feat: update structure

cs2106/labs/lab1/part1/testr.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include "queue.h"
+
+int main() {
+
+    int i;
+    for(i=1; i<=9; i++)
+    {
+        printf("Enqueing %d\n", i);
+        enq((double) i);
+    }
+
+    printf("\nCalling reduce result is %3.2f\n", reduce());
+
+/* Uncomment the following two statements to test flex_reduce */
+
+   printf("Calling flex reduce with sum. Result is %3.2f\n", flex_reduce(clear_sum, sum));
+   printf("Calling flex reduce with prod. Result is %3.2f\n", flex_reduce(clear_prod, prod));
+}
+