Submission #796351

#TimeUsernameProblemLanguageResultExecution timeMemory
796351vjudge1Team Contest (JOI22_team)C++14
0 / 100
1 ms340 KiB
#include<bits/stdc++.h>
#define fi first
#define se second
#define ll long long
using namespace std ;
const ll N = 2e5 ;
ll n, ans = -1, x[N + 1], y[N + 1], z[N + 1] ;
set<pair<ll, ll>> vx, vy, vz ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    for(ll i = 1 ; i <= n ; i++)
    {
        cin >> x[i] >> y[i] >> z[i] ;
        vx.insert({x[i], i}) ;
        vy.insert({y[i], i}) ;
        vz.insert({z[i], i}) ;
    }
    while(vx.size())
    {
        ll px = (*vx.rbegin()).se, py = (*vy.rbegin()).se, pz = (*vz.rbegin()).se ;
        if(px == py)
        {
            vx.erase({x[px], px}) ;
            vy.erase({y[px], px}) ;
            vz.erase({z[px], px}) ;
            continue ;
        }
        if(px == pz)
        {
            vx.erase({x[px], px}) ;
            vy.erase({y[px], px}) ;
            vz.erase({z[px], px}) ;
            continue ;
        }
        if(py == pz)
        {
            vx.erase({x[py], py}) ;
            vy.erase({y[py], py}) ;
            vz.erase({z[py], py}) ;
            continue ;
        }
        ans = x[px] + y[py] + z[pz] ;
        break ;
    }
    cout << ans ;
    return 0 ;
}
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