#include <stdio.h>
    #include <stdlib.h>
    #include<unistd.h>
    #define N 100
    void printNChar(int n, char c);
    void barchart(int *, int, int, int);
   
    int main()
    {
      int a[N];
      int n;
      int maxP=0, minN = 0;
      printf("enter the sequence length: ");
      scanf("%d", &n);
   
      for(int i = 0 ; i < n ; i ++)
      {

        printf("enter a[%d]: ", i );
        scanf("%d", a + i );
        if( a[i] < 0 && a[i] < minN) {minN = a[i];}
        if( a[i] > 0 && a[i] > maxP) {maxP = a[i];}
      }

        printf("the bar chart is \n\n");
      barchart(a,n,maxP,minN);
      return 0;

      }

void barchart(int *a, int n, int maxP, int minN)
{
      for(int i = maxP; i > 0 ; i--)
      {
        
        for(int j = 0; j < n; j++)
        {
          if( a[j] >= i ) printf("#");
          else printf(" ");
        }
        printf("\n");
      }

      printNChar(n, '-');
      printf("\n");

      for(int i = -1; i >= minN ; i--)
      {
        
        for(int j = 0; j < n; j++)
        {
          if( i >= a[j] ) printf("#");
          else printf(" ");
        }
        printf("\n");
      
      }
  
   }
   void printNChar(int n, char c)
   {
     for(int i = 0; i < n; i++){printf("%c",c);}
     return;
   }