Submission #290275

#	Time	Username	Problem	Language	Result	Execution time	Memory
290275		beso123	Fun Tour (APIO20_fun)	C++14	26 / 100	2099 ms	23408 KiB

fun

#include "fun.h"
#include <bits/stdc++.h>
#define pii pair<int,int>
#define x first
#define y second
using namespace std;
vector<int> get_pas(set<pii> s1,set<pii> s2){
    vector<int> ans;
    int d=1;
if(s2.size()>s1.size())
    d=2;
while(true){
        pii v;
    if(d==1){
        v=*s1.begin();
        s1.erase(s1.begin());
        ans.push_back(v.y);
    }
    else{
               v=*s2.begin();
        s2.erase(s2.begin());
        ans.push_back(v.y);
    }
    d=3-d;
    if(s1.size()==0 && s2.size()==0)
        break;
}
return ans;
}
bool check(set<pii> s1,set<pii> s2,set<pii> s3){
    if((int)s1.size()+(int)s2.size()==s3.size())
        return true;
    return false;
}
vector<int> off(set<pii> s1,set<pii> s2,set<pii> s3,int d){
   set<pii>::iterator it;
   for(it=s2.begin();it!=s2.end();it++){
    s1.insert(*it);
   }
   if(d==-1)
   return get_pas(s3,s1);
   else return get_pas(s1,s3);
}
vector<int> createFunTour(int n,int Q1){
    if(n==2){
        return {0,1};
    }
int cnt=0,csize=INT_MAX;
for(int k=1;k<n;k++){
    int Size=attractionsBehind(0,k);
    if((Size-1)>=(n/2)){
        if(Size<csize){
            csize=Size;
            cnt=k;
        }
    }
}
vector<int> dist(n,0);
vector<int> P,al;
for(int k=0;k<n;k++){
    if(k==cnt)
        continue;
al.push_back(k);
    dist[k]=hoursRequired(k,cnt);
    if(dist[k]==1)
        P.push_back(k);
}
set<pii> s1,s2,s3;
for(int k=0;k<al.size();k++){
    int a=al[k];
    if(dist[a]==hoursRequired(P[0],a)+1){
            al[k]++;
        al[k]*=-1;
        s1.insert({-dist[a],a});
    }
}
for(int k=0;k<al.size();k++){
        if(al[k]<0)
        continue;
    int a=al[k];
    if(dist[a]==hoursRequired(P[1],a)+1){
            al[k]++;
        al[k]*=-1;
        s2.insert({-dist[a],a});
    }
}
if(P.size()!=2){
   for(int k=0;k<al.size();k++){
        if(al[k]<0)
        continue;
    int a=al[k];
    s3.insert({-dist[a],a});
}
}
set<pii>::iterator it;
vector<int> ans;
vector<int> p;
if(P.size()==2){
    ans=get_pas(s1,s2);
}
else{
    int cur=0;
      while(true){

   if(check(s1,s2,s3)){
       int d=1;
        if(cur!=3)
        d=-1;
    p=off(s1,s2,s3,d);
    break;
   }
      if(check(s3,s2,s1)){
           int d=1;
        if(cur!=1)
        d=-1;
    p=off(s3,s2,s1,d);
    break;
   }
      if(check(s1,s3,s2)){
           int d=1;
        if(cur!=2)
        d=-1;
    p=off(s1,s3,s2,d);
    break;
   }
    pii v1=*s1.begin(),v2=*s2.begin(),v3=*s3.begin();
    if(cur==1)
        v1.x=1;
    if(cur==2)
        v2.x=1;
    if(cur==3)
        v3.x=1;
    int mn=min(v1.x,min(v2.x,v3.x));
    if(mn==v1.x){
        ans.push_back(v1.y);
        cur=1;
        s1.erase(s1.begin());
    }
    else
        if(mn==v2.x){
        ans.push_back(v2.y);
        cur=2;
        s2.erase(s2.begin());
    }
    else
        if(mn==v3.x){
        ans.push_back(v3.y);
        cur=3;
        s3.erase(s3.begin());
    }
    }

}
for(int k=0;k<p.size();k++)
    ans.push_back(p[k]);
ans.push_back(cnt);
return ans;
}

Compilation message (stderr)

fun.cpp: In function 'bool check(std::set<std::pair<int, int> >, std::set<std::pair<int, int> >, std::set<std::pair<int, int> >)':
fun.cpp:31:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     if((int)s1.size()+(int)s2.size()==s3.size())
      |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
fun.cpp: In function 'std::vector<int> createFunTour(int, int)':
fun.cpp:69:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   69 | for(int k=0;k<al.size();k++){
      |             ~^~~~~~~~~~
fun.cpp:77:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 | for(int k=0;k<al.size();k++){
      |             ~^~~~~~~~~~
fun.cpp:88:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |    for(int k=0;k<al.size();k++){
      |                ~^~~~~~~~~~
fun.cpp:154:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  154 | for(int k=0;k<p.size();k++)
      |             ~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 16 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 19
• Subtask 5: 0 / 34