Submission #1311932

#	Time	Username	Problem	Language	Result	Execution time	Memory
1311932		settop	Shortcut (IOI16_shortcut)	C++20	Compilation error	0 ms	0 KiB

shortcut

#include "railroad.h"
#include<bits/stdc++.h>

using namespace std;
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ll long long
#define fall(i,a,b) for(int i=a;i<=b;i++)
#define rfall(i,a,b) for(int i=a;i>=b;i--)
#define pb push_back
#define all(x) x.begin(),x.end()
#define sz(x) (int)x.size()
#define ordered_set tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
const ll inf=1e16;
typedef pair<ll,ll> pii;

vector<int> pai;

int find(int x){
    return x==pai[x]?x:pai[x]=find(pai[x]);
}

long long plan_roller_coaster(std::vector<int> s, std::vector<int> t) {
    int n = sz(s);

    pai.resize(n);

    fall(i,0,n-1) pai[i]=i;

    set<pii> st;

    fall(i,0,n-1) st.insert({s[i],i});

    vector<int> ord;

    fall(i,0,n-1) ord.pb(i);

    sort(all(ord),[&](int a,int b){
        if(t[a]!=t[b]) return t[a]>t[b];
        return a<b;
    });

    bool foi=0;

    for(auto u:ord){
        auto it=st.lower_bound({t[u],-1});
        if(it==st.end() && !foi){
            foi=1;
            continue;
        }
        else if(it==st.end()) return 1;

        auto [x,i]=*it; 
        if(find(i)!=find(u)){
            pai[find(i)]=find(u);
            st.erase(it);
            continue;
        }
        it++;
        if(it==st.end() && !foi){
            foi=1;
            continue;
        }
        else if(it==st.end()) return 1;

        pai[find((*it).second)]=find(u);
        st.erase(it);    
    }

    return 0;
}

Compilation message (stderr)

shortcut.cpp:1:10: fatal error: railroad.h: No such file or directory
    1 | #include "railroad.h"
      |          ^~~~~~~~~~~~
compilation terminated.
shortcut.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
shortcut_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~