Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread saurabh singh
Things can go very bad in case the string length is large and mostly of non
priniting chars.
and wat if there are chars with negative ascii value?does ur logic handles
this situation?I doubt it does,

On Fri, Jul 29, 2011 at 8:21 PM, snehi jain  wrote:

> no problem ..
> but can u find a bug in this technique ..
>
>
> On Fri, Jul 29, 2011 at 8:17 PM, saurabh singh wrote:
>
>> ignore above status...i was looking at two problems
>> simulataneously...posted on the wrong one...
>> apologies...really its embarrasing.
>>
>> On Fri, Jul 29, 2011 at 8:11 PM, snehi jain wrote:
>>
>>> thanks ..
>>> @siddhartha : i know the hashing technique ... and the problem of longer
>>> strings can be reduced by subtracting a large constant value from the ASCII
>>> value of all the characters .. and its not only with cubes even if u add
>>> squares of ascii values ... i think it will work .
>>>
>>> @saurabh : in what context should i use bitfield ...
>>>
>>>
>>>
>>> On Fri, Jul 29, 2011 at 7:36 PM, saurabh singh wrote:
>>>
 use a bitfield to optimize space


 On Fri, Jul 29, 2011 at 7:14 PM, Siddharth kumar <
 siddhartha.baran...@gmail.com> wrote:

> #include
> #include
>
> using namespace std;
>
> int main()
> {
> char str1[] =
> "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
> char str2[] =
> "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
> int len1 = strlen(str1), len2 = strlen(str2);
>
> if(len1 != len2)
> {
> cout<<"Both are not anagram of each other.";
> return 0;
> }
> else
> {
> int rep_char1[26] = {0}, rep_char2[26] = {0}, i;
>
> for(i=0; i {
> rep_char1[str1[i]-'a']++;
> rep_char2[str2[i]-'a']++;
> }
>
>  for(i=0; i<26; i++)
> if(rep_char1[i] != rep_char2[i])
> {
> cout<<"Both are not anagram of each other.";
> return 0;
> }
>
> cout<<"Both are anagram of each other.";
> }
> return 0;
> }
>
>
>
> --
> Siddharth Kumar
> BE 4th year, Computer Engineering
> (Delhi College of Engineering)
> +919711559760
>
>  --
> You received this message because you are subscribed to the Google
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>



 --
 Saurabh Singh
 B.Tech (Computer Science)
 MNNIT ALLAHABAD



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>>
>>
>>
>> --
>> Saurabh Singh
>> B.Tech (Computer Science)
>> MNNIT ALLAHABAD
>>
>>
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-- 
Saurabh Singh
B.Tech (Computer Science)
MNNIT ALLAHABAD

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Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread snehi jain
no problem ..
but can u find a bug in this technique ..

On Fri, Jul 29, 2011 at 8:17 PM, saurabh singh  wrote:

> ignore above status...i was looking at two problems
> simulataneously...posted on the wrong one...
> apologies...really its embarrasing.
>
> On Fri, Jul 29, 2011 at 8:11 PM, snehi jain  wrote:
>
>> thanks ..
>> @siddhartha : i know the hashing technique ... and the problem of longer
>> strings can be reduced by subtracting a large constant value from the ASCII
>> value of all the characters .. and its not only with cubes even if u add
>> squares of ascii values ... i think it will work .
>>
>> @saurabh : in what context should i use bitfield ...
>>
>>
>>
>> On Fri, Jul 29, 2011 at 7:36 PM, saurabh singh wrote:
>>
>>> use a bitfield to optimize space
>>>
>>>
>>> On Fri, Jul 29, 2011 at 7:14 PM, Siddharth kumar <
>>> siddhartha.baran...@gmail.com> wrote:
>>>
 #include
 #include

 using namespace std;

 int main()
 {
 char str1[] =
 "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
 char str2[] =
 "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
 int len1 = strlen(str1), len2 = strlen(str2);

 if(len1 != len2)
 {
 cout<<"Both are not anagram of each other.";
 return 0;
 }
 else
 {
 int rep_char1[26] = {0}, rep_char2[26] = {0}, i;

 for(i=0; i>>> {
 rep_char1[str1[i]-'a']++;
 rep_char2[str2[i]-'a']++;
 }

  for(i=0; i<26; i++)
 if(rep_char1[i] != rep_char2[i])
 {
 cout<<"Both are not anagram of each other.";
 return 0;
 }

 cout<<"Both are anagram of each other.";
 }
 return 0;
 }



 --
 Siddharth Kumar
 BE 4th year, Computer Engineering
 (Delhi College of Engineering)
 +919711559760

