Cod sursa(job #1732539)

Utilizator catu_bogdan_99Catu Bogdan catu_bogdan_99 Data 21 iulie 2016 20:52:43
Problema Drumuri minime Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.67 kb
#include <cstdio>
#include <vector>
#include <queue>
#include <cmath>
using namespace std;


#define NMAX 1505
#define MOD 104659
#define INFI 10000.0
#define PREC 1e-10

vector < pair < double, int > > v[ NMAX ];
priority_queue < pair < double, int > > Q;

double dist[ NMAX ];
int in_queue[ NMAX ];
int dinamica[ NMAX ];

void aflaDrumuri( int nod ){

    int i, k, fiu;
    double cost;

    dist[ nod ] = 0;
    dinamica[ nod ] = 1;
    Q.push( { 0.0, nod } );

    while( !Q.empty() ){
        nod = Q.top().second;
        Q.pop();
        if( in_queue[ nod ] ) continue;
        in_queue[ nod ] = 1;
        for( i = 0; i < v[ nod ].size(); ++i ){
            fiu = v[ nod ][ i ].second;
            cost = v[ nod ][ i ].first;
            if( dist[ fiu ] - ( dist[ nod ] + cost ) > PREC ){
                dist[ fiu ] = dist[ nod ] + cost;
                dinamica[ fiu ] = dinamica[ nod ];
                Q.push( { -dist[ fiu ], fiu } );
            }
            else if( fabs( dist[ fiu ] - ( dist[ nod ] + cost ) ) < PREC ){
                dinamica[ fiu ] += dinamica[ nod ];
                dinamica[ fiu ] %= MOD;
            }
        }
    }



}

int main()
{

    freopen("dmin.in","r",stdin);
    freopen("dmin.out","w",stdout);

    int n, m, i, j, s, t, d, k, x, y, c;

    scanf("%d%d",&n,&m);
    while( m-- ){
        scanf("%d%d%d",&x,&y,&c);
        v[ x ].push_back( { log10( c ), y } );
        v[ y ].push_back( { log10( c ), x } );
    }

    for( i = 1; i <= n; ++i )
        dist[ i ] = INFI;

    aflaDrumuri( 1 );
    for( i = 2; i <= n; ++i )
        printf("%d ",dinamica[ i ]);


    return 0;

}