이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include "swap.h"
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef vector<ll> vi;
typedef vector<vector<ll>> vvi;
typedef pair<ll,ll> pi;
typedef map<ll,ll> mi;
typedef long double ld;
typedef vector<ld> vd;
typedef vector<vector<ld>> vvd;
typedef pair<ld,ld> pd;
#define ff first
#define ss second
#define srt(a) sort(a.begin(),a.end());
#define fip(k, n) for (ll i = k; i < n; i++)
#define fjp(k, n) for (ll j = k; j < n; j++)
#define fin(k, n) for (ll i = k; i >= n; i--)
#define fjn(k, n) for (ll j = k; j >= n; j--)
#define fp(k, n, m) for (ll k = n; k < m; k++)
#define fn(k, n, m) for (ll k = n; k >= m; k--)
#define ordered_set tree<pi, null_type,less< pi >, rb_tree_tag,tree_order_statistics_node_update>
#define totalOne(n) __builtin_popcount(n)
#define backZero(n) __builtin_ctzll(n)
#define frontZero(n) __builtin_clzll(n)
#define fx(k) for ( auto x : k )
#define test ll t;cin >> t;while (t--)
#define nli "\n"
// ==========================(debug)============================================================================================== //
#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _printn(x); cerr << nli;
#else
#define debug(x)
#endif
void _printn(ll x){ cerr<<x<<" "; }
void _printn(int x){ cerr<<x<<" "; }
void _printn(ld x){ cerr<<x<<" "; }
void _printn(double x){ cerr<<x<<" "; }
void _printn(string x){ cerr<<x<<" "; }
void _printn(char x){ cerr<<x<<" "; }
void _printn(bool x){ cerr<<x<<" "; }
template<class T,class V>void _printn(pair<T,V> vv);
template<class T> void _printn(vector<T> vv);
template<class T> void _printn(set<T> vv);
template<class T,class V> void _printn(map<T,V> vv);
template<class T> void _printn(multiset<T> vv);
template<class T,class V>void _printn(pair<T,V> vv){ cerr<<"( ";_printn(vv.ff);cerr<<",";_printn(vv.ss);cerr<<")";}
template<class T> void _printn(vector<T> vv){ cerr<<"[ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"]"; };
template<class T> void _printn(set<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T> void _printn(multiset<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T,class V> void _printn(map<T,V> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
// ==========================(debug)============================================================================================== //
ll n,m,tp,tp2,res,cnt,sum,tptp,ans;
const ll mx = 2e5+5;
const ll mod = 1e9+7;
// ==========================(MOD)=============================================================================================== //
ll mod_add(ll aa,ll bb){ return ((aa%mod)+(bb%mod))%mod; }
ll mod_minus(ll aa,ll bb){ return (((aa%mod)-(bb%mod))+10*mod)%mod; }
ll mod_mul(ll aa,ll bb){ return ((aa%mod)*(bb%mod))%mod; }
ll mod_power(ll aa,ll bb){ aa%=mod; ll empowered = 1; bb%=mod-1; while(bb > 0){ if(bb & 1) empowered = mod_mul(empowered,aa); bb = bb >> 1; aa = mod_mul(aa,aa); } return empowered; }
ll mod_divi(ll aa,ll bb){ aa=mod_mul(aa,mod_power(bb,mod-2)); return aa; }
// ==========================(MOD)=============================================================================================== //
bool f = false;
// vi adj[mx];
// typedef struct EDGE{
// ll src,dest,wet;
// void init(ll aa,ll bb,ll cc){
// src = aa;
// dest = bb;
// wet = cc;
// return;
// }
// }edge;
// edge qt;
// bool cmp(const edge &aa,const edge &bb){
// return aa.wet < bb.wet;
// }
// vector<edge> ve;
// typedef struct Disjoint_Set_Union{
// vi parent,siz;
// vector<bool> flag,flag2;
// vi degree;
// ll srcparent,destparent;
// void init(ll k){
// parent.resize(k+5);
// siz.resize(k+5,1);
// degree.resize(k+5,0);
// flag.resize(k+5,false);
// flag2.resize(k+5,false);
// fip(0,k+5){
// parent[i] = i;
// degree[i] = 0;
// flag2[i] = flag[i] = false;
// siz[i] = 1;
// }
// return;
// }
// ll find(ll k){
// return parent[k] == k ? k : parent[k] = find(parent[k]);
// }
// bool unite(ll u,ll v){
// srcparent=find(u);
// destparent=find(v);
// degree[u]++;
// degree[v]++;
// if(degree[u]>2)
// flag2[srcparent] = 1;
// if(degree[v]>2)
// flag2[destparent] = 1;
// if(srcparent==destparent){
// flag[srcparent] = 1;
// return 0;
// }
// if(siz[srcparent] < siz[destparent])
// swap(srcparent,destparent);
// parent[destparent] = srcparent;
// siz[srcparent] += siz[destparent];
// flag[srcparent] = flag[srcparent] | flag[destparent];
// flag2[srcparent] = flag2[srcparent] | flag2[destparent];
// return 1;
// }
// }DSU;
// DSU dsu;
multiset<ll> st;
ll wet[mx];
void init(int N, int M,vector<int> U,vector<int> V,vector<int> W) {
n = N;
m = M;
st.clear();
fip(0,m){
wet[V[i]] = W[i];
st.insert(W[i]);
}
return;
}
set<ll> st2;
int getMinimumFuelCapacity(int X, int Y) {
if(m<=2)
return -1;
cnt = 0;
ans = -1;
// debug(X);
// 10507
// 29316
// 94489
// 134972
// 146989
// if(f){
// debug(X);
// debug(Y);
// debug((long long)st.size());
// }
if(X){
cnt++;
ans = max(ans,wet[X]);
st.erase(st.find(wet[X]));
}
// debug(ans);
if(Y){
cnt++;
ans = max(ans,wet[Y]);
st.erase(st.find(wet[Y]));
}
// if(f){
// debug(X);
// debug(Y);
// debug((long long)st.size());
// }
fx(st){
cnt++;
ans = max(ans,x);
if(cnt==3)
break;
}
if(X)
st.insert(wet[X]);
if(Y)
st.insert(wet[Y]);
// if(f){
// debug(X);
// debug(Y);
// debug((long long)st.size());
// }
return ans;
}
// int main(){
// ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
// #ifndef ONLINE_JUDGE
// freopen("input1.txt", "r", stdin);
// freopen("output1.txt", "w", stdout);
// freopen("error1.txt", "w", stderr);
// #endif // ONLINE_JUDGE
// int N,M;
// cin>>N>>M;
// vector<int> U(M),V(M),W(M);
// fip(0,M){
// cin>>U[i]>>V[i]>>W[i];
// }
// // st2.insert(10507);
// // st2.insert(29316);
// // st2.insert(94489);
// // st2.insert(134972);
// // st2.insert(146989);
// // debug(W);
// init(N,M,U,V,W);
// ll Q;
// cin>>Q;
// int sr,de;
// fip(0,Q){
// cin>>sr>>de;
// cout<<getMinimumFuelCapacity(sr,de)<<nli;;
// }
// cerr << "Time elapsed: " << setprecision(6) << 1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
// return 0;
// }
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