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>>>
>>>
>>>
>>> --
>>> Saurabh Singh
>>> B.Tech (Computer Science)
>>> MNNIT ALLAHABAD
>>>
>>>
>>>
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>>
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>
>
>
> --
> Saurabh Singh
> B.Tech (Computer Science)
> MNNIT ALLAHABAD
>
>
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Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread saurabh singh
ignore above status...i was looking at two problems simulataneously...posted
on the wrong one...
apologies...really its embarrasing.

On Fri, Jul 29, 2011 at 8:11 PM, snehi jain  wrote:

> thanks ..
> @siddhartha : i know the hashing technique ... and the problem of longer
> strings can be reduced by subtracting a large constant value from the ASCII
> value of all the characters .. and its not only with cubes even if u add
> squares of ascii values ... i think it will work .
>
> @saurabh : in what context should i use bitfield ...
>
>
>
> On Fri, Jul 29, 2011 at 7:36 PM, saurabh singh wrote:
>
>> use a bitfield to optimize space
>>
>>
>> On Fri, Jul 29, 2011 at 7:14 PM, Siddharth kumar <
>> siddhartha.baran...@gmail.com> wrote:
>>
>>> #include
>>> #include
>>>
>>> using namespace std;
>>>
>>> int main()
>>> {
>>> char str1[] = "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
>>> char str2[] = "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
>>> int len1 = strlen(str1), len2 = strlen(str2);
>>>
>>> if(len1 != len2)
>>> {
>>> cout<<"Both are not anagram of each other.";
>>> return 0;
>>> }
>>> else
>>> {
>>> int rep_char1[26] = {0}, rep_char2[26] = {0}, i;
>>>
>>> for(i=0; i>> {
>>> rep_char1[str1[i]-'a']++;
>>> rep_char2[str2[i]-'a']++;
>>> }
>>>
>>>  for(i=0; i<26; i++)
>>> if(rep_char1[i] != rep_char2[i])
>>> {
>>> cout<<"Both are not anagram of each other.";
>>> return 0;
>>> }
>>>
>>> cout<<"Both are anagram of each other.";
>>> }
>>> return 0;
>>> }
>>>
>>>
>>>
>>> --
>>> Siddharth Kumar
>>> BE 4th year, Computer Engineering
>>> (Delhi College of Engineering)
>>> +919711559760
>>>
>>>  --
>>> You received this message because you are subscribed to the Google Groups
>>> "Algorithm Geeks" group.
>>> To post to this group, send email to algogeeks@googlegroups.com.
>>> To unsubscribe from this group, send email to
>>> algogeeks+unsubscr...@googlegroups.com.
>>> For more options, visit this group at
>>> http://groups.google.com/group/algogeeks?hl=en.
>>>
>>
>>
>>
>> --
>> Saurabh Singh
>> B.Tech (Computer Science)
>> MNNIT ALLAHABAD
>>
>>
>>
>>  --
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>> "Algorithm Geeks" group.
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>> algogeeks+unsubscr...@googlegroups.com.
>> For more options, visit this group at
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>>
>
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>



-- 
Saurabh Singh
B.Tech (Computer Science)
MNNIT ALLAHABAD

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Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread snehi jain
thanks ..
@siddhartha : i know the hashing technique ... and the problem of longer
strings can be reduced by subtracting a large constant value from the ASCII
value of all the characters .. and its not only with cubes even if u add
squares of ascii values ... i think it will work .

@saurabh : in what context should i use bitfield ...



