arrays - search and sorting in c program? -

i writing program receives numbers client , sort them bubble sorting function , other function receive 1 number client , search between other number binary search function .please inform me problem of program is?

#include <stdio.h>  int bobsort (int); int searchi (int);  void main () {      int num, i;     printf ("enter count number \n");     scanf ("%d", &num);     int array[num];     (i = 1; <= num; i++) {         printf ("enter number %d \n", i);         scanf ("%d", &array[i - 1]);     }      bobsort (num);     searchi (num);      getch ();  //return 0; }  //**** function bobsort void bobsort (int n) {     int c, d, swap;     (c = 0; c < (n - 1); c++) {         (d = 0; d < n - c - 1; d++) {             if (array[d] > array[d + 1]) {      /* decreasing order use < */                 swap = array[d];                 array[d] = array[d + 1];                 array[d + 1] = swap;             }         }     }      printf ("sorted list in ascending order:\n");      (c = 0; c < n; c++)         printf ("%d\n", array[c]);      // return 0; }  //**** function search int searchi () {     int c, first, last, middle, n, search;      printf ("enter value find\n");     scanf ("%d", &search);      first = 0;     last = n - 1;     middle = (first + last) / 2;      while (first <= last) {         if (array[middle] < search)             first = middle + 1;         else if (array[middle] == search) {             printf ("%d found @ location %d.\n", search, middle + 1);             break;         } else             last = middle - 1;          middle = (first + last) / 2;     }     if (first > last)         printf ("not found! %d not present in list.\n", search);      return 0; } 

you had several compilation errors, below rewrote code comments can compile. actual functions seem work fine

the important change passing array both functions. passed int* functions can modify array in context of main

#include <stdio.h>  // neither 1 of these need return value, both void // both need have array passed, added int* void bobsort(int, int*); void searchi(int, int*);  int main() {     int num, i;      printf("enter count number\n");     scanf("%d", &num);      int array[num];     (i = 1; <= num; i++) {         printf("enter number %d\n", i);         scanf("%d", &array[i-1]);     }      // pass array both functions     bobsort(num, array);     searchi(num, array);      // don't know supposed be, commented out     //getch();      return 0; }  // receives array main void bobsort(int num, int* array) {     int c, d, swap;     (c = 0; c < num-1; c++) {         (d = 0; d < num-c-1; d++) {             if (array[d] > array[d+1]) {                 swap = array[d];                 array[d] = array[d+1];                 array[d+1] = swap;             }         }     }      printf("sorted list in ascending order:\n");     (c = 0 ; c < num; c++)         printf("%d\n", array[c]); }  // receives array main void searchi(int num, int* array) {     int c, first, last, middle, search;      printf("enter value find\n");     scanf("%d", &search);      first = 0;     last = num-1;     middle = (first+last)/2;      while (first <= last) {         if (array[middle] < search)             first = middle+1;         else if (array[middle] == search) {             printf("%d found @ location %d\n", search, middle+1);             break;         }         else             last = middle-1;          middle = (first+last)/2;     }     if (first > last)         printf("not found! %d not present in list\n", search); }