Cod sursa(job #2842955)

Utilizator andu9andu nita andu9 Data 1 februarie 2022 19:11:34
Problema Curcubeu Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 3.15 kb
#include <fstream>

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;
	}
};

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;
    }
};

InParser f("curcubeu.in");
OutParser g("curcubeu.out");

const int INF = 1e6 + 10;
int a[INF], b[INF], c[INF], colour[INF], urm[INF];



int root (int x)
{
    if (urm[x] != x)
        urm[x] = root (urm[x]);
    return urm[x];
}

int main ()
{
    int n, i, j, stanga, dreapta, total;
    f >> n >> a[1] >> b[1] >> c[1];
    for (i = 2; i <= n - 1; i += 1)
    {
        a[i] = (1LL * a[i - 1] * i) % n;
        b[i] = (1LL * b[i - 1] * i) % n;
        c[i] = (1LL * c[i - 1] * i) % n;
    }
    for (i = 1; i <= n; i += 1)
        urm[i] = i;
    total = 0;
    for (i = n - 1; i >= 1 and total < n - 1; i -= 1)
    {
        stanga = min (a[i], b[i]);
        dreapta = max (a[i], b[i]);
        j = root (stanga);
        while (j <= dreapta)
        {
            colour[j] = c[i], total += 1;
            urm[j] = j + 1;
            j = root (j);
        }
    }
    for (i = 1; i <= n - 1; i += 1)
        g << colour[i] << '\n';
    return 0;
}