C Program to find largest element in linked list

Simple C program to find largest element in linked list.

#include<stdio.h>
#include<stdlib.h>
#include<limits.h>
struct Node{
    int data;
    struct Node *next;
};
struct Node *head=NULL;  //global head node to use anywhere
void pushAtEnd(int n)
{
    struct Node *newNode=(struct Node*)malloc(sizeof(struct Node));
    struct Node *temp=head;
    newNode->data=n;
    newNode->next=NULL;
    if(head==NULL)
    {
        head=newNode;
    }
    else
    {
        while(temp->next!=NULL)
        temp=temp->next;
        temp->next=newNode;
 
 
    }
}
void printlist()
{
    struct Node *current=head;
    while(current!=NULL)
    {
        printf("%d ",current->data);
        current=current->next;
    }
    printf("\n");
}
int Maximum(struct Node *head)
{
	int max=INT_MIN;
	struct Node *temp=head;
	while(temp!=NULL)
	{
		if(max<temp->data)
 
			max=temp->data;
			temp=temp->next;
	}
	return max;
}
int main()
{
    pushAtEnd(2);
    pushAtEnd(3);
    pushAtEnd(4);
    pushAtEnd(5);
    pushAtEnd(7);
    printlist();
   printf("Max in linked list = %d",Maximum(head));
   printf("\n");
    pushAtEnd(24);
    pushAtEnd(32);
    pushAtEnd(4);
    pushAtEnd(50);
    pushAtEnd(77);
     printlist();
    printf("Max in linked list = %d",Maximum(head));
    return 0;
 
}