Stack multi

#include<stdio.h>
#include<string.h>
#include<stdlib.h>

typedef struct data
{
    int a;
    char c[100];
    struct data *next;
} data;

data *head=NULL;

void push()
{
    data *new_node=(data*)malloc(sizeof(data));
    printf("     Integer: ");
    scanf("%d",&new_node->a);
    printf("\n   Character: ");

    scanf(" %[^\n]s",new_node->c);

    new_node->next=NULL;

    if(head==NULL)
    {
        head=new_node;
        return;
    }
    new_node->next=head;
    head=new_node;

    return;

}

//data *copy=NULL;

void pop()
{
   if(head==NULL)
    {
        printf("   Nothing To POP Bro\n");
        return;
    }

//    copy->a=head->a;
//
//    strcpy(copy->c,head->c);

    data *del=head;

    printf("   POPPED: %d %s\n",head->a,head->c);

    head=head->next;

    free(del);
    return;
}

void top()
{
    if(head==NULL)
    {
        printf("    Top is Empty \n");
        return ;
    }

    printf("    Top: %d %s \n",head->a, head->c);

    return;
}



void reset()
{

    head=NULL;
    printf("    Reseted\n");
    return;
}

void print()
{
    data *temp=head;
    printf("   Result: ");
    if(head==NULL)
    {
        printf("Stack Empty");
    }
    while(temp!=NULL)
    {
        printf("%d %s",temp->a, temp->c);
        temp=temp->next;
    }
    printf("\n");
}

int main()
{
    int n;

    while(1)
    {

        printf("\n1.PUSH\n");
        printf("2.POP\n");
        printf("3.TOP\n");

        printf("4.PRINT\n");
        printf("9.RESET\n");
        printf("0.BREAK\n");

        printf("   Command: ");
        scanf("%d",&n);
        printf("\n");


        if(n==1)
        {
            push();
        }

        if(n==2)
        {
            pop();

        }
       if(n==3)
        {
            top();
        }
        if(n==4)
        {
            print();
        }
        if(n==9)
        {
            reset();
        }
        if(n==0)
        {
            printf("    Prgrm Clossed\n");
            break;
        }

    }

}