Submission #592193

#	Time	Username	Problem	Language	Result	Execution time	Memory
592193		Kipras	Colouring a rectangle (eJOI19_colouring)	C++17	0 / 100	18 ms	24316 KiB

colouring

#include <bits/stdc++.h>
 
typedef long long ll;
 
using namespace std;
 
const ll maxN = 5e5+10;
 
ll n, m;
ll v[maxN]={0};
vector<ll> adj[maxN];
map<pair<ll, ll>, ll> a;
 
int main()
{
 
    ios_base::sync_with_stdio(0);cin.tie(nullptr);
 
    cin>>n>>m;
    for(int i = 0; i < m; i++){
        ll aa, bb, cc;
        cin>>aa>>bb>>cc;
        v[aa]+=cc;
        v[bb]+=cc;
        adj[aa].push_back(bb);
        adj[bb].push_back(aa);
        a[{aa, bb}]=cc;
        a[{bb, aa}]=cc;
    }
 
    ll res=0;
 
    for(int i = 1; i <= n; i++){
        res=max(res, v[i]);
        for(ll x = 0; x < (ll)(adj[i].size())-1; x++){
            ll v=adj[i][x], vv=adj[i][x+1];
            if(a.count({i, x})){
                res=max(res, a[{i, v}]+a[{i, vv}]+a[{v, vv}]);
            }
        }
    }
 
    cout<<res;
 
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20