Submission #318381

#	Time	Username	Problem	Language	Result	Execution time	Memory
318381		neki	Crocodile's Underground City (IOI11_crocodile)	C++14	100 / 100	603 ms	75076 KiB

crocodile

#include <bits/stdc++.h>
#include "crocodile.h"
#define fore(i, a) for(auto&& i:a)
#define fi first
#define se second
#define ps(a) push_back(a)
#define pb(a) pop_back(a)
#define sc scanf
#define vc vector
#define pa pair<ll, ll>
#define ll int
#define loop(i, a, b) for(ll i=a;i<b;i++)
#define pool(i, a, b) for(ll i=a-1;i>=b;i--)
#define lb lower_bound
#define ub upper_bound
#define all(a) a.begin(), a.end()
#define llmax LLONG_MAX/2
#define llmin -LLONG_MAX/2
using namespace std;
#define mn 200100
#define pa pair<ll, ll>
#define ld long double
vc<pa> edg[mn];
ll vis[mn];
int travel_plan(int n,int m,int r[][2],int l[],int k,int p[]){
    loop(i, 0, m){
        edg[r[i][0]].ps(make_pair(r[i][1], l[i]));
        edg[r[i][1]].ps(make_pair(r[i][0], l[i]));
    }
    priority_queue<pa> q;loop(i, 0, k) q.emplace(0, p[i]), vis[p[i]]=1;
    while(q.size()){
        ll u=q.top().se, d=q.top().fi;q.pop();
        if(vis[u]++ ==1){
            if(u==0) return -d;
            fore(v, edg[u]) q.emplace(d-v.se, v.fi);
        }
    }
}

Compilation message (stderr)

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:30:24: warning: control reaches end of non-void function [-Wreturn-type]
   30 |     priority_queue<pa> q;loop(i, 0, k) q.emplace(0, p[i]), vis[p[i]]=1;
      |                        ^

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