Problem: In an
organization, the employees are grouped according to their basic pay for the
purpose of certain perks. The pay-range
and the number of employees in each group are as follows:
Group
Pay-Range Number of
Employees
1 750 - 1500 12
2 1501 - 3000
23
3 3001 - 4500
35
4 4501 - 6000
20
5 above 6000 11
Draw
a histogram to highlight the group sizes.
Problem Analysis: Given the size of groups, it is required to
draw bars representing the sizes of various groups. For each bar, its group number and size are
to be written.
Program in Fig.6.13 reads the number of employees
belonging to each group and draws a histogram.
The program uses four for
loops and two if.....else statements.
PROGRAM TO DRAW HISTOGRAM
Program:
#define N 5
main()
{
intvalue[N];
int
i, j, n, x;
for
(n=0; n < N; ++n)
{
printf("Enter employees in Group - %d : ",n+1);
scanf("%d", &x);
value[n] = x;
printf("%d\n", value[n]);
}
printf("\n");
printf(" |\n");
for
(n = 0 ; n < N ; ++n)
{
for (i = 1 ; i <= 3 ; i++)
{
if ( i == 2)
printf("Group-%1d
|",n+1);
else
printf(" |");
for (j = 1 ; j <= value[n]; ++j)
printf("*");
if (i == 2)
printf("(%d)\n",
value[n]);
else
printf("\n");
}
printf("
|\n");
}
}
Output
Enter
employees in Group - 1 : 12
12
Enter
employees in Group - 2 : 23
23
Enter
employees in Group - 3 : 35
35
Enter
employees in Group - 4 : 20
20
Enter
Employees in Group - 5 : 11
11
|
|************
Group-1 |************(12)
|************
|
|***********************
Group-2
|***********************(23)
|***********************
|
|***********************************
Group-3
|***********************************(35)
|***********************************
|
|********************
Group-4
|********************(20)
|********************
|
|***********
Group-5 |***********(11)
|***********
| 
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