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| Very stupid statement | andreyDagger | 2024. Adventure Time | 14 Oct 2021 15:53 | 1 |
Change the statement, don't be ashamed |
| WA 4 | andreyDagger | 1377. Lara Croft | 14 Oct 2021 08:44 | 1 |
WA 4 andreyDagger 14 Oct 2021 08:44 Try this: 3 3 2 2 3 3 answer: 4 |
| anybody get some tests! | L.E.O. | 1882. Old Nokia | 14 Oct 2021 05:33 | 6 |
What is answer, if input is: 42 c cc ccc cccc ccccc ccccccca cccccccb cccccccc cccccccd ccccccce cccccccf cccccccg ena enb enc enf eng enh enl enm ens enss enssa enssb enssc enssd ensse enssf ensst ensstu ensstz z zz zza zzb zzc zzd zze zzf zzg zzh zzj Anybody help, please! 0 1 2 3 4 5 6 7 7 6 5 4 2 3 4 5 5 6 7 5 7 8 9 10 9 8 7 6 5 4 3 4 5 6 7 7 6 5 4 3 2 1 :( My answer is the same, but i got wa2. But thanks you anyway. Edited by author 21.11.2011 13:39 It's wrong answer. For example, for i=9 answer <=6 (not 7): e (+2), up (+4) Edited by author 07.08.2016 15:21 The answer is correct.My AC program get the same answer with it. |
| No subject | andreyDagger | 1718. Rejudge | 12 Oct 2021 10:40 | 1 |
I wish they made clarification |
| weak test | Celebrate | 1652. Banking Crisis | 11 Oct 2021 11:48 | 1 |
My friends solve it with dicnic. But its time complexity can be up to O(nm^sqrt(n+m)),and its space compexity can be up to O(nm). I think admin should add the test that all the bank belong to one country. |
| Why WA#4? | LX&R Bacherikov [KNU] | 1565. The Duel for Three | 10 Oct 2021 22:27 | 4 |
Why WA#4? LX&R Bacherikov [KNU] 27 Nov 2007 20:49 I see many people had this WA. Can someone give me a hint about it? I think it will be useful for others. I had WA 4 because of wrong supposition: let probabilities are p0=1.0, p1, p2 p1 > p2 "p1" always should shoot into "p0" "p2" always should shoot into the air Thank you! There are really much more cases. Another way is to type (i-1) instead of (1-i) somewhere in your code without noticing and then spend 90 minutes going over the code and try to figure out how your logic could possibly be wrong. |
| SUS???? | Incognito | 1290. Sabotage | 9 Oct 2021 06:11 | 1 |
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| С++ solution | VlasovNikita | 2001. Mathematicians and Berries | 8 Oct 2021 21:42 | 2 |
#include <iostream> using namespace std; main() { int a, b ; int a1 , b1; int a2 , b2; cin >> a >> b; cin >> a1 >> b1; cin >> a2 >> b2;
int c = b - b1; int c1 = a - a2; cout << c1 << " " << c; return 0; } ____________________________________ Держите) Не правильно #include <iostream> using namespace std; main() { int a, b ; int a1 , b1; int a2 , b2; cin >> a >> b; cin >> a1 >> b1; cin >> a2 >> b2;
int c = b - b1; int c1 = a - a2; cout << c1 << " " << c; return 0; } ____________________________________ Держите) |
| Что не так пишет неверный ответ все пересчитал ответы правильные дает | Евгений | 2111. Plato | 8 Oct 2021 15:49 | 1 |
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner a = new Scanner(System.in); int x = a.nextInt(); //String x1 = a.nextLine(); int y = 0; int z = 0; int [] array1 = new int[x]; for(int i=0;i<x;i++) { array1[i] = a.nextInt(); y+=array1[i];
if(i==1 && array1[i] < array1[i-1] ) { int tmp = array1[i]; array1[i] = array1[i-1]; array1[i-1] = tmp; } }
for(int i=array1.length-1;i>-1;i--) { z+=array1[i]*y; y-=array1[i]; z+=array1[i]*y; }
System.out.println(z); } } |
| С++ решение(нужно ускорить) | Romanchillihotpepper | 1068. Sum | 8 Oct 2021 14:32 | 1 |
#include <iostream> int main() { short n;int a=0; std::cin>>n; if(n<=0){ for(int i=n;i<=1;i++){ a+=i; } std::cout<<a; } else{ for(int i=1;i<=n;i++){ a+=i; } std::cout<<a; } return 0; } |
| hint | Kamrad Razumnyy | 2050. 3D-modeling | 8 Oct 2021 12:15 | 2 |
hint Kamrad Razumnyy 25 Jun 2015 09:26 The answer is the symmetry axis In test 3 the angle between the lines is very small Edited by author 26.06.2015 02:34 thx! <code> #include <stdio.h> int main(){ printf("1 1 0\n0 0 0\n180\n"); } </code> gives WA3 ^) |
| Помогите понять мою ошибку | Romanchillihotpepper | 1820. Ural Steaks | 8 Oct 2021 11:40 | 1 |
Почему так не проходит(ошибка на 13): #include <iostream> int main() { int n,k; std::cin>>n>>k; if(n<=k) std::cout<<2; else std::cout<<n*2/k+n*2%k; return 0; } А так проходит: #include <iostream> int main() { int n,k; std::cin>>n>>k; if(n<=k) std::cout<<2; else{ if(n*2 % k == 0) std::cout<<n*2/k; else std::cout<<n*2/k+1; } return 0; } Ну или тернар(тоже не проходит - ошибка на 13): #include <iostream> int main() { int n,k; std::cin>>n>>k; (n<=k)?std::cout<<2:std::cout<<n*2/k+n*2 % k; return 0; } Может я чего не понимаю, может всё-таки где-то приоритет потерял, но ведь идентично же. Edited by author 08.10.2021 11:51 Теперь понял, %k может вернуть и больше, чем 1 Edited by author 08.10.2021 12:00 Edited by author 08.10.2021 12:02 C++ ответ: #include <iostream> int main() { int n,k; std::cin>>n>>k; (n<=k)?std::cout<<2:(n*2%k==0)?std::cout<<n*2/k:std::cout<<n*2/k+1; return 0; } Edited by author 08.10.2021 12:03 |
| good idea to avoid mistake | Celebrate | 1575. Yekaterinburg Subway 2 | 8 Oct 2021 04:45 | 1 |
I have some mistake in the staion name which I can't find it in my code. Then I search all the string my write and calculate LCS. The string has maximal LCS is what we want to find. Like that: int __(string ss){ if(f.find(ss)==f.end()){ int ans=0,pos=0; rep(ki,1,cnt){ mst(dp,0); for(int i=1;i<=ss.length();i++){ for(int j=1;j<=s[ki].length();j++){ if(ss[i-1]==s[ki][j-1])dp[i][j]=dp[i-1][j-1]+1; else dp[i][j]=max(dp[i-1][j],dp[i][j-1]); } } if(dp[ss.length()][s[ki].length()]>ans)ans=dp[ss.length()][s[ki].length()],pos=ki; } return pos; } return f[ss]; } Then I got AC from wa2 Edited by author 08.10.2021 04:46 |
| why runtime error | Kolodkin Konstantin | 1876. Centipede's Morning | 7 Oct 2021 18:55 | 1 |
using System; namespace _1876_Csharp { class Program { static void Main(string[] args) { int a= Convert.ToInt32(Console.ReadLine()), b = Convert.ToInt32(Console.ReadLine()); int c = Math.Max(2 * a + 39, 2 * b + 40); Console.WriteLine(c); } } } |
| WA2 | andreyDagger | 1922. Superhero Team | 7 Oct 2021 18:48 | 1 |
WA2 andreyDagger 7 Oct 2021 18:48 There are two variants: 1) You forgot to sort the array 2) You forgot that after sorting the array, indexes are messing up |
| If you get WA10 | Ulugbek#& | 1027. D++ Again | 5 Oct 2021 14:34 | 2 |
I've got several times WA 10 and in the forum I couldn't find any test for this test, and finally I found where was the mistake. Try this: (* WTF?!! * ) answer is yes No! It's wrong. The asnwer is NO because the comment isn't closed. The comment should end by '*)', not '*\n)' |
| WA13 | cust2112 | 1732. Ministry of Truth | 3 Oct 2021 02:54 | 1 |
WA13 cust2112 3 Oct 2021 02:54 Edited by author 04.10.2021 02:11 |
| Help, to understanding | coder | 1886. Trip 2 | 2 Oct 2021 20:50 | 1 |
Let a bit change first test 4 5 1 4 10 10 90 20 1 2 5 5 50 10 --> 5 changed to 10 2 4 15 10 50 5 2 3 1 14 10 1 3 4 15 1 50 1 Is 2-->4 flying guaranteed arrive to Las Vegas? Answer -> ? |
| WA18 | tepamid | 1275. Knights of the Round Table | 1 Oct 2021 07:13 | 2 |
WA18 tepamid 18 Mar 2021 19:02 Try this if you have WA18: 10 7 3 0 5 9 2 3 7 3 1 4 4 Re: WA18 Nedyalko Borisov 1 Oct 2021 07:13 The answer is: 12 1 8 + 1 8 + 4 1 + 9 6 + 2 9 - 2 9 - 3 10 - 6 3 - 6 3 - 6 3 - 6 3 - 6 3 - |
| Interesting notice about ML | Aleksey[TheCrawfish]Bykov'` | 1220. Stacks | 29 Sep 2021 18:54 | 2 |
Earlier this problem has got a strict result about a lot of realizations - about two years ago I have a submit which got a MLE 10 (7603331), but now this code on same compiler (VS C++ 2017) have only 252 KB! But on G++ - MLE 1. Similarly - my older AC code now have less memory. How it works? Why it has got such difference in memory after two years and between compilers? Changing virtual machine get this strange result? I think there is a bug with measuring memory used |