Program of Searching and inserting a item in a linear array - using function

#include<stdio.h> #include<stdlib.h> int SEARCH(int LA[100], int N); int INSERT(int LA[100], int N); int SHOW(int LA[100], int N); int main()     {         int LA[100],i, N;         char ch;         printf("\nEnter how many array element: ");         scanf("%d", &N);         printf("\nEnter array elements:\n");         for(i=0;i<N;i++)           {               printf("\nElement no %d: ", i+1);               scanf("%d", &LA[i]);           }         menu:         {         printf("\nSelect your operation:\n") ;         printf("\n1: SEARCH an item");         printf("\n2: INSERT an element ");         printf("\n0: Exit\n ")         do{             ch=getche();             switch (ch) {                     case '1':                            SEARCH(LA, N);                            break;                     case '2':                             INSERT(LA, N);                             break;                     case '0':                              return 0 ;                     default:                              printf("\nWRONG option seleted \n\nPlease select Correct                                           Key: ");                 }         }while(ch!='1' && ch!='2'&& ch!='0');         }         goto menu;         return 0;     }   int SEARCH(int LA[100], int N)      {          int item,i=0, LOC=0;          printf("\nSearch ITEM: ");          scanf("%d", &item);          while(i!=N)              {                  if(LA[i]==item)                     {                         LOC=i+1;                         printf("\nITEM location: %d", LOC);                         break;                     }                   i++;              }         if(i==N && LOC==0)         printf("\nITEM is not existed !!!!!");           return 0;      }  int INSERT(int LA[100], int N)     {         int item, LOC, i;         printf("\nInserting ITEM: ");         scanf("%d", &item);         printf("\nInsearting Location: ");         scanf("%d",&LOC);         for(i=N-1; i>=LOC-1; i--)                 LA[i+1]=LA[i];         LA[LOC-1]=item;         SHOW(LA, N+1);         return 0;     } int SHOW(int LA[100], int N)    {        int i;        printf("\LINEAR ARRAY:\n");        for(i=0; i<N; i++)           printf("\t%d", LA[i]);        return 0;    }