DS-lab1

#include<stdio.h>
#define size 5
int insert();
int rem();
int get();
int find();
int update();
int len();
int print();
int item[size], length=0,current=-1;

int main()
{

int i, choice;

for(;;)
{
    printf("\n\nInsert any \n");
    printf("1. Insert\n");
    printf("2. Remove \n");
    printf("3. Get \n");
    printf("4. find\n");
    printf("5. Update\n");
    printf("6. length \n");
    printf("7. Print \n");
    printf("0. Quit \n\t");


    scanf("%d",&choice);

    switch(choice)
    {
        case 1:
               insert();
               break;
        case 2:
               rem();
               break;
        case 3:
               get();
               break;

        case 4:
               find();
               break;
        case 5:
               update();
               break;
        case 6:
               len();
                break;
        case 7:
                print();
                break;
        case 0:
                 exit(0);
                 break;
        default:
                 break;
    }
}

}


int insert()
{

    if(length<size)
    {
    current++;
    printf("Enter the value ==>");
    scanf("%d",&item[current]);
    length=length+1;
    }
    else
    printf("\n\tOverflow\n");


}

int rem()
{
    if(length>0)
    {
    current--;
    length--;
    }
    else
    printf("\n\tUnderflow\n");
    }

int get()
{
   printf("\nCurrent value:\t%d\n",item[current]);
}
int find()
{
    int value,i;
    printf("value:");
    scanf("%d",&value);
    for(i=0;i<length;i++)
    {
        if(item[i]==value)
        {
        printf("\nIndex=%d",i);
        }

    }
}


int update()
{
    int index,value;
    printf("Index=");
    scanf("%d",&index);
    printf("\nNew Value=");
    scanf("%d",&value);
    item[index]=value;
}

int len()
{
    printf("Length=%d",length);
}
int print()
{
    int i;
    printf("\n\nThe array is: \n");
    for(i=0;i<length;i++)
        printf("%d ",item[i]);
}