Cod sursa(job #1840609)

Utilizator cristina_borzaCristina Borza cristina_borza Data 4 ianuarie 2017 17:23:00
Problema Curcubeu Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 3.15 kb
#include <fstream>

#define DIM 1000005

using namespace std;

int a[DIM] , b[DIM] , c[DIM] , ans[DIM] , nxt[DIM];
int n , nr;

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;
    }
} f ("curcubeu.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 << (char ch) {
        write_ch(ch);
        return *this;
    }
    OutParser& operator << (const char *ch) {
        while (*ch) {
            write_ch(*ch);
            ++ch;
        }
        return *this;
    }
} g ("curcubeu.out");

int find (int pos) {
    if (nxt[pos] == 0)
        return pos;

    int p = pos;
    while (nxt[pos]) {
        pos = nxt[pos];
    }

    while (p != pos) {
        nxt[p] = pos;
        p = nxt[p];
    }

    return pos;
}

void solve (int left , int right , int val) {
    while (left <= right) {
        if (ans[left] == 0) {
            ans[left] = val;
            if (left != right)
                nxt[left] = right;

            ++nr;
            if (nr == n - 1) {
                return;
            }

            ++left;
        }

        else {
            left = find (left) + 1;
        }
    }
}

int main() {
    f >> n >> a[1] >> b[1] >> c[1];

    for (int i = 2; i < n; ++i) {
        long long aux = ((long long)a[i - 1] * (long long)i) % n;
        a[i] = aux;

        aux = ((long long)b[i - 1] * (long long)i) % n;
        b[i] = aux;

        aux = ((long long)c[i - 1] * (long long)i) % n;
        c[i] = aux;
    }

    for (int i = n - 1; i >= 1; --i) {
        if (a[i] > b[i]) {
            swap (a[i] , b[i]);
        }

        solve (a[i] , b[i] , c[i]);
    }

    for (int i = 1; i < n; ++i) {
        g << ans[i] << '\n';
    }
    return 0;
}