Submission #285108

#	Time	Username	Problem	Language	Result	Execution time	Memory
285108		achibasadzishvili	Arcade (NOI20_arcade)	C++14	100 / 100	317 ms	19292 KiB

Arcade

#include<bits/stdc++.h>
#define ll long long
#define f first
#define s second
#define mp make_pair
#define pb push_back
using namespace std;
vector<pair<ll,ll> >v;
ll n,m,t[500005],a[500005];
int main(){
    ios::sync_with_stdio(false);
    cin >> n >> m;
    for(int i=1; i<=m; i++){
        cin >> t[i];
    }
    for(int i=1; i<=m; i++){
        cin >> a[i];
        v.pb(mp(t[i] + a[i] , t[i] - a[i]));
    }
    sort(v.begin() , v.end());
    multiset < int > s;
multiset < int > :: iterator it;
    for(int i=0; i<v.size(); i++){
        ll k = -v[i].s;
        s.insert(k);
        it = s.lower_bound(k);
        it++;
        if(it != s.end())
            s.erase(it);
    }
    
    cout << s.size();
    
    return 0;
}

Compilation message (stderr)

Arcade.cpp: In function 'int main()':
Arcade.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int i=0; i<v.size(); i++){
      |                  ~^~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 21 / 21
• Subtask 5: 14 / 14
• Subtask 6: 20 / 20
• Subtask 7: 15 / 15