Cod sursa(job #2021300)

Utilizator ionanghelinaIonut Anghelina ionanghelina Data 13 septembrie 2017 10:07:29
Problema Reconst Scor 65
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.18 kb
#include<bits/stdc++.h>
#define inf INT_MAX
#define maxN 2005
using namespace std;
int n,m,x,y,z,nod,pos,nr,val[maxN];
bool seen[maxN];
deque<int> q;
vector<pair<int,int> > v[maxN];
int main()
{
    freopen("reconst.in","r",stdin);
    freopen("reconst.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(int i=1;i<=m;i++)
    {
        scanf("%d%d%d",&x,&y,&z);
        v[x-1].push_back({y,z});
        v[y].push_back({x-1,-z});
    }
    for(int i=1;i<=n;i++) val[i]=inf;
    val[0]=0;
    q.push_back(0);
    seen[0]=1;
    pos=1;
    while(nr<n)
    {
        if(q.empty())
        {
            while(val[pos]==inf) pos++;
            val[pos]=val[pos-1]+1;
            nr++;
            seen[pos]=1;
            q.push_back(pos);
        }
        nod=q.front();
        q.pop_front();
        for(vector<pair<int,int> >::iterator it=v[nod].begin();it!=v[nod].end();it++)
        {
            if(seen[it->first]) continue;
            val[it->first]=val[nod]+it->second;
            nr++;
            q.push_back(it->first);
            seen[it->first]=1;
        }

    }
    for(int i=1;i<=n;i++)
        printf("%d ",val[i]-val[i-1]);
    return 0;
}