Submission #885241

#	Time	Username	Problem	Language	Result	Execution time	Memory
885241		raul2008487	Matryoshka (JOI16_matryoshka)	C++17	51 / 100	2017 ms	11472 KiB

matryoshka

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define eb emplace_back
#define vl vector<ll>
#define fi first
#define se second
#define in insert
#define mpr make_pair
#define lg(x) __lg(x)
#define bpc(x) __builtin_popcount(x)
#define all(v) v.begin(), v.end()
#define endl "\n"
using namespace std;
const int sz = 2e5+5; /// sz is changed
const int mod = 1e9+7;
const ll inf = 10000000000;
void solve(){
    ll n, q, i, j, x, y;
    cin>>n>>q;
    vl a(n), h(n);
    vector<pair<ll,ll>> v;
    for(i=0;i<n;i++){
        cin>>a[i]>>h[i];
        v.pb({a[i], h[i]});
    }
    sort(all(v));
    while(q--){
        cin>>x>>y;
        auto lx = lower_bound(all(v), mpr(x, 0*1LL));
        ll ix = (lx - v.begin());
        multiset<ll> ms;
        vector<pair<ll,ll>> ad;
        for(i = ix; i<n; i++){
            if(v[i].se <= y){
                if(ad.size() && ad.back().fi != v[i].fi){
                    for(j=0;j<ad.size();j++){
                        ms.in(ad[j].se);
                    }
                    ad.clear();
                }
                auto x = ms.lower_bound(v[i].se);
                if(x != ms.begin()){
                    x--;
                    ms.erase(x);
                }
                ad.pb(v[i]);
            }
        }
        for(j=0;j<ad.size();j++){
            ms.in(ad[j].se);
        }
        cout << ms.size() << endl;
    }
 
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //precomp();
    ll tst=1;
    //cin>>tst;
    while(tst--){
        solve();
    }
}
/*
7 3
9 5
3 7
10 6
5 10
2 6
10 10
4 1
10 5
3 5
3 9
*/

Compilation message (stderr)

matryoshka.cpp: In function 'void solve()':
matryoshka.cpp:37:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |                     for(j=0;j<ad.size();j++){
      |                             ~^~~~~~~~~~
matryoshka.cpp:50:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |         for(j=0;j<ad.size();j++){
      |                 ~^~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25
• Subtask 4: 0 / 49