Cod sursa(job #1787738)

Utilizator andru47Stefanescu Andru andru47 Data 24 octombrie 2016 22:36:43
Problema Distincte Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 3.79 kb
#include <bits/stdc++.h>
#define per pair<pair<int,int> , int >
#define f first
#define s second
#define MOD 666013
#define ub(x) (x&(-x))
using namespace std;
class InParser
{
private:
    FILE *fin;
    char *buff;
    int sp;

    char read_ch()
    {
        ++sp;
        if (sp == 4096)
        {
            sp = 0;
            fread(buff, 1, 4096, fin);
        }
        return buff[sp];
    }

public:
    InParser(const char* nume)
    {
        fin = fopen(nume, "r");
        buff = new char[4096]();
        sp = 4095;
    }

    InParser& operator >> (int &n)
    {
        char c;
        while (!isdigit(c = read_ch()) && c != '-');
        int sgn = 1;
        if (c == '-')
        {
            n = 0;
            sgn = -1;
        }
        else
        {
            n = c - '0';
        }
        while (isdigit(c = read_ch()))
        {
            n = 10 * n + c - '0';
        }
        n *= sgn;
        return *this;
    }

    InParser& operator >> (long long &n)
    {
        char c;
        n = 0;
        while (!isdigit(c = read_ch()) && c != '-');
        long long sgn = 1;
        if (c == '-')
        {
            n = 0;
            sgn = -1;
        }
        else
        {
            n = c - '0';
        }
        while (isdigit(c = read_ch()))
        {
            n = 10 * n + c - '0';
        }
        n *= sgn;
        return *this;
    }
} fin("distincte.in");
class OutParser
{
private:
    FILE *fout;
    char *buff;
    int sp;

    void write_ch(char ch)
    {
        if (sp == 50000)
        {
            fwrite(buff, 1, 50000, fout);
            sp = 0;
            buff[sp++] = ch;
        }
        else
        {
            buff[sp++] = ch;
        }
    }


public:
    OutParser(const char* name)
    {
        fout = fopen(name, "w");
        buff = new char[50000]();
        sp = 0;
    }
    ~OutParser()
    {
        fwrite(buff, 1, sp, fout);
        fclose(fout);
    }

    OutParser& operator << (int vu32)
    {
        if (vu32 <= 9)
        {
            write_ch(vu32 + '0');
        }
        else
        {
            (*this) << (vu32 / 10);
            write_ch(vu32 % 10 + '0');
        }
        return *this;
    }

    OutParser& operator << (long long vu64)
    {
        if (vu64 <= 9)
        {
            write_ch(vu64 + '0');
        }
        else
        {
            (*this) << (vu64 / 10);
            write_ch(vu64 % 10 + '0');
        }
        return *this;
    }

    OutParser& operator << (char ch)
    {
        write_ch(ch);
        return *this;
    }
    OutParser& operator << (const char *ch)
    {
        while (*ch)
        {
            write_ch(*ch);
            ++ch;
        }
        return *this;
    }
} fout("distincte.out");
int n,m,k,aib[100005],v[100005],ok[100005],sol[100005];
per a[100005];
inline void update(int poz,int val)
{
    for (int i = poz; i<=n; i+=ub(i))
        aib[i]=(aib[i]+val+MOD)%MOD;
    return ;

}
inline int query(int poz)
{
    int sum = 0;
    for (int i = poz; i; i-=ub(i))
        sum=(sum+aib[i]+MOD)%MOD;
    return sum;

}
int main()
{
    fin >> n >> k >> m;
    for (int i = 1; i<=n; ++i)
        fin >> v[i];
    for (int i = 1; i<=m; ++i)
    {
        fin >> a[i].f.s >> a[i].f.f;
        a[i].s = i;
    }
    sort(a+1,a+m+1);
    int j = 1;
    for (int i = 1; i<=m; ++i)
    {
        for (; j<=a[i].f.f ; ++j)
        {
            if (ok[v[j]]!=0)
                update(ok[v[j]],-v[j]);
            update(j,v[j]);
            ok[v[j]] = j;
        }
        sol[a[i].s] =  (query(a[i].f.f) - query(a[i].f.s-1)+MOD)%MOD;
    }
    for (int i = 1; i<=m; ++i)
        fout << sol[i] << '\n';
    return 0;
}