oj.uz

Submission #533592

# Submission time Handle Problem Language Result Execution time Memory
533592 2022-03-06T13:58:32 Z alvingogo Exhibition (JOI19_ho_t2) C++14
0 / 100
 1 ms 256 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define cd complex<double>
#define p_q priority_queue
using namespace std;


int main(){
	AquA;
	int n,m;
	cin >> n >> m;
	vector<pair<int,int> > v(n);
	vector<int> p(m);
	for(int i=0;i<n;i++){
		cin >> v[i].fs >> v[i].sc;
	}
	sort(v.begin(),v.end());
	for(int i=0;i<m;i++){
		cin >> p[i];
	}
	sort(p.begin(),p.end());
	int nw=0;
	vector<pair<int,int> > z;
	int ans=0;
	for(int i=0;i<n;i++){
		while(nw<m && p[nw]<v[i].fs){
			nw++;
		}
		if(nw==m){
			break;
		}
		//cout << nw << " " << p[nw] << endl;
		auto h=upper_bound(z.begin(),z.end(),pair<int,int>(v[i].sc,-1))-z.begin();
		int a=h==0?0:max(z[h-1].sc+1,nw);
		//cout << a << endl;
		if(a>=m){
			break;
		}
		if(h==z.size()){
			z.push_back({v[i].sc,a});
		}
		else{
			z[h].fs=v[i].sc;
			z[h].sc=a;
		}
		//cout << v[i].sc << endl;
		//nw++;
	}
	cout << z.size() << "\n";
	return 0;
}

Compilation message

joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:42:7: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   if(h==z.size()){
      |      ~^~~~~~~~~~
joi2019_ho_t2.cpp:27:6: warning: unused variable 'ans' [-Wunused-variable]
   27 |  int ans=0;
      |      ^~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -