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답안 #337441

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
337441 2020-12-20T19:14:15 Z YJU Bulldozer (JOI17_bulldozer) C++14
80 / 100
 1008 ms 50144 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=2e3+5;
const ld pi=acos(-1);
const ll INF=(1LL<<30);
const ld zero=1e-18;
#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()

ll n,x[N],y[N],c[N],pos[N],ans,ma[4*N],lma[4*N],rma[4*N],sum[4*N];
ll ymi=INF,yma=-INF;
vector<ll> lis;
vector<pair<ld,pll> > event;

void mod(ll nda,ll ndb){
	ld cel=asin((y[nda]-y[ndb])/sqrt(SQ(y[nda]-y[ndb])+SQ(x[nda]-x[ndb])));
	cel=(cel+pi/2>2*pi?cel+pi/2-2*pi:cel+pi/2);
	//cout<<nda<<" "<<ndb<<" "<<cel/pi<<"\n";
	event.pb(mp(cel,mp(nda,ndb)));
	//cel=(cel+pi>2*pi?cel-pi:cel+pi);
	//event.pb(mp(cel,mp(nda,ndb)));
}

void upd(ll id,ll l,ll r,ll to){
	if(l==r-1){ma[id]=lma[id]=rma[id]=max(0LL,c[lis[l]]);sum[id]=c[lis[l]];return ;}
	ll mid=(l+r)>>1;
	if(to<mid)upd(id*2,l,mid,to);
	else upd(id*2+1,mid,r,to);
	sum[id]=sum[id*2]+sum[id*2+1];
	lma[id]=max(lma[id*2],lma[id*2+1]+sum[id*2]);
	rma[id]=max(rma[id*2]+sum[id*2+1],rma[id*2+1]);
	ma[id]=max(max(ma[id*2],ma[id*2+1]),lma[id*2+1]+rma[id*2]);
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n;
	REP(i,n){
		cin>>x[i]>>y[i]>>c[i];
		ymi=min(ymi,y[i]);
		yma=max(yma,y[i]);
		lis.pb(i);
	}
	sort(lis.begin(),lis.end(),[](ll A,ll B){
		if(x[A]!=x[B])return (x[A]<x[B]);
		return (y[A]>y[B]);
	});
	REP(i,n)pos[lis[i]]=i;
	REP(i,n)upd(1,0,n,i);
	ans=ma[1];
	//if(ymi==yma){cout<<ans<<"\n";return 0;}
	REP(i,n){
		for(int j=i+1;j<n;j++){
			mod(lis[i],lis[j]);
		}
	}
	
	sort(event.begin(),event.end());
	
	//for(auto i:event)cout<<i.Y.X<<" "<<i.Y.Y<<"\n";
	
