Create, Display, Insert, Delete, Update in List [Array]

#include<stdio.h>

#include<conio.h>

int create();

int display(int [],int);

int insert(int [],int);

int delete_fromlist(int [],int);

int update(int [],int);

int a[100],n,i;

void main(){

create();

display(a,n);

insert(a,n);

delete_fromlist(a,n);

update(a,n);

getch();

}

int create(){

printf("Enter n: ");

scanf("%d",&n);

printf("Enter %d elements:\n",n);

for(i=0;i<n;i++)

scanf("%d",&a[i]);

}

int display(int a[],int n){

printf("Current array elements: ");

for(i=0;i<n;i++)

printf("%d\t",a[i]);

}

int insert(int a[],int n){

int pos, nel;

printf("\nEnter position where you want to insert: ");

scanf("%d",&pos);

printf("Enter new element: ");

scanf("%d",&nel);

if(pos>n)

printf("Invalid Position");

else{

for(i=n-1;i>=pos;i--)

a[i+1]=a[i];

a[pos]=nel;

n++;

display(a,n);

}

}

int delete_fromlist(int a[],int n){

int pos;

printf("\nEnter position where you want to delete: ");

scanf("%d",&pos);

if(pos>n)

printf("Invalid Position");

else{

for(i=pos;i<n;i++)

a[i]=a[i+1];

//n--;

display(a,n);

}

}

int update(int a[],int n){

int pos, nel;

printf("\nEnter position where you want to update: ");

scanf("%d",&pos);

printf("Enter new element: ");

scanf("%d",&nel);

if(pos>n)

printf("Invalid Position");

else{

a[pos]=nel;

display(a,n);

}

}