Submission #284975

#	Time	Username	Problem	Language	Result	Execution time	Memory
284975		3zp	Aesthetic (NOI20_aesthetic)	C++14	0 / 100	759 ms	115448 KiB

Aesthetic

#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N = 500009;
vector<pair<ll, pair<ll, ll > > > v[N];
vector<ll> T[N];
ll d1[N],dn[N], f[N], g[N],ea[N],eb[N],ec[N], par[N],path[N],wh[N];
set<ll > S;
/*
00000111111

*/
void ad(ll x){
    g[x] = 1;
    for(auto E : v[x]){
        ll y = E.first, l = E.second.first,  u= E.second.second;
        auto it= S.find(u);
        if(g[y] == 1) S.erase(it);
        if(g[y] == 0) S.insert(u);
    }
}
ll A = 0;
main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll n, m;
    cin >> n >> m;
    for(ll i = 0; i < m; i++){
        cin>>ea[i]>>eb[i]>>ec[i];
    }
    for(ll i = m-1; i >= 0; i--){
        ll a = ea[i], b = eb[i], c = ec[i];

        v[a].push_back({b, {c,i}});
        v[b].push_back({a, {c,i}});
        A = max(A, c);
    }
    for(int i=1;i<= n; i++)
    ad(i);
}

Compilation message (stderr)

Aesthetic.cpp: In function 'void ad(long long int)':
Aesthetic.cpp:16:25: warning: unused variable 'l' [-Wunused-variable]
   16 |         ll y = E.first, l = E.second.first,  u= E.second.second;
      |                         ^
Aesthetic.cpp: At global scope:
Aesthetic.cpp:23:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   23 | main(){
      |      ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 7
• Subtask 4: 0 / 15
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22
• Subtask 7: 0 / 27