	REP(i,SZ(event)){
		if(i&&abs(event[i].X-event[i-1].X)>zero)ans=max(ans,ma[1]);
		ll nx=event[i].Y.X,ny=event[i].Y.Y;
		swap(lis[pos[nx]],lis[pos[ny]]);
		upd(1,0,n,pos[nx]);
		upd(1,0,n,pos[ny]);
		swap(pos[nx],pos[ny]);
	}
	cout<<ans<<"\n";
	return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 684 KB Output is correct
3 Correct 2 ms 684 KB Output is correct
4 Correct 2 ms 684 KB Output is correct
5 Correct 2 ms 704 KB Output is correct
6 Correct 2 ms 684 KB Output is correct
7 Correct 2 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 2 ms 684 KB Output is correct
10 Correct 2 ms 684 KB Output is correct
11 Correct 1 ms 384 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 1 ms 364 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 684 KB Output is correct
3 Correct 2 ms 704 KB Output is correct
4 Correct 2 ms 684 KB Output is correct
5 Correct 2 ms 684 KB Output is correct
6 Correct 2 ms 684 KB Output is correct
7 Correct 2 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 2 ms 684 KB Output is correct
10 Correct 2 ms 684 KB Output is correct
11 Correct 0 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 384 KB Output is correct
15 Correct 1 ms 364 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 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 2 ms 684 KB Output is correct
22 Correct 2 ms 684 KB Output is correct
23 Correct 2 ms 704 KB Output is correct
24 Correct 2 ms 684 KB Output is correct
25 Correct 2 ms 684 KB Output is correct
26 Correct 2 ms 684 KB Output is correct
27 Correct 2 ms 684 KB Output is correct
28 Correct 2 ms 684 KB Output is correct
29 Correct 2 ms 684 KB Output is correct
30 Correct 2 ms 684 KB Output is correct
31 Correct 2 ms 684 KB Output is correct
32 Correct 2 ms 684 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 684 KB Output is correct
3 Correct 2 ms 704 KB Output is correct
4 Correct 2 ms 684 KB Output is correct
5 Correct 2 ms 684 KB Output is correct
6 Correct 2 ms 684 KB Output is correct
7 Correct 2 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 2 ms 684 KB Output is correct
10 Correct 2 ms 684 KB Output is correct
11 Correct 0 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 384 KB Output is correct
15 Correct 1 ms 364 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 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 2 ms 684 KB Output is correct
22 Correct 2 ms 684 KB Output is correct
23 Correct 2 ms 704 KB Output is correct
24 Correct 2 ms 684 KB Output is correct
25 Correct 2 ms 684 KB Output is correct
26 Correct 2 ms 684 KB Output is correct
27 Correct 2 ms 684 KB Output is correct
28 Correct 2 ms 684 KB Output is correct
29 Correct 2 ms 684 KB Output is correct
30 Correct 2 ms 684 KB Output is correct
31 Correct 2 ms 684 KB Output is correct
32 Correct 2 ms 684 KB Output is correct
33 Correct 986 ms 49968 KB Output is correct
34 Correct 979 ms 49968 KB Output is correct
35 Correct 992 ms 49968 KB Output is correct
36 Correct 987 ms 50096 KB Output is correct
37 Correct 1008 ms 49968 KB Output is correct
38 Correct 988 ms 49988 KB Output is correct
39 Correct 982 ms 50096 KB Output is correct
40 Correct 985 ms 49968 KB Output is correct
41 Correct 976 ms 49968 KB Output is correct
42 Correct 981 ms 49968 KB Output is correct
43 Correct 976 ms 49968 KB Output is correct
44 Correct 959 ms 49968 KB Output is correct
45 Correct 962 ms 49988 KB Output is correct
46 Correct 980 ms 49968 KB Output is correct
47 Correct 964 ms 49968 KB Output is correct
48 Correct 970 ms 49992 KB Output is correct
49 Correct 966 ms 50096 KB Output is correct
50 Correct 962 ms 49968 KB Output is correct
51 Correct 971 ms 49968 KB Output is correct
52 Correct 965 ms 49968 KB Output is correct
53 Correct 959 ms 49988 KB Output is correct
54 Correct 979 ms 49968 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 684 KB Output is correct
3 Correct 2 ms 704 KB Output is correct
4 Correct 2 ms 684 KB Output is correct
5 Correct 2 ms 684 KB Output is correct
6 Correct 2 ms 684 KB Output is correct
7 Correct 2 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 2 ms 684 KB Output is correct
10 Correct 2 ms 684 KB Output is correct
11 Correct 0 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 384 KB Output is correct
15 Correct 1 ms 364 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 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 2 ms 684 KB Output is correct
22 Correct 2 ms 684 KB Output is correct
23 Correct 2 ms 704 KB Output is correct
24 Correct 2 ms 684 KB Output is correct
25 Correct 2 ms 684 KB Output is correct
26 Correct 2 ms 684 KB Output is correct
27 Correct 2 ms 684 KB Output is correct
28 Correct 2 ms 684 KB Output is correct
29 Correct 2 ms 684 KB Output is correct
30 Correct 2 ms 684 KB Output is correct
31 Correct 2 ms 684 KB Output is correct
32 Correct 2 ms 684 KB Output is correct
33 Correct 986 ms 49968 KB Output is correct
34 Correct 979 ms 49968 KB Output is correct
35 Correct 992 ms 49968 KB Output is correct
36 Correct 987 ms 50096 KB Output is correct
37 Correct 1008 ms 49968 KB Output is correct
38 Correct 988 ms 49988 KB Output is correct
39 Correct 982 ms 50096 KB Output is correct
40 Correct 985 ms 49968 KB Output is correct
41 Correct 976 ms 49968 KB Output is correct
42 Correct 981 ms 49968 KB Output is correct
