Submission #925754

#	Time	Username	Problem	Language	Result	Execution time	Memory
925754		andrei_boaca	Team Contest (JOI22_team)	C++17	55 / 100	2048 ms	5328 KiB

team

#include <bits/stdc++.h>

using namespace std;
typedef pair<int,int> pii;
const int INF=1e9;
int lim=500;
int n;
struct point
{
    int x,y,z;
} v[150005];
bool byx(point a,point b)
{
    return a.x<b.x;
}
bool byy(pii a,pii b)
{
    if(a.first!=b.first)
        return a.first>b.first;
    return a.second<b.second;
}
bool byz(pii a,pii b)
{
    if(a.second!=b.second)
        return a.second>b.second;
    return a.first<b.first;
}
vector<pii> myy,myz;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    myy.push_back({-INF,INF});
    myz.push_back({INF,-INF});
    int maxim=0;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>v[i].x>>v[i].y>>v[i].z;
        maxim=max(maxim,v[i].x);
        maxim=max(maxim,v[i].y);
        maxim=max(maxim,v[i].z);
    }
    if(maxim<=300)
        lim=300;
    if(maxim<=20)
        lim=50;
    int ans=-1;
    sort(v+1,v+n+1,byx);
    for(int i=1;i<=n;i++)
    {
        vector<point> a;
        int j=i;
        while(j<=n&&v[j].x==v[i].x)
        {
            a.push_back(v[j]);
            j++;
        }
        for(point p:a)
        {
            for(pii ymax:myy)
            {
                if(ymax.first<=p.y)
                    continue;
                int z=-1;
                for(pii a:myz)
                    if(a.first<ymax.first&&a.second>ymax.second)
                    {
                        z=max(z,a.second);
                        break;
                    }
                if(z!=-1)
                {
                    if(z>p.z)
                        ans=max(ans,ymax.first+z+p.x);
                    break;
                }
            }
        }
        for(point p:a)
        {
            myy.push_back({p.y,p.z});
            sort(myy.begin(),myy.end(),byy);
            myy.erase(unique(myy.begin(),myy.end()),myy.end());
            if(myy.size()>lim)
                myy.pop_back();
            myz.push_back({p.y,p.z});
            sort(myz.begin(),myz.end(),byz);
            myz.erase(unique(myz.begin(),myz.end()),myz.end());
            if(myz.size()>lim)
                myz.pop_back();
        }
        i=j-1;
    }
    cout<<ans;
    return 0;
}

Compilation message (stderr)

team.cpp: In function 'int main()':
team.cpp:85:26: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   85 |             if(myy.size()>lim)
      |                ~~~~~~~~~~^~~~
team.cpp:90:26: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   90 |             if(myz.size()>lim)
      |                ~~~~~~~~~~^~~~

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 0 / 9
• Subtask 6: 0 / 9
• Subtask 7: 0 / 27