답안 #366143

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
366143	2021-02-13T10:13:20 Z	YJU	Palembang Bridges (APIO15_bridge)	C++14	100 / 100	117 ms	8952 KB

bridge

#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector,Ofast")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=2e5+5;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

priority_queue<ll> pqa;
priority_queue<ll,vector<ll>,greater<ll> > pqb;

ll k,n,sum,x,y,ans,suf[N],pre[N];
char A,B;
vector<pll> v;


void add(ll d){
	if(SZ(pqa)&&d<pqa.top())sum-=d,pqa.push(d);
	else sum+=d,pqb.push(d);
	while(SZ(pqa)>SZ(pqb)){
		d=pqa.top();pqa.pop();pqb.push(d);
		sum+=d*2;
	}
	while(SZ(pqb)>SZ(pqa)+1){
		d=pqb.top();pqb.pop();pqa.push(d);
		sum-=d*2;
	}
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>k>>n;
	REP1(i,n){
		cin>>A>>x>>B>>y;
		if(A==B){ans+=abs(x-y);continue;}
		++ans;
		v.pb(mp(x+y,y));
	}
	sort(v.begin(),v.end());
	n=SZ(v);
	if(n==0){cout<<ans<<"\n";return 0;}
	while(SZ(pqa))pqa.pop();
	while(SZ(pqb))pqb.pop();
	sum=0;
	REP(i,n){
		add(v[i].X-v[i].Y);
		add(v[i].Y);
		//cout<<sum<<" "<<pqb.top()<<" "<<SZ(pqa)-SZ(pqb)<<"\n";
		pre[i]=sum;
	}
	while(SZ(pqa))pqa.pop();
	while(SZ(pqb))pqb.pop();
	sum=0;
	for(int i=n-1;i>=0;i--){
		add(v[i].X-v[i].Y);
		add(v[i].Y);
		suf[i]=sum;
	}
	//cout<<pre[n-1]<<"\n";
	ll tans=ans+pre[n-1];
	if(k==2){
		for(int i=0;i+1<n;i++)tans=min(tans,ans+pre[i]+suf[i+1]);
	}
	cout<<tans<<"\n";
	return 0;
}
/*
1 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	2 ms	492 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	2 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	56 ms	7268 KB	Output is correct
13	Correct	108 ms	8804 KB	Output is correct
14	Correct	85 ms	7192 KB	Output is correct
15	Correct	61 ms	5352 KB	Output is correct
16	Correct	56 ms	8036 KB	Output is correct
17	Correct	73 ms	8804 KB	Output is correct
18	Correct	87 ms	8420 KB	Output is correct
19	Correct	80 ms	8804 KB	Output is correct
20	Correct	55 ms	8292 KB	Output is correct
21	Correct	80 ms	8548 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 KB	Output is correct
23	Correct	1 ms	492 KB	Output is correct
24	Correct	1 ms	492 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	2 ms	492 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	2 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 KB	Output is correct
23	Correct	1 ms	492 KB	Output is correct
24	Correct	2 ms	492 KB	Output is correct
25	Correct	46 ms	7268 KB	Output is correct
26	Correct	74 ms	7396 KB	Output is correct
27	Correct	97 ms	8164 KB	Output is correct
28	Correct	101 ms	8804 KB	Output is correct
29	Correct	117 ms	8952 KB	Output is correct
30	Correct	53 ms	4456 KB	Output is correct
31	Correct	57 ms	8164 KB	Output is correct
32	Correct	74 ms	8804 KB	Output is correct
33	Correct	84 ms	8420 KB	Output is correct
34	Correct	83 ms	8828 KB	Output is correct
35	Correct	56 ms	8292 KB	Output is correct
36	Correct	79 ms	8548 KB	Output is correct
37	Correct	41 ms	7300 KB	Output is correct

답안 #366143

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 14.0 / 14.0

Subtask #3 9.0 / 9.0

Subtask #4 32.0 / 32.0

Subtask #5 37.0 / 37.0

Subtask #1
8.0 / 8.0

Subtask #2
14.0 / 14.0

Subtask #3
9.0 / 9.0

Subtask #4
32.0 / 32.0

Subtask #5
37.0 / 37.0