Submission #606560

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
606560	2022-07-26 07:10:48	rrrr10000	Sky Walking (IOI19_walk)	C++14	100 / 100	1515 ms	264060 KiB

walk

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#include "walk.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> P;
typedef tuple<ll,ll,ll> PP;
typedef vector<P> vp;
typedef vector<vp> vvp;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define REP(i,k,n) for(ll i=(ll)(k);i<(ll)(n);i++)
#define pb emplace_back
#define all(a) a.begin(),a.end()
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
#define SPQ(a) priority_queue<a,vector<a>,greater<a>>
#define fi first
#define se second
#define rsort(a) {sort(all(a));reverse(all(a));}
template<class T> bool chmin(T&a,T b){if(a>b){a=b;return true;}return false;}
template<class T> void outvp(T v){rep(i,v.size()){cout<<'('<<v[i].fi<<','<<v[i].se<<')';}cout<<endl;}
const ll inf=1001001001001001001;
ll dijkstra(ll n,vector<PP> edge,ll from,ll to){
  vvp g(n);
  for(auto x:edge){
    ll a,b,c;tie(a,b,c)=x;
    g[a].pb(b,c);g[b].pb(a,c);
  }
  SPQ(P) pq;pq.emplace(0,from);
 
 
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Compilation message (stderr)

walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:107:17: warning: 'T' may be used uninitialized in this function [-Wmaybe-uninitialized]
  107 |  return dijkstra(cnt,edge,F,T);
      |         ~~~~~~~~^~~~~~~~~~~~~~
walk.cpp:107:17: warning: 'F' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 15 / 15
• Subtask 4: 18 / 18
• Subtask 5: 43 / 43