Fix the invisible null value not transferring over in mult

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

src/main.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include "utils.h"
+#include <stdlib.h>
 
 /*
     Consider all integer combinations of ab for 2 ≤ a ≤ 5 and 2 ≤ b ≤ 5:
@@ -18,6 +19,14 @@
 */
 
 int main(int argc,char**argv) {
-    printf("%s",BigPow(3,7).str);
+    struct String*numbs=malloc(sizeof(struct String)*0);
+    int arrSize=0;
+    for (int a=2;a<=5;a++) {
+        for (int b=2;b<=20;b++) {
+            numbs=realloc(numbs,sizeof(struct String)*++arrSize);
+            numbs[arrSize-1]=BigPow(a,b);
+            printf("\n%s\n",numbs[arrSize-1].str);
+        }
+    }
     return 0;
 }

src/utils.c

@@ -43,17 +43,17 @@ struct String mult(struct String numb1, struct String numb2) {
             val[j]=addends[i][j]+'0';
         }
         sum=add((struct String){n1.length+1+i,val},sum);
-        //printf("%s\n",sum.str);
+        printf("\nAA:%s",sum.str);
     }
     if (sum.str[0]=='0') {
-        char*newStr=malloc(sum.length-1);
-        for (int i=1;i<sum.length;i++) {
+        char*newStr=malloc(sum.length);
+        for (int i=1;i<sum.length+1;i++) {
             newStr[i-1]=sum.str[i];
         }
         free(sum.str);
         sum=(struct String){sum.length-1,newStr};
     }
-    //printf("%s",sum.str);
+    printf("\nA:%s",sum.str);
     return sum;
 }