Search found 13 matches

by Moshiur Rahman
Thu Mar 26, 2009 4:44 pm
Forum: Volume 106 (10600-10699)
Topic: 10679 - I Love Strings!!
Replies: 101
Views: 49100

Re: 10679 - I love Strings!!!

You can't get AC with KMP in this problem! Actually you don't need KMP :) Fortunately ( or unfortunately :-? ) the judge data is wrong and funny ( sorry to say that ) You can get AC just by checking whether t is a prefix of st or not! Just check the first strlen(t) characters of st . By the way, you...
by Moshiur Rahman
Sat Mar 14, 2009 10:26 am
Forum: Volume 4 (400-499)
Topic: 482 - Permutation Arrays
Replies: 159
Views: 32376

Re: 482 Permutation Arrays

I think you have to change your method of "input taking" for second input line. you can use the value of i to take the second line. Note that, you will be given exactly i floating point numbers. So, you don't need to worry about the white spaces. You get the value of i from the while loop that takes...
by Moshiur Rahman
Thu Mar 12, 2009 10:38 am
Forum: Volume 1 (100-199)
Topic: 190 - Circle Through Three Points
Replies: 126
Views: 21838

Re: 190-Circle Through Three Points

well... I got AC by printing blank line after each testcases, but got WA by printing blank line between testcases.
by Moshiur Rahman
Wed Mar 11, 2009 6:04 pm
Forum: Volume 1 (100-199)
Topic: 190 - Circle Through Three Points
Replies: 126
Views: 21838

Re: 190-Circle Through Three Points

"Print a single blank line after each equation pair."
Try this:

Code: Select all

0.0 0.0 1.0 0.0 0.0 2.0
Output:

Code: Select all

(x - 0.500)^2 + (y - 1.000)^2 = 1.118^2
x^2 + y^2 - 1.000x - 2.000y - 0.000 = 0

by Moshiur Rahman
Mon Feb 23, 2009 8:08 pm
Forum: Volume 115 (11500-11599)
Topic: 11572 - Unique Snowflakes
Replies: 36
Views: 12869

Re: 11572 - Unique Snowflakes

I am having an impression that, you did the same mistake as I did. At first, I misunderstood the problem statement. The problem asks to find the highest number of unique snowflakes that comes one after another , not just the number of total unique snowflakes. It can be restated as follows: Given a s...
by Moshiur Rahman
Sat Feb 21, 2009 12:32 pm
Forum: Other words
Topic: SPOJ BRCKTS Using segment tree (help!)
Replies: 0
Views: 3671

SPOJ BRCKTS Using segment tree (help!)

I was working on https://www.spoj.pl/problems/BRCKTS/ My half solution : Replace all the '(' with 1 and ')' with -1 and construct a new array A[ ]. ( A = 1 or -1 ) calculate C[ ]. ( C is the sum of the values A[0]...A ) Now, for determining whether the word is correct or not you need to check if A[ ...
by Moshiur Rahman
Sat Feb 14, 2009 7:38 pm
Forum: Volume 105 (10500-10599)
Topic: 10589 - Area
Replies: 48
Views: 18432

Re: 10589 - Area

You don't need to use this complex and error prone long long method any more...
The very straightforward approach using doubles is enough to get AC. I think the judge data is ok now :)
by Moshiur Rahman
Sat Feb 14, 2009 6:40 pm
Forum: Volume 4 (400-499)
Topic: 498 - Polly the Polynomial
Replies: 73
Views: 13946

Re: 498 TLE

I made the following change in your second while loop and got AC:

Code: Select all

while(1)
{
     int ret = scanf("%d%c",&c[i++],&a);
     if(ret != 2) return 0;
     if(a==10)break;
}
good luck!
by Moshiur Rahman
Sat Feb 14, 2009 5:53 pm
Forum: Volume 101 (10100-10199)
Topic: 10183 - How Many Fibs?
Replies: 66
Views: 24070

Re: 10183 - How many Fibs?

for the input:

Code: Select all

0 2
0 0
your program returns 4. when the correct answer should be 2.
by Moshiur Rahman
Tue Sep 09, 2008 7:39 am
Forum: Volume 3 (300-399)
Topic: 371 - Ackermann Functions
Replies: 196
Views: 29541

Re: 371 - Ackermann Functions #TLE. Please Help!

try to do some memoization.

Don't calculate for the same input again, just save the cycle length in an array...
by Moshiur Rahman
Tue Sep 09, 2008 7:32 am
Forum: Volume 100 (10000-10099)
Topic: 10006 - Carmichael Numbers
Replies: 66
Views: 21066

Re: 10006 - Carmichael Numbers

reply for adhoc17...... Your program returns 62 Carmichael Numbers in the input range, while there are only 15 for example 341,645,....60787 are not a Carmichael Numbers, but your program says they are also Carmichael numbers your isprime() function does not work for numbers which are a power of two...
by Moshiur Rahman
Tue Sep 09, 2008 6:41 am
Forum: Volume 4 (400-499)
Topic: 488 - Triangle Wave
Replies: 270
Views: 32389

Re: 488wa!!!!!!!please help me!!!!!!!!where is the problem

You must print blank lines between testcases also....

read the problem statement again carefully.....
by Moshiur Rahman
Mon Sep 08, 2008 7:17 pm
Forum: Off topic (General chit-chat)
Topic: What kinds of problems do you solve most ?
Replies: 25
Views: 76950

Re: What kinds of problems do you solve most ?

I love solving any kind of problems. But specially I like,

1. number theoritic problems
2. bfs, dfs related graph problems
3. any problem that has a recursive solution.

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