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답안 #337443

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
337443 2020-12-20T19:26:32 Z YJU Bulldozer (JOI17_bulldozer) C++14
80 / 100
 1157 ms 66632 KB 
#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=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];
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);
	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];
		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];
	REP(i,n){
		for(int j=i+1;j<n;j++){
			mod(lis[i],lis[j]);
		}
	}
	
	sort(event.begin(),event.end());
	
	REP(i,SZ(event)){
		if(i&&(event[i].X-event[i-1].X)/pi>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;
}

Compilation message

bulldozer.cpp:2:61: warning: bad option '-fofast' to pragma 'optimize' [-Wpragmas]
    2 | #pragma GCC optimize("unroll-loops,no-stack-protector,ofast")
      |                                                             ^
bulldozer.cpp:28:23: warning: bad option '-fofast' to attribute 'optimize' [-Wattributes]
   28 | void mod(ll nda,ll ndb){
      |                       ^
bulldozer.cpp:34:31: warning: bad option '-fofast' to attribute 'optimize' [-Wattributes]
   34 | void upd(ll id,ll l,ll r,ll to){
      |                               ^
bulldozer.cpp:45:10: warning: bad option '-fofast' to attribute 'optimize' [-Wattributes]
   45 | int main(){
      |          ^
bulldozer.cpp: In function 'int main()':
bulldozer.cpp:52:41: warning: bad option '-fofast' to attribute 'optimize' [-Wattributes]
   52 |  sort(lis.begin(),lis.end(),[](ll A,ll B){
      |                                         ^

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 2 ms 748 KB Output is correct
4 Correct 2 ms 748 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 2 ms 768 KB Output is correct
8 Correct 2 ms 748 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 2 ms 748 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 0 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 3 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 2 ms 748 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 3 ms 748 KB Output is correct
8 Correct 3 ms 768 KB Output is correct
9 Correct 3 ms 760 KB Output is correct
10 Correct 2 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 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 0 ms 364 KB Output is correct
17 Correct 0 ms 364 KB Output is correct
18 Correct 0 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 748 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 2 ms 748 KB Output is correct
27 Correct 2 ms 748 KB Output is correct
28 Correct 3 ms 748 KB Output is correct
29 Correct 2 ms 748 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 2 ms 748 KB Output is correct
32 Correct 2 ms 748 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 2 ms 748 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 3 ms 748 KB Output is correct
8 Correct 3 ms 768 KB Output is correct
9 Correct 3 ms 760 KB Output is correct
10 Correct 2 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 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 0 ms 364 KB Output is correct
17 Correct 0 ms 364 KB Output is correct
18 Correct 0 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 748 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 2 ms 748 KB Output is correct
27 Correct 2 ms 748 KB Output is correct
28 Correct 3 ms 748 KB Output is correct
29 Correct 2 ms 748 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 2 ms 748 KB Output is correct
32 Correct 2 ms 748 KB Output is correct
33 Correct 1142 ms 66340 KB Output is correct
34 Correct 1129 ms 66360 KB Output is correct
35 Correct 1146 ms 66340 KB Output is correct
36 Correct 1133 ms 66340 KB Output is correct
37 Correct 1134 ms 66340 KB Output is correct
38 Correct 1141 ms 66340 KB Output is correct
39 Correct 1131 ms 66492 KB Output is correct
40 Correct 1135 ms 66340 KB Output is correct
41 Correct 1125 ms 66484 KB Output is correct
42 Correct 1131 ms 66340 KB Output is correct
43 Correct 1124 ms 66340 KB Output is correct
44 Correct 1110 ms 66340