Submission #925707

#	Time	Username	Problem	Language	Result	Execution time	Memory
925707		andrei_boaca	Team Contest (JOI22_team)	C++17	0 / 100	2084 ms	3636 KiB

team

#include <bits/stdc++.h>

using namespace std;
typedef pair<int,int> pii;
const int INF=1e9;
int n;
struct point
{
    int x,y,z;
} v[150005];
bool byx(point a,point b)
{
    return a.x<b.x;
}
pii ymax,zmax,ymax2,zmax2;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ymax={-INF,INF};
    zmax={INF,-INF};
    ymax2={-INF,INF};
    zmax2={INF,-INF};
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>v[i].x>>v[i].y>>v[i].z;
    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)
        {
            if(ymax.first<=p.y||zmax.second<=p.z)
                continue;
            /// ymax
            int z=-1;
            for(int j=1;j<i;j++)
                if(v[j].y<ymax.first&&v[j].z>ymax.second)
                    z=max(z,v[j].z);
            if(z>p.z)
                ans=max(ans,ymax.first+z+p.x);

            /// zmax
            int y=-1;
            for(int j=1;j<i;j++)
                if(v[j].z<zmax.second&&v[j].y>zmax.first)
                    y=max(y,v[j].y);
            if(y>p.y)
                ans=max(ans,zmax.second+y+p.x);

            /// ymax2
            z=-1;
            for(int j=1;j<i;j++)
                if(v[j].y<ymax2.first&&v[j].z>ymax2.second)
                    z=max(z,v[j].z);
            if(z>p.z)
                ans=max(ans,ymax2.first+z+p.x);

            /// zmax2
            y=-1;
            for(int j=1;j<i;j++)
                if(v[j].z<zmax2.second&&v[j].y>zmax2.first)
                    y=max(y,v[j].y);
            if(y>p.y)
                ans=max(ans,zmax2.second+y+p.x);
        }
        for(point p:a)
        {
            if(p.y>ymax.first||(p.y==ymax.first&&p.z<ymax.second))
            {
                ymax2=ymax;
                ymax={p.y,p.z};
            }
            else if(p.y>ymax2.first||(p.y==ymax2.first&&p.z<ymax2.second))
                ymax2={p.y,p.z};


            if(p.z>zmax.second||(p.z==zmax.second&&p.y<zmax.first))
            {
                zmax2=zmax;
                zmax={p.y,p.z};
            }
            else if(p.z>zmax2.second||(p.z==zmax2.second&&p.y<zmax2.first))
                zmax2={p.y,p.z};
        }
        i=j-1;
    }
    cout<<ans;
    return 0;
}

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