43 Correct 976 ms 49968 KB Output is correct
44 Correct 959 ms 49968 KB Output is correct
45 Correct 962 ms 49988 KB Output is correct
46 Correct 980 ms 49968 KB Output is correct
47 Correct 964 ms 49968 KB Output is correct
48 Correct 970 ms 49992 KB Output is correct
49 Correct 966 ms 50096 KB Output is correct
50 Correct 962 ms 49968 KB Output is correct
51 Correct 971 ms 49968 KB Output is correct
52 Correct 965 ms 49968 KB Output is correct
53 Correct 959 ms 49988 KB Output is correct
54 Correct 979 ms 49968 KB Output is correct
55 Correct 986 ms 49968 KB Output is correct
56 Correct 991 ms 49968 KB Output is correct
57 Correct 993 ms 50120 KB Output is correct
58 Correct 985 ms 49968 KB Output is correct
59 Correct 989 ms 49968 KB Output is correct
60 Correct 979 ms 50084 KB Output is correct
61 Correct 987 ms 49968 KB Output is correct
62 Correct 996 ms 50052 KB Output is correct
63 Correct 1000 ms 49968 KB Output is correct
64 Correct 986 ms 50096 KB Output is correct
65 Correct 977 ms 49968 KB Output is correct
66 Correct 991 ms 49968 KB Output is correct
67 Correct 987 ms 50096 KB Output is correct
68 Correct 994 ms 49968 KB Output is correct
69 Correct 987 ms 50024 KB Output is correct
70 Correct 978 ms 49968 KB Output is correct
71 Correct 967 ms 49968 KB Output is correct
72 Correct 984 ms 49936 KB Output is correct
73 Correct 982 ms 49968 KB Output is correct
74 Correct 993 ms 50144 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 684 KB Output is correct
3 Correct 2 ms 684 KB Output is correct
4 Correct 2 ms 684 KB Output is correct
5 Correct 2 ms 704 KB Output is correct
6 Correct 2 ms 684 KB Output is correct
7 Correct 2 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 2 ms 684 KB Output is correct
10 Correct 2 ms 684 KB Output is correct
11 Correct 1 ms 384 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 1 ms 364 KB Output is correct
16 Correct 2 ms 684 KB Output is correct
17 Correct 2 ms 684 KB Output is correct
18 Correct 2 ms 704 KB Output is correct
19 Correct 2 ms 684 KB Output is correct
20 Correct 2 ms 684 KB Output is correct
21 Correct 2 ms 684 KB Output is correct
22 Correct 2 ms 684 KB Output is correct
23 Correct 2 ms 684 KB Output is correct
24 Correct 2 ms 684 KB Output is correct
25 Correct 2 ms 684 KB Output is correct
26 Correct 0 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 1 ms 364 KB Output is correct
35 Correct 1 ms 364 KB Output is correct
36 Correct 2 ms 684 KB Output is correct
37 Correct 2 ms 684 KB Output is correct
38 Correct 2 ms 704 KB Output is correct
39 Correct 2 ms 684 KB Output is correct
40 Correct 2 ms 684 KB Output is correct
41 Correct 2 ms 684 KB Output is correct
42 Correct 2 ms 684 KB Output is correct
43 Correct 2 ms 684 KB Output is correct
44 Correct 2 ms 684 KB Output is correct
45 Correct 2 ms 684 KB Output is correct
46 Correct 2 ms 684 KB Output is correct
47 Correct 2 ms 684 KB Output is correct
48 Correct 986 ms 49968 KB Output is correct
49 Correct 979 ms 49968 KB Output is correct
50 Correct 992 ms 49968 KB Output is correct
51 Correct 987 ms 50096 KB Output is correct
52 Correct 1008 ms 49968 KB Output is correct
53 Correct 988 ms 49988 KB Output is correct
54 Correct 982 ms 50096 KB Output is correct
55 Correct 985 ms 49968 KB Output is correct
56 Correct 976 ms 49968 KB Output is correct
57 Correct 981 ms 49968 KB Output is correct
58 Correct 976 ms 49968 KB Output is correct
59 Correct 959 ms 49968 KB Output is correct
60 Correct 962 ms 49988 KB Output is correct
61 Correct 980 ms 49968 KB Output is correct
62 Correct 964 ms 49968 KB Output is correct
63 Correct 970 ms 49992 KB Output is correct
64 Correct 966 ms 50096 KB Output is correct
65 Correct 962 ms 49968 KB Output is correct
66 Correct 971 ms 49968 KB Output is correct
67 Correct 965 ms 49968 KB Output is correct
68 Correct 959 ms 49988 KB Output is correct
69 Correct 979 ms 49968 KB Output is correct
70 Correct 986 ms 49968 KB Output is correct
71 Correct 991 ms 49968 KB Output is correct
72 Correct 993 ms 50120 KB Output is correct
73 Correct 985 ms 49968 KB Output is correct
74 Correct 989 ms 49968 KB Output is correct
75 Correct 979 ms 50084 KB Output is correct
76 Correct 987 ms 49968 KB Output is correct
77 Correct 996 ms 50052 KB Output is correct
78 Correct 1000 ms 49968 KB Output is correct
79 Correct 986 ms 50096 KB Output is correct
80 Correct 977 ms 49968 KB Output is correct
81 Correct 991 ms 49968 KB Output is correct
82 Correct 987 ms 50096 KB Output is correct
83 Correct 994 ms 49968 KB Output is correct
84 Correct 987 ms 50024 KB Output is correct
85 Correct 978 ms 49968 KB Output is correct
86 Correct 967 ms 49968 KB Output is correct
87 Correct 984 ms 49936 KB Output is correct
88 Correct 982 ms 49968 KB Output is correct
89 Correct 993 ms 50144 KB Output is correct
90 Correct 988 ms 49968 KB Output is correct
91 Correct 986 ms 49968 KB Output is correct
92 Correct 982 ms 49968 KB Output is correct
93 Correct 978 ms 49968 KB Output is correct
94 Correct 978 ms 50096 KB Output is correct
95 Correct 977 ms 49968 KB Output is correct
96 Correct 979 ms 49968 KB Output is correct
97 Correct 994 ms 49968 KB Output is correct
98 Correct 983 ms 49968 KB Output is correct
99 Correct 983 ms 49968 KB Output is correct
100 Incorrect 866 ms 49968 KB Output isn't correct
101 Halted 0 ms 0 KB -