stringsinglelinkedlist

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef struct node nd;
struct node
{
    int id;
    char name[80];
    nd *next;
};
nd *head=NULL;

void insertfirst(int id,char name[80])
{
    nd *newnode=(nd*)malloc(sizeof(nd));
    strcpy(newnode->name,name);
    newnode->id=id;
    newnode->next=head;
    head=newnode;
    return;
}
void insertmiddle(int n,int id,char name[80])
{
    nd *temp=head;
    nd *newnode=(nd*)malloc(sizeof(nd));
    strcpy(newnode->name,name);
    newnode->id=id;
    int i;
    for(i=0;i<(n-2);i++)
    {
        temp=temp->next;
    }
    nd *temp1=temp->next;
    temp->next=newnode;
    newnode->next=temp1;
    return;

}
void insertlast(int id,char name[80])
{
    nd *temp=head;
    nd *newnode=(nd*)malloc(sizeof(nd));
    strcpy(newnode->name,name);
    newnode->id=id;
    newnode->next=NULL;
    if(head==NULL)
    {
        head=newnode;
        return;
    }
    while(temp->next!=NULL)
    {
        temp=temp->next;
    }
    temp->next=newnode;
    return;
}
void delete(int id)
{
    nd *temp=head;
    int i,count=0;
    while(temp!=NULL)
    {
        count++;
        if(temp->id==id)
        {
            break;

        }
        temp=temp->next;
    }
    if(count==1)
    {
        head=temp->next;
        return;
    }
    nd *temp2=head;
    for(i=0;i<(count-2);i++)
    {
        temp2=temp2->next;
    }
    nd *temp1=temp2->next;
    temp2->next=temp1->next;
    return;
}
void search(int id)
{
    nd *temp=head;
    while(temp!=NULL)
    {
        if(temp->id==id)
        {
            printf("Number is found\n",temp->id);
            break;

        }
        temp=temp->next;
    }
    return;
}
void display()
{
    nd *temp=head;
    while(temp!=NULL)
    {
        printf("Id: %d Name: %s\n",temp->id,temp->name);
        temp=temp->next;
    }
    printf("\n");
}
int main()
{
    nd *temp=head;
    insertfirst(192152784,"Jamir Uddin Zidan");
    insertfirst(192152776,"Osman Goni");
    insertfirst(192152878,"Nahid Hasan");
    insertmiddle(2,192152886,"Akash Sarker");
    insertlast(192152774,"Mredul Hasan Pias");
    display();
    delete(192152776);
    display();
    search(192152784);
    display();
    return 0;
}