arrays

I think the second array is supposed to be the number of occurrences of each character in the same order as the first array. However, there are some inaccuracies.

For example, there are 3 't's in the string and not 2 as shown in the second array.

Also not sure whether code is required in C or C#?

In C it would be:

#include

int main()

{

char char_array[40];

int char_count_array[40];

char s[] = "this is supposed to be one damn long character array";

int i = 0, j = 0, *pi;

char c, *pc;

while (c = s[i])

{

pc = strchr(char_array, c);

if (!pc)

{

char_array[j] = c;

char_count_array[j] = 1;

j++;

}

else

{

char_count_array[pc - char_array]++;

}

i++;

}

char_array[j] = '\0';

char_count_array[j] = 0;

/* print out arrays */

printf("\"");

pc = char_array;

while(*pc) printf("%c", *pc++);

printf("\"\n");

printf("{");

pi = char_count_array;

while(*pi) printf("%d,", *pi++);

printf("\b}");

return 0;

}

and in C#:

using System;

using System.Collections.Generic;

class Program

{

static void Main()

{

string s = "this is supposed to be one damn long character array";

var charList = new List();

var charCountList = new List();

int index;

foreach(char c in s)

{

index = charList.IndexOf(c);

if (index == -1)

{

charList.Add(c);

charCountList.Add(1);

}

else

{

charCountList[index]++;

}

char[] charArray = charList.ToArray();

int[] charCountArray = charCountList.ToArray();

// print out arrays

Console.Write("\"");

foreach(char c in charArray) Console.Write(c);

Console.WriteLine("\"");

Console.Write("{");

for(int i = 0; i < charCountArray.Length; i++)

{

Console.Write(charCountArray[i]);

if (i < charCountArray.Length - 1) Console.Write(",");

}

Console.WriteLine("}");

Console.ReadKey();

}

}

The output in both cases is:

"this upoedbnamlgcry"

{3,2,2,4,9,1,2,4,4,2,1,3,5,1,1,1,2,4,1}

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

dizar mejzini11y ago
thanx for the code...
Vulpes11y ago
I think the second array is supposed to be the number of occurrences of each character in the same order as the first array. However, there are some inaccuracies.

For example, there are 3 't's in the string and not 2 as shown in the second array.

Also not sure whether code is required in C or C#?

In C it would be:

#include
#include

int main()
{
char char_array[40];
int char_count_array[40];
char s[] = "this is supposed to be one damn long character array";
int i = 0, j = 0, *pi;
char c, *pc;

while (c = s[i])
{
pc = strchr(char_array, c);
if (!pc)
{
char_array[j] = c;
char_count_array[j] = 1;
j++;
}
else
{
char_count_array[pc - char_array]++;
}
i++;
}

char_array[j] = '\0';
char_count_array[j] = 0;

/* print out arrays */
printf("\"");
pc = char_array;
while(*pc) printf("%c", *pc++);
printf("\"\n");

printf("{");
pi = char_count_array;
while(*pi) printf("%d,", *pi++);
printf("\b}");

return 0;
}

and in C#:

using System;
using System.Collections.Generic;

class Program
{
static void Main()
{
string s = "this is supposed to be one damn long character array";
var charList = new List();
var charCountList = new List();
int index;

foreach(char c in s)
{
index = charList.IndexOf(c);
if (index == -1)
{
charList.Add(c);
charCountList.Add(1);
}
else
{
charCountList[index]++;
}
}

char[] charArray = charList.ToArray();
int[] charCountArray = charCountList.ToArray();

// print out arrays
Console.Write("\"");
foreach(char c in charArray) Console.Write(c);
Console.WriteLine("\"");

Console.Write("{");

for(int i = 0; i < charCountArray.Length; i++)
{
Console.Write(charCountArray[i]);
if (i < charCountArray.Length - 1) Console.Write(",");
}

Console.WriteLine("}");
Console.ReadKey();
}
}

The output in both cases is:

"this upoedbnamlgcry"
{3,2,2,4,9,1,2,4,4,2,1,3,5,1,1,1,2,4,1}
Shweta Lodha11y ago
dizar mejzini,
How are you calculating 2nd array:
{2,2,2,4,9,1,2,3,4,2,1,3,5,1,1,1,1,2,1}