Submission #557237

#	Time	Username	Problem	Language	Result	Execution time	Memory
557237		NintsiChkhaidze	trapezoid (balkan11_trapezoid)	C++14	5 / 100	297 ms	44300 KiB

trapezoid

#include <bits/stdc++.h>
#define pb push_back
#define s second
#define f first
#define ll long long
#define int ll
#define left (h<<1),l,((l+r)>>1)
#define right ((h<<1)|1),((l+r)>>1) + 1,r
using namespace std;
const int N = 400005,mod = 30013;
map <int,int> mp;
int a[N],b[N],c[N],d[N];
pair <int,int> t[4*N];
vector <int> v;
queue <pair<pair<int,int>,pair<int,int> > > q;
vector <pair<pair<int,int>,int> > vec;

void upd(int h,int l,int r,int idx,int val1,int val2){
    if (l == r){
        if (val1 == t[h].f) t[h].s = (val2 + t[h].s)%mod;
        else if (val1 > t[h].f) t[h] = {val1,val2};
        return;
    }
    if(idx > (l+r)/2) upd(right,idx,val1,val2);
    else upd(left,idx,val1,val2);
    
    if (t[h*2].f > t[h*2 + 1].f) t[h] = t[h*2];
    else if (t[h*2].f < t[h*2 + 1].f) t[h] = t[h*2 + 1];
    else t[h] = {t[h*2].f,(t[h*2].s + t[h*2+1].s)%mod};
}
pair<int,int> get(int h,int l,int r,int L,int R){
    if (r < L || R < l) return {0,0};
    if (L <= l && r <= R) return t[h];
    pair <int,int> a = get(left,L,R),b = get(right,L,R);
    if (a.f > b.f) return a;
    if (b.f > a.f) return b;
    return {a.f,(a.s + b.s)%mod};
}
signed main() {
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
    int n;
    cin>>n;
    
    for (int i = 1; i <= n; i++){
        cin>>a[i]>>b[i]>>c[i]>>d[i];
        v.pb(a[i]);
        v.pb(b[i]);
        v.pb(c[i]);
        v.pb(d[i]);
        
    }
    sort(v.begin(),v.end());
    int k=0;
    for (int i=0;i<v.size();i++){
        if (!i || v[i] != v[i - 1]) k++;
        mp[v[i]] = k;
    }
    
    for (int i = 1; i <= n; i++){
        a[i] = mp[a[i]];
        b[i] = mp[b[i]];
        c[i] = mp[c[i]];
        d[i] = mp[d[i]];
        vec.pb({{a[i],b[i]},i});
    }
    
    sort(vec.begin(),vec.end());
    for (int i = 0; i < vec.size(); i++){
        int id = vec[i].s,x=vec[i].f.f,y=vec[i].f.s;
        while(q.size() && q.front().f.f < x){
            upd(1,1,N-5,q.front().f.s,q.front().s.f,q.front().s.s);
            q.pop();
        }
        
        pair <int,int> pr = get(1,1,N-5,1,c[id]);
        int len = pr.f,cnt = pr.s;
        if (len == 0) cnt=1;
        q.push({{b[id],d[id]},{len+1,cnt}});
    }
    
    while(q.size()){
        upd(1,1,N-5,q.front().f.s,q.front().s.f,q.front().s.s);
        q.pop();
    }
    cout<<t[1].f<<" "<<t[1].s;
}

Compilation message (stderr)

trapezoid.cpp: In function 'int main()':
trapezoid.cpp:54:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for (int i=0;i<v.size();i++){
      |                  ~^~~~~~~~~
trapezoid.cpp:68:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<std::pair<long long int, long long int>, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |     for (int i = 0; i < vec.size(); i++){
      |                     ~~^~~~~~~~~~~~
trapezoid.cpp:69:40: warning: unused variable 'y' [-Wunused-variable]
   69 |         int id = vec[i].s,x=vec[i].f.f,y=vec[i].f.s;
      |                                        ^

• Subtask 1: 5 / 100