Submission #137016

#	Time	Username	Problem	Language	Result	Execution time	Memory
137016		MladenP	Crocodile's Underground City (IOI11_crocodile)	C++17	100 / 100	904 ms	67364 KiB

crocodile

#include "crocodile.h"
#include <bits/stdc++.h>
#define MAXN 100010
#define STIZE(x) fprintf(stderr, "STIZE%d\n", x);
#define PRINT(x) fprintf(stderr, "%s = %d\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define mid (l+r)/2
#define endl '\n'
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
priority_queue<pii, vector<pii>, greater<pii> > pq;
int dist[MAXN], pos[MAXN];
vector<pii> adj[MAXN];
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]) {
    for(int i = 0; i < N; i++) dist[i] = pos[i] = -1;
    for(int i = 0; i < K; i++) {
        pq.push({0, P[i]});
        pq.push({0, P[i]});
    }
    for(int i = 0; i < M; i++) {
        adj[R[i][0]].pb({R[i][1], L[i]});
        adj[R[i][1]].pb({R[i][0], L[i]});
    }
    while(!pq.empty()) {
        pii vrh = pq.top(); pq.pop();
        if(dist[vrh.se] != -1 && pos[vrh.se] != -1) continue;
        else if(pos[vrh.se] == -1) {
            pos[vrh.se] = vrh.fi;
        } else {
            dist[vrh.se] = vrh.fi;
            for(auto x : adj[vrh.se]) {
                if(dist[x.fi] == -1) {
                    pq.push({vrh.fi+x.se, x.fi});
                }
            }
        }
    }
    return dist[0];
}

• Subtask 1: 46 / 46
• Subtask 2: 43 / 43
• Subtask 3: 11 / 11