oj.uz

Submission #1029012

# Submission time Handle Problem Language Result Execution time Memory
1029012 2024-07-20T11:16:46 Z lucri trapezoid (balkan11_trapezoid) C++17
100 / 100
 152 ms 21616 KB 
#include <bits/stdc++.h>
#define MOD 30013
using namespace std;
struct arboreintervale{int nrmax,fr;}aint[800010],val[100010],pre;
priority_queue<pair<int,pair<int,int>>>q;
int n,a[100010],b[100010],c[100010],d[100010],e[200010];
arboreintervale join(arboreintervale a,arboreintervale b)
{
    if(a.nrmax>b.nrmax)
        return a;
    if(a.nrmax<b.nrmax)
        return b;
    if(a.fr+b.fr>=MOD)
        return {a.nrmax,a.fr+b.fr-MOD};
    return {a.nrmax,a.fr+b.fr};
}
void adauga(int poz,int b,int e,int pozu,arboreintervale val)
{
    if(pozu>e||pozu<b)
        return;
    if(b==e)
    {
        aint[poz]=val;
        return;
    }
    adauga(poz*2,b,(b+e)/2,pozu,val);
    adauga(poz*2+1,(b+e)/2+1,e,pozu,val);
    aint[poz]=join(aint[poz*2],aint[poz*2+1]);
}
void maxim(int poz,int b,int e,int bi,int ei)
{
    if(bi>e||ei<b)
        return;
    if(bi<=b&&e<=ei)
    {
        pre=join(pre,aint[poz]);
        return;
    }
    maxim(poz*2,b,(b+e)/2,bi,ei);
    maxim(poz*2+1,(b+e)/2+1,e,bi,ei);
}
unordered_map<int,int>cod;
int main()
{
    cin>>n;
    for(int i=1;i<=n;++i)
    {
        cin>>a[i]>>b[i]>>c[i]>>d[i];
        e[2*i-1]=c[i];
        e[2*i]=d[i];
    }
    std::sort(e+1,e+2*n+1);
    for(int i=1;i<=2*n;++i)
        cod[e[i]]=i;
    for(int i=1;i<=n;++i)
    {
        c[i]=cod[c[i]];
        d[i]=cod[d[i]];
        q.push({-a[i],{c[i],i}});
        q.push({-b[i],{d[i],-i}});
    }
    while(!q.empty())
    {
        pre={0,1};
        int a=-q.top().first,b=q.top().second.first,c=q.top().second.second;
        q.pop();
        if(c<0)
            adauga(1,1,2*n,b,val[-c]);
        else
        {
            maxim(1,1,2*n,1,b);
            ++pre.nrmax;
            val[c]=pre;
        }
    }
    cout<<aint[1].nrmax<<' '<<aint[1].fr;
    return 0;
}

Compilation message

trapezoid.cpp: In function 'int main()':
trapezoid.cpp:65:13: warning: unused variable 'a' [-Wunused-variable]
   65 |         int a=-q.top().first,b=q.top().second.first,c=q.top().second.second;
      |             ^

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4552 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 3 ms 4700 KB Output is correct
6 Correct 4 ms 4764 KB Output is correct
7 Correct 5 ms 4956 KB Output is correct
8 Correct 6 ms 5164 KB Output is correct
9 Correct 13 ms 6104 KB Output is correct
10 Correct 46 ms 7556 KB Output is correct
11 Correct 37 ms 8544 KB Output is correct
12 Correct 77 ms 14016 KB Output is correct
13 Correct 94 ms 13244 KB Output is correct
14 Correct 112 ms 17664 KB Output is correct
15 Correct 112 ms 17336 KB Output is correct
16 Correct 129 ms 17856 KB Output is correct
17 Correct 134 ms 19128 KB Output is correct
18 Correct 122 ms 19564 KB Output is correct
19 Correct 143 ms 19504 KB Output is correct
20 Correct 152 ms 21616 KB Output is correct