Cod sursa(job #16971)

Utilizator diaDiana Adrisor dia Data 14 februarie 2007 17:01:34
Problema Diviz Scor 20
Compilator c Status done
Runda Arhiva de probleme Marime 2.36 kb
#include <stdio.h>
#include <string.h>
#define NMAX 202
#define KMAX 102
#define CMAX 10
#define MOD 30103
#define INF 666000666

int D[2][NMAX][KMAX], N, A, B, K, First[CMAX][NMAX], V[NMAX], Rez, Cif[NMAX], Sf[CMAX][NMAX];
int rest[4510];

int mod(int s)
{
        return (s>=MOD ? (s-MOD):s);
}

int main()
{
        int i, j, r, cif, s = 0, d = 1, t;
        char c[NMAX];
        
        freopen("diviz.in", "r", stdin);
        scanf("%d %d %d ", &K, &A, &B);

        gets(c);
        N = strlen(c);

        for (i = 0; i < N; i++)
        {
                V[i+1] = c[i]-48;
                Cif[V[i+1]] = 1;
                First[V[i+1]][i+1] = i+1;
                Sf[V[i+1]][i+1] = i+1;
        }

        for (i = 0; i < 4500; i++) rest[i] = i%K;

        for (cif = 0; cif < CMAX; cif++)
            for (i = 1; i <= N; i++)
                for (j = i+1; j <= N; j++)
                    if (V[i] == V[j]) { First[ V[i] ][j] = j; break; }

        for (cif = 0; cif < CMAX; cif++)
            First[cif][N+1] = INF;

        for (cif = 0; cif < CMAX; cif++)
        {
            for (i = N; i >= 1; i--)
                First[cif][i] = (First[cif][i] == 0 ? First[cif][i+1]:First[cif][i]);
            for (i = 1; i <= N; i++)
                Sf[cif][i] = Sf[cif][i-1]+(cif==V[i]);
        }

        for (cif = 1; cif < CMAX; cif++)
            if (Cif[cif])  D[0][ First[cif][1] ][ cif%K ] = 1;

        if (A == 1)
           for (j = 1; j <= N; j++) Rez += D[0][j][0];

        for (i = 2; i <= B; i++)
        {
            for (j = i-1; j < N; j++)
                for (r = 0; r < K; r++)
                    for (cif = 0; cif < CMAX; cif++)
                       if (First[cif][j+1] < INF && (Sf[cif][ First[cif][j+1]-1 ]-Sf[cif][j+1] <= 0))
                       {
                           t = (r*10+cif);
                           D[d][ First[cif][j+1] ][ rest[t] ] = mod(D[d][ First[cif][j+1] ][ rest[t] ]+D[s][j][r]);
                       }
            for (j = 1; j <= N; j++)
                Rez = mod(Rez+(i>=A)*D[d][j][0]);
            s = (s+1)&1; d = (d+1)&1;
            for (j = 0; j < NMAX; j++)
                for (r = 0; r < CMAX; r++) D[d][j][r] = 0;
        }

        freopen("diviz.out", "w", stdout);
        printf("%d\n", Rez);
                    
        return 0;
        
}