Cod sursa(job #2276048)

Utilizator Vlad_lsc2008Lungu Vlad Vlad_lsc2008 Data 3 noiembrie 2018 23:54:57
Problema Potrivirea sirurilor Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.24 kb
#include<iostream>
#include<fstream>
#include<cstring>
#include<queue>
using namespace std;

char a[4000010],b[2000010];
int z[4000010];
queue<int> sol;

int main()
{
    int n=0;
    int i,k,len1,len;
    ifstream t1("strmatch.in");
    ofstream t2("strmatch.out");
    t1.get(a,2000000); t1.get();
    len1=strlen(a);
    t1.get(b,2000000);
    strcat(a,"@");
    strcat(a,b);
    len=strlen(a);
    cout<<a<<' '<<b<<' '<<len1<<' '<<len<<'\n';

    int L=0,R=0;
    for(i=1;i<len;i++)
    {
        if( i>R)
        {
            L=R=i;
            while( R<len && a[R-L]==a[R])
                R++;
            z[i]=R-L;
            R--;
        }
        else
        {
            k=i-L;
            if( z[k]< R-i+1 )
                z[i]=z[k];
            else
            {
                L=i;
                while( R<len && a[R-L]==a[R])
                    R++;
                z[i]=R-L;
                R--;
            }
        }
        if(z[i]==len1)
        {
            n++;
            sol.push(i-len1-1);
        }
    }
    for(i=1;i<len;i++)
        cout<<z[i]<<' ';
    t2<<n<<'\n';
    for(i=1;i<=min(1000,n);i++,sol.pop())
        t2<<sol.front()<<' ';
    t2<<'\n';
    return 0;
}