-char readChar = '0';
-char stringOne[stringSize];
-char stringTwo[stringSize];
-
-int readIntoList(char *stringList) {
-    int index = 0;
-
-    while (1) {
-        char next = getchar();
-        if (next == '.') {
-            break;
-        } else if (next != '\n') {
-            stringList[index] = next;
-            index++;
-        }
-    }
-}
+FILE *puzzleFile;
 
 int main() {
-    printf("enter list size: \n");
 
-    scanf("%i", &listSize);
-    int listOne[listSize];
-    int listTwo[listSize];
+    puzzleFile = fopen("input.txt", "r");
+    if (puzzleFile==NULL){
+        printf("file unable to be opened");
+    }
 
-    memset(listOne, '\0', listSize);
-    memset(listTwo, '\0', listSize);
-    printf("enter list 1: \n");
-    readIntoList(stringOne);
-    printf("enter list 2: \n");
-    readIntoList(stringTwo);
-
-    printf("one: %s \ntwo: %s ", stringOne, stringTwo);
+    printf("helloworld");
 }