Submission #942150

#	Time	Username	Problem	Language	Result	Execution time	Memory
942150		Mathias	Cheap flights (LMIO18_pigus_skrydziai)	C++14	12 / 100	3046 ms	93628 KiB

pigus_skrydziai

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 5e5+7;
long long t[MAXN]; 
vector<pair<int,int> > v;
vector<int>g[MAXN];
map<pair<int,int>,long long>w;
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n,m,a,b,c,s;
	long long res=0;
	cin>>n>>m;
	for(int i=1;i<=m;i++){
		cin>>a>>b>>c;
		t[a]+=c; t[b]+=c;
		g[a].push_back(b); g[b].push_back(a);
		v.push_back({a,b});
		w[{a,b}]=w[{b,a}]=c;
	}
	for(int i=1;i<=n;i++){
		res=max(res,t[i]);
	}
	for(auto k:v){
		a=k.first; b=k.second;
		for(int i=0;i<g[a].size();i++){
			s=g[a][i];
			if(w.count({b,s})) res=max(res,w[{a,b}]+w[{a,s}]+w[{b,s}]);
		}
	}
	cout<<res<<'\n';
	return 0;
}

Compilation message (stderr)

pigus_skrydziai.cpp: In function 'int main()':
pigus_skrydziai.cpp:25:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int i=0;i<g[a].size();i++){
      |               ~^~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 25
• Subtask 3: 0 / 16
• Subtask 4: 0 / 47