Cod sursa(job #2290807)

Utilizator tziplea_stefanTiplea Stefan tziplea_stefan Data 27 noiembrie 2018 00:12:13
Problema Drumuri minime Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.54 kb
#include <fstream>
#include <vector>
#include <queue>
#include <cmath>
#define F first
#define S second
#define VAL 1505
#define MOD 104659
#define INF 1000000000
#define EPS 0.0000001
#define LD long double

using namespace std;

ifstream fin("dmin.in");
ofstream fout("dmin.out");

int N, M, i, j, A, B, C;
int dp[VAL], nod;
LD X, cost[VAL];
bool ok[VAL];
vector < pair <int, LD> > G[VAL];
vector < pair <int, LD> > :: iterator it;
queue <int> Q;

void BFS()
{
    Q.push(1);
    while (Q.empty()==false)
    {
        nod=Q.front();
        Q.pop();
        for (it=G[nod].begin(); it!=G[nod].end(); it++)
        {
            if (cost[it->F]>cost[nod]+it->S)
            {
                cost[it->F]=cost[nod]+it->S;
                Q.push(it->F);
            }
        }
    }
}

int GETDP(int nod)
{
    if (ok[nod]==true)
        return dp[nod];
    vector < pair <int, LD> > :: iterator it;
    for (it=G[nod].begin(); it!=G[nod].end(); it++)
    {
        if (abs(cost[nod]-cost[it->F]-it->S)<EPS)
        {
            dp[nod]+=GETDP(it->F);
            dp[nod]%=MOD;
        }
    }
    ok[nod]=true;
    return dp[nod];
}

int main()
{
    fin >> N >> M;
    for (i=1; i<=M; i++)
    {
        fin >> A >> B >> C;
        X=C;
        X=log2(X);
        if (1<i && i<=N)
            cost[i]=INF;
        G[A].push_back({B, X});
        G[B].push_back({A, X});
    }
    cost[N]=INF;
    BFS();
    dp[1]=1;
    ok[1]=true;
    for (i=2; i<=N; i++)
    {
        dp[i]=GETDP(i);
        fout << dp[i] << " ";
    }
    fin.close();
    fout.close();
    return 0;
}