oj.uz

Submission #905861

# Submission time Handle Problem Language Result Execution time Memory
905861 2024-01-13T05:29:01 Z Faisal_Saqib Palembang Bridges (APIO15_bridge) C++17
22 / 100
 43 ms 2452 KB 
#include <iostream>
#include <set>
#include <algorithm>
#include <vector>
using namespace std;
long long BFG(vector<int>& neq)
{
	int s=0;
	int e=neq.size();
	if(s==e)
		return 0;
	long long final=1e18;
	long long sum=0,ot=0;
	for(int j=s;j<e;j++)
		sum+=neq[j];
	for(int i=s;i<e;i++)
	{
		sum-=neq[i];
		ot+=neq[i];
		long long bf=i+1-s;
		long long af=e-i-1;
		final=min(final,(bf*((long long)(neq[i])))-ot + (sum-(af*((long long)neq[i]))));
	}
	return final;
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int k,n;
	cin>>k>>n;
	long long total=0;
	vector<pair<int,int>> vlp;
	vector<int> neq;
	for(int j=0;j<n;j++)
	{
		char a,c;
		int b,d;
		cin>>a>>b>>c>>d;
		if(a!=c)
		{
			neq.push_back(b);
			neq.push_back(d);
			vlp.push_back({b,d});
			total+=1;
		}
		else
		{
			total+=abs(b-d);
		}
	}
	sort(begin(neq),end(neq));
	sort(begin(vlp),end(vlp));
	if(k==1)
	{		
		cout<<total+BFG(neq)<<'\n';
	}
	else
	{
		if(vlp.size()==0)
		{
			cout<<total<<'\n';
			return 0;
		}
		long long pl=1e18;
		for(int j=0;j<vlp.size();j++)
		{
			vector<int> fpp,spp;
			for(int k=0;k<j;k++)
			{
				fpp.push_back(vlp[k].first);
				fpp.push_back(vlp[k].second);
			}
			for(int k=j;k<vlp.size();k++)
			{
				spp.push_back(vlp[k].first);
				spp.push_back(vlp[k].second);
			}
			sort(begin(fpp),end(fpp));
			sort(begin(spp),end(spp));
			pl=min(pl,BFG(fpp)+BFG(spp));
			// if((BFG(0,j)+BFG(j+1,neq.size()))==5)
			// {
			// 	cout<<"For "<<j<<endl;
			// }
		}
		cout<<total+pl<<'\n';
	}
	return 0;
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:67:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |   for(int j=0;j<vlp.size();j++)
      |               ~^~~~~~~~~~~
bridge.cpp:75:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   75 |    for(int k=j;k<vlp.size();k++)
      |                ~^~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 596 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 19 ms 2244 KB Output is correct
13 Correct 39 ms 2248 KB Output is correct
14 Correct 30 ms 2000 KB Output is correct
15 Correct 22 ms 1484 KB Output is correct
16 Correct 22 ms 2248 KB Output is correct
17 Correct 28 ms 2000 KB Output is correct
18 Correct 31 ms 2244 KB Output is correct
19 Correct 43 ms 2244 KB Output is correct
20 Correct 24 ms 2244 KB Output is correct
21 Correct 33 ms 2452 KB Output is correct

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Incorrect 2 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

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

Subtask #5
0 / 37.0

# 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 Correct 1 ms 348 KB Output is correct
4 Incorrect 1 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -