oj.uz

Submission #1026924

# Submission time Handle Problem Language Result Execution time Memory
1026924 2024-07-18T14:00:55 Z vjudge1 Exhibition (JOI19_ho_t2) C++17
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define ld long double
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pld pair<ld, ld>
#define pb push_back
#define fi first
#define se second
#define debug(x) cout << #x << " => " << x << endl
#define all(x) x.begin(),x.end()

int main()
{
	ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
	int n,m;cin>>n>>m;
	pii a[n];
	int b[m];
	for(int i=0;i<n;i++) cin>>a[i].se>>a[i].fi;
	for(int i=0;i<m;i++) cin>>b[i];
	sort(a,a+n);
	sort(b,b+m);

	vector<pii> v;
	int x=lower_bound(b,b+m,a[0].se)-b,y;
	if(x!=m) v.pb({a[0].se,x});
	for(int i=1;i<n;i++)
	{
		x=lower_bound(b,b+m,a[i].se)-b;
		pii p={a[i].se,x};
		y=upper_bound(all(v),p)-v.begin();
		if(v.size()==0)
		{
			if(x!=m) v.pb(p);
		}
		else if(y==v.size())
		{
			x=max(x,v[y-1].se+1);
			if(x!=m) v.pb({a[i].se,x});
		}
		else
		{
			if(y-1>=0) x=max(x,v[y-1].se+1);
			v[y]={a[i].se,x};
		}
		// for(auto j : v) cout<<j.fi<<' '<<j.se<<'\n';cout<<'\n';
	}
	cout<<v.size();
	return 0;
}

Compilation message

joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:38:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |   else if(y==v.size())
      |           ~^~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -