OJ Board

How to use DP? I got TLE in this problem.Please give me any hints,THX!!

hmm...
Can you explain it in details,I don't quite understand how to use BFS.

Sorry Krzysztof Duleba,I post the wrong problem id and I need help on p10993 Ignoring Digits.

Can anyone tell me how to solve this problem? I haven't any idea

I have made a silly mistake and get AC now!!
Andway thanks a lot !!

Sorry,But could you tell me how to modify the sieve of Erastosthenes?
I try to modify it in order to get the factorization of n but get MLE.
So could you show me the picture? Thx!!

The array of hode h[251] is not big enough;
Change it to h[2500] will get AC though it waste some memory!

Hi,helloneo!
You said there are negative inputs? But the problem says "The Input consists of 5-Tupels of positive Integers, each between 1 and 50."
If there are negative inputs,where should I modifiy my code?
I can not make it out,plz help me!!!

Oh.My God!!
My friends told me that this problem might have been changed.His code used to get AC,but now get WA.Perhaps the test data have been changed and there maybe some mistakes in it.

Hi! I need help for p10344. I get WA,and I don't why.I think there should be 5!*3^4=9720 conditions.So Backtracking it. Here is the code: #include <iostream.h> #include <string.h> int oper[4]; int value[5]; bool flag; int cal() { int result; switch(oper[0]){ case 1:result=value[0]+value[1];break; ca...

I see!Thanks misof

I want to use qsort function.But it says compile error on my VC++6.0 Here is my sample code: #include <stdio.h> #include <stdlib.h> #include <string.h> int sort_function( const void *a, const void *b); char list[5][4] = { "cat", "car", "cab", "cap", "can&...

No one help me??

This problem is not a hard one ,I think.But it confuse me a lot.I use a loop for(y=-b;y<=b;y++) to find the suitable x and y.But TLE.So I wonder is there a formula that can find the x,y quickly.Please help me !!!Thx

Yeah,Got it! Thanks misof!AC now!