// To implement insertion sort

#include <stdio.h>
#include <stdlib.h>
#define MAX 20

void display(int a[], int n){
    int i;
    printf("\n Elements in array: ");
    for( i=0; i<n; i++)
        printf(" %d ", a[i]);
}

void sort(int ary[], int n){
    int i, j, tmp;
    
    for( i=1; i<n; i++){
        tmp = ary[i];
        for( j=i-1; j>=0 && ary[j]>tmp; j--)
            ary[j+1] = ary[j];
        ary[j+1] = tmp;
    }
}

int main(){
    int a[20];
    int n, i;
    
    printf("\n Enter total number of elements in array (max. %d): ", MAX);
    scanf("%d", &n);
    
    if( n < 0)
        printf("UNDERFLOW \n");
    else if( n > MAX)
        printf("OVERFLOW \n");
    else{
        // input elements one by one
        printf("\n Enter item(s) one by one\n");
        for( i=0; i<n; i++){
            printf(" Enter item no %d : ",i);
            scanf("%d", &a[i]);
        }
        
        printf("\n Before Sorting");
        display(a,n);
        sort( a, n);
        printf("\n After Sorting");
        display(a,n);
        printf("\n ");
    }
        
    system("pause");
    return 0;
}