Submission #1064546

#	Time	Username	Problem	Language	Result	Execution time	Memory
1064546		Malix	Evacuation plan (IZhO18_plan)	C++14	23 / 100	517 ms	41568 KiB

plan

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> tii;
typedef vector<ll> li;
typedef vector<li> lii;
 
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define LSOne(s) ((s)&(-s))
 
ll INF=1000000000000000010;
int inf=1e9+10;
ll M=1e9+7;

int n,m,k,q;
vector<vector<pair<int,ll>>> a;
vi b;
vector<ll> dist;

int main() {   
    cin>>n>>m;
    a.resize(n);
    REP(i,0,m){
        int x,y;ll z;
        cin>>x>>y>>z;
        x--;y--;
        a[x].PB({y,z});
        a[y].PB({x,z});
    }
    cin>>k;
    b.resize(k);
    REP(i,0,k)cin>>b[i];
    REP(i,0,k)b[i]--;
    dist.resize(n,INF);
    priority_queue<pair<ll,int>,vector<pair<ll,int>>,greater<pair<ll,int>>> pq;
    REP(i,0,k){
        dist[b[i]]=0;
        pq.push({0,b[i]});
    }
    while(!pq.empty()){
        ll d=pq.top().F;
        int x=pq.top().S;
        pq.pop();
        if(d!=dist[x])continue;
        for(auto u:a[x]){
            if(dist[u.F]<=dist[x]+u.S)continue;
            dist[u.F]=dist[x]+u.S;
            pq.push({dist[u.F],u.F});
        }
    }
    cin>>q;
    while(q--){
        int x,y;cin>>x>>y;
        x--;y--;
        cout<<min(dist[x],dist[y])<<"\n";
    }
}

• Subtask 1: 10 / 10
• Subtask 2: 13 / 13
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 46