On Fri, Jul 29, 2011 at 7:36 PM, saurabh singh  wrote:

> use a bitfield to optimize space
>
>
> On Fri, Jul 29, 2011 at 7:14 PM, Siddharth kumar <
> siddhartha.baran...@gmail.com> wrote:
>
>> #include
>> #include
>>
>> using namespace std;
>>
>> int main()
>> {
>> char str1[] = "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
>> char str2[] = "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
>> int len1 = strlen(str1), len2 = strlen(str2);
>>
>> if(len1 != len2)
>> {
>> cout<<"Both are not anagram of each other.";
>> return 0;
>> }
>> else
>> {
>> int rep_char1[26] = {0}, rep_char2[26] = {0}, i;
>>
>> for(i=0; i> {
>> rep_char1[str1[i]-'a']++;
>> rep_char2[str2[i]-'a']++;
>> }
>>
>>  for(i=0; i<26; i++)
>> if(rep_char1[i] != rep_char2[i])
>> {
>> cout<<"Both are not anagram of each other.";
>> return 0;
>> }
>>
>> cout<<"Both are anagram of each other.";
>> }
>> return 0;
>> }
>>
>>
>>
>> --
>> Siddharth Kumar
>> BE 4th year, Computer Engineering
>> (Delhi College of Engineering)
>> +919711559760
>>
>>  --
>> You received this message because you are subscribed to the Google Groups
>> "Algorithm Geeks" group.
>> To post to this group, send email to algogeeks@googlegroups.com.
>> To unsubscribe from this group, send email to
>> algogeeks+unsubscr...@googlegroups.com.
>> For more options, visit this group at
>> http://groups.google.com/group/algogeeks?hl=en.
>>
>
>
>
> --
> Saurabh Singh
> B.Tech (Computer Science)
> MNNIT ALLAHABAD
>
>
>
>  --
> You received this message because you are subscribed to the Google Groups
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Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread saurabh singh
use a bitfield to optimize space

On Fri, Jul 29, 2011 at 7:14 PM, Siddharth kumar <
siddhartha.baran...@gmail.com> wrote:

> #include
> #include
>
> using namespace std;
>
> int main()
> {
> char str1[] = "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
> char str2[] = "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
> int len1 = strlen(str1), len2 = strlen(str2);
>
> if(len1 != len2)
> {
> cout<<"Both are not anagram of each other.";
> return 0;
> }
> else
> {
> int rep_char1[26] = {0}, rep_char2[26] = {0}, i;
>
> for(i=0; i {
> rep_char1[str1[i]-'a']++;
> rep_char2[str2[i]-'a']++;
> }
>
>  for(i=0; i<26; i++)
> if(rep_char1[i] != rep_char2[i])
> {
> cout<<"Both are not anagram of each other.";
> return 0;
> }
>
> cout<<"Both are anagram of each other.";
> }
> return 0;
> }
>
>
>
> --
> Siddharth Kumar
> BE 4th year, Computer Engineering
> (Delhi College of Engineering)
> +919711559760
>
>  --
> You received this message because you are subscribed to the Google Groups
> "Algorithm Geeks" group.
> To post to this group, send email to algogeeks@googlegroups.com.
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>



-- 
Saurabh Singh
B.Tech (Computer Science)
MNNIT ALLAHABAD

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Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread Siddharth kumar
#include
#include

using namespace std;

int main()
{
char str1[] = "sdfgkirertyujvcheddirtyutrdfgrtyuigfkrertyuijhgfdshh";
char str2[] = "redirtyhgfdshhrtyrsujvcheierdutrdfgrtyuigfkdfgktyuij";
int len1 = strlen(str1), len2 = strlen(str2);

if(len1 != len2)
{
cout<<"Both are not anagram of each other.";
return 0;
}
else
{
int rep_char1[26] = {0}, rep_char2[26] = {0}, i;

for(i=0; ihttp://groups.google.com/group/algogeeks?hl=en.



Re: [algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread Siddharth kumar
for long strings, the values will be larger.

a simple approach could be to store occurrence of each char of both the
strings in an integer array of size 26 and if both the arrays are same then
the two strings are anagrams.

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[algogeeks] doubt in checking if 2 strings are anagrams

2011-07-29 Thread snehi jain
i was looking for techniques for checking if two words are anagrams ... and
 i did get a lot of techniques with sorting and then comparing ...
but will this work...

add the ASCII values of the characters and  add the cube of ASCII value of
the same characters ..
if for 2 strings both the corresponding values are same then the strings are
anagrams ...



is there any problem with this approach??


thanks
Snehi

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