Submission #982024

#	Time	Username	Problem	Language	Result	Execution time	Memory
982024		vjudge1	Cyberland (APIO23_cyberland)	C++17	21 / 100	28 ms	6736 KiB

cyberland

#include <bits/stdc++.h>
#define endl '\n'
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define fo(i,n) for(auto i =0 ; i < n;i++)
#define fore(i,l,r) for(auto i = l; i < r;i++)
#define forex(i,r,l) for(auto i = r; i >= l; i--)
#define ffo(i,n) forex(i,n-1,0)
#define all(x) x.begin(),x.end()
#define lsb(x) x&(-x)
#define sz(x) (int)x.size()
#define gcd(a,b) __gcd(a,b)
#define vii vector<ii>
using namespace std;
using ll = long long; using ull = unsigned long long;
using vi = vector<int>;using ii = pair<int,int>;using mii = map<int,int>;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define state pair<ll, int>
double solve(int N, int M, int K, int H, vi x, vi y, vi c, vi arr){
	if(N==2)return *min_element(all(c));
	// if(N==3){

	// }
	vector<vii> graph(N);
	fo(i,M){graph[x[i]].pb({y[i], c[i]});graph[y[i]].pb({x[i], c[i]});}
	vector<ll> minDist(N+1, 1e18),vis(N+1,0);
	priority_queue<state, vector<state>, greater<state>> pq;
	queue<int> q;q.push(0);pq.push({0,0});
	while(!q.empty()){
		auto nodo= q.front();q.pop();
		if(nodo == H)continue;
		if(arr[nodo] == 0)pq.push({0, nodo});
		vis[nodo]=1;
		for(auto [v,w] : graph[nodo])if(!vis[v])q.push(v);
	}fill(all(vis) , 0);minDist[0]=0;
	while(!pq.empty()){
		auto nodo = pq.top().s; auto actcost = pq.top().f;pq.pop();
		// cout << nodo << " " << actcost << endl;
		if(nodo == H) continue;
		if(vis[nodo]) continue;vis[nodo]=1;
		for(auto [v,w] : graph[nodo]){
			if(actcost + w < minDist[v]) {
				minDist[v] = actcost + w;
				pq.push({actcost+w, v});
			}
		}
	}
	return (double)minDist[H];
}

Compilation message (stderr)

cyberland.cpp:20: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   20 | #pragma GCC optimization ("O3")
      | 
cyberland.cpp:21: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   21 | #pragma GCC optimization ("unroll-loops")
      | 
cyberland.cpp: In function 'double solve(int, int, int, int, vi, vi, vi, vi)':
cyberland.cpp:44:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   44 |   if(vis[nodo]) continue;vis[nodo]=1;
      |   ^~
cyberland.cpp:44:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   44 |   if(vis[nodo]) continue;vis[nodo]=1;
      |                          ^~~

• Subtask 1: 0 / 5
• Subtask 2: 8 / 8
• Subtask 3: 13 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3