Cod sursa(job #2209221)

Utilizator Andrei_CotorAndrei Cotor Andrei_Cotor Data 2 iunie 2018 13:24:39
Problema Cowfood Scor 100
Compilator cpp Status done
Runda Lista lui wefgef Marime 1.36 kb
#include<fstream>
#define MOD 3210121
using namespace std;
ifstream fi("cowfood.in");
ofstream fo("cowfood.out");
int k,s,n,i,j,Dp[2][10005],rez,A[25][35],Mx[25][35],S[25];

void g(int ind)
{
    int i;
    if(ind>0)
    {
        for(i=1; i<=k; i++)
            Mx[ind][i]=max(Mx[ind-1][i],A[S[ind]][i]);
        int sum=0;
        for(i=1; i<=k; i++)
        {
            sum=sum+Mx[ind][i];
            if(sum>s)
            {
                sum=100001;
                break;
            }
        }
        if(sum<=s)
        {
            if(ind%2==0)
                rez=(rez+Dp[k%2][s-sum])%MOD;
            else
                rez=(rez-Dp[k%2][s-sum]+MOD)%MOD;
        }
    }
    if(ind<n)
        for(i=S[ind]+1; i<=n; i++)
        {
            S[ind+1]=i;
            g(ind+1);
        }
}

int main()
{
    fi>>k>>s>>n;
    for(i=1; i<=s; i++)
        Dp[1][i]=1;
    Dp[1][0]=1;
    for(i=2; i<=k; i++)
    {
        Dp[i%2][0]=1;
        for(j=1; j<=s; j++)
            Dp[i%2][j]=(Dp[1-(i%2)][j]+Dp[i%2][j-1])%MOD;
    }
    for(i=1; i<=n; i++)
        for(j=1; j<=k; j++)
            fi>>A[i][j];
    for(i=1; i<=s; i++)
        Dp[k%2][i]=(Dp[k%2][i-1]+Dp[k%2][i])%MOD;
    rez=Dp[k%2][s];
    rez=(rez-((k*s+1)%MOD)+MOD)%MOD;
    g(0);
    fo<<rez<<"\n";
    fi.close();
    fo.close();
    return 0;
}