oj.uz

답안 #982903

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
982903 2024-05-15T02:49:01 Z tamir1 Palembang Bridges (APIO15_bridge) C++17
22 / 100
 35 ms 3692 KB 
#include<bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ordered_set tree<ll,null_type,less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update>
using namespace __gnu_pbds;
using namespace std;
ll ans,n,k,i,j,x,y,l,m,a[200005],z,mn,a1,a2,m1,m2;
vector<pair<ll,ll>> v;
char s,t;
bool cmp(pair<ll,ll> a,pair<ll,ll> b){
	return (double)(a.ff+a.ss)/2<(double)(b.ff+b.ss)/2;
}
ordered_set p,q;
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> k >> n;
	for(i=1;i<=n;i++){
		cin >> s >> x >> t >> y;
		if(s==t) ans+=abs(x-y);
		else{
			ans++;
			l++;
			a[l]=x;
			l++;
			a[l]=y;
			if(x>y) swap(x,y);
			v.push_back({x,y});
		}
	}
	sort(a+1,a+l+1);
	x=a[(l+1)/2];
	if(k==1){
	for(i=1;i<=l;i++){
		ans+=abs(x-a[i]);
	}
	cout << ans;
	return 0;}
	sort(v.begin(),v.end(),cmp);
	if(v.size()==0){
		cout << ans;
		return 0;
	}
	if(v.size()==1){
		cout << ans+v[0].ss-v[0].ff;
		return 0;
	}
	p.insert(v[0].ff);
	p.insert(v[0].ss);
	for(i=1;i<v.size();i++){
		q.insert(v[i].ff);
		q.insert(v[i].ss);
	}
	m1=*p.find_by_order(p.size()/2);
	m2=*q.find_by_order(q.size()/2);
	for(auto it=p.begin();it!=p.end();it++) a1+=abs(*it-m1);
	for(auto it=q.begin();it!=q.end();it++) a2+=abs(*it-m2);
	mn=a1+a2;
	for(i=1;i<v.size()-1;i++){
		ll x=v[i].ff,y=v[i].ss;
		/*p.insert(x);
		m=*p.find_by_order(p.size()/2);
		a1+=abs(x-m1);
		if(p.size()%2==1) a1-=abs(m1-m);
		m1=m;
		p.insert(y);
		m=*p.find_by_order(p.size()/2);
		a1+=abs(y-m1);
		if(p.size()%2==1) a1-=abs(m1-m);
		m1=m;*/
		q.erase(q.upper_bound(x));
		m=*q.find_by_order(q.size()/2);
		if(q.size()%2==1) a2+=abs(m2-m);
		a2-=(m2-x);
		m2=m;
		q.erase(q.upper_bound(y));
		m=*q.find_by_order(q.size()/2);
		if(q.size()%2==1) a2+=abs(m2-m);
		a2-=(m2-y);
		m2=m;
		mn=min(mn,a1+a2);
		p.insert(x);
		p.insert(y);
		//q.erase(q.upper_bound(x));
		//q.erase(q.upper_bound(y));
		a1=0;
		//a2=0;
		m1=*p.find_by_order(p.size()/2);
		//m2=*q.find_by_order(q.size()/2);
		for(auto it=p.begin();it!=p.end();it++) a1+=abs(*it-m1);
		//for(auto it=q.begin();it!=q.end();it++) a2+=abs(*it-m2);
		mn=min(mn,a1+a2);
	}
	cout << ans+mn;
}

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:52:11: 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]
   52 |  for(i=1;i<v.size();i++){
      |          ~^~~~~~~~~
bridge.cpp:61:11: 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]
   61 |  for(i=1;i<v.size()-1;i++){
      |          ~^~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 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 0 ms 348 KB Output is correct
8 Correct 1 ms 348 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 600 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 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 0 ms 348 KB Output is correct
7 Correct 0 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 16 ms 3544 KB Output is correct
13 Correct 35 ms 3692 KB Output is correct
14 Correct 23 ms 3448 KB Output is correct
15 Correct 18 ms 2264 KB Output is correct
16 Correct 19 ms 3544 KB Output is correct
17 Correct 22 ms 3552 KB Output is correct
18 Correct 26 ms 3544 KB Output is correct
19 Correct 30 ms 3540 KB Output is correct
20 Correct 21 ms 3692 KB Output is correct
21 Correct 29 ms 3544 KB Output is correct

Subtask #3
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 460 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# 결과 실행 시간 메모리 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 -