ENG  RUSTimus Online Judge
Online Judge
Problems
Authors
Online contests
About Online Judge
Frequently asked questions
Site news
Webboard
Links
Problem set
Submit solution
Judge status
Guide
Register
Update your info
Authors ranklist
Current contest
Scheduled contests
Past contests
Rules
back to board

Discussion of Problem 1818. Fair Fishermen

What is the test №3
Posted by kutenin 30 Jan 2011 14:11
i have problems with test №3
Please help
Re: What is the test №3
Posted by TheDreamCatcher 30 Jan 2011 16:15
try test:
2000
then 1999 of "0" and 1 of "1"
Re: What is the test №3
Posted by Alexander Georgiev 30 Jan 2011 19:33
Or just test:
3
0 0 0
(the statement says there is at least 1 caught fish, but most solutions print 0)
Re: What is the test №3
Posted by miro.v.k 30 Jan 2011 21:06
What is wrong with my code ?
Am i using a wrong algo ?

/*1818.cpp*/
#include<iostream>
#include<string>
#include<string.h>
#define MAXN 2000
#define MAXNCHAR 4
using namespace std;

string sum(const string &a,const string &b)
{
    string res="";
    unsigned carry=0,
        nA=a.size(),
        nB=b.size();
    while(nA>0 && nB>0)
    {
        res.insert(res.begin(),(a[nA-1]-'0'+b[nB-1]-'0'+carry)%10+'0');
        carry=(a[nA-1]-'0'+b[nB-1]-'0'+carry)/10;
        nA--;
        nB--;
    }
    while(nA>0)
    {
        res.insert(res.begin(),(a[nA-1]-'0'+carry)%10+'0');
        carry=(a[nA-1]-'0'+carry)/10;
        nA--;
    }
    while(nB>0)
    {
        res.insert(res.begin(),(b[nB-1]-'0'+carry)%10+'0');
        carry=(b[nB-1]-'0'+carry)/10;
        nB--;
    }
    if(carry>0)
        res.insert(res.begin(),carry+'0');
    return res;
}

string mult1(const string &a,char b)
{
    string res="";
    unsigned i,nA=a.size(),
        carry=0;
    if(b=='0')
    {
        res="0";
        return res;
    }
    for(i=0;i<nA;i++)
    {
        res.insert(res.begin(),((a[nA-1-i]-'0')*(b-'0')+carry)%10+'0');
        carry=((a[nA-1-i]-'0')*(b-'0')+carry)/10;
    }
    while(carry>0)
    {
        res.insert(res.begin(),carry%10+'0');
        carry/=10;
    }
    return res;
}

string mult(const string &a,const string &b)
{
    unsigned i,j,nB=b.size();
    string tmp,res="0";
    for(i=0;i<nB;i++)
    {
        tmp=mult1(a,b[nB-1-i]);
        for(j=0;j<i;j++)
            tmp.insert(tmp.end(),'0');
        res=sum(res,tmp);
    }
    return res;
}

string x,arr[MAXN];
char l=1;
unsigned n;

void read()
{
    unsigned i;
    char nChar[MAXNCHAR+1];
    cin>>n;
    for(i=0;i<n;i++)
    {
        cin>>arr[i];
        l=l && arr[i]=="0";
    }
    sprintf(nChar,"%u",n);
    x.assign(nChar);
}

string solve()
{
    string res;
    unsigned i;
    if(l==0)
    {
        res=arr[n-1];
        for(i=1;i<n;i++)
        {
            res=mult(res,x);
            res=sum(res,arr[n-1-i]);
        }
        return res;
    }
    res=x;
    for(i=1;i<n;i++)
        res=mult(res,x);
    return res;
}

void write()
{
    cout<<solve()<<endl;
}

int main()
{
    read();
    write();
    return 0;
}

Edited by author 08.02.2011 01:51

Edited by author 08.02.2011 01:52

Edited by author 10.02.2011 16:32
Re: What is the test №3
Posted by Aleksandar Ivanovic 1 May 2011 21:00
Is output for that case :

2000

1999 of '0'
and one '1'

http://pastebin.com/WfrYZTAg

?

Edited by author 01.05.2011 21:02

Edited by author 01.05.2011 21:02
Re: What is the test №3
Posted by catalin_oancea 4 May 2011 02:57
the output for
3
0 0 0
is 9 or 0 ? I've got WA on #3

and for
3
0 0 1
is 9 too?
Re: What is the test №3
Posted by Igor Dex 4 May 2011 17:50
I haven't solved it yet. It's WA3 too. But I think the correct answer for
3
0 0 0
is 27.

and for
3
0 0 1
is 9.

Edited by author 05.05.2011 04:30

Edited by author 05.05.2011 04:30
Re: What is the test №3
Can u give the answer of this test?
Re: What is the test №3
What the output for
2000

1999 of '0'
and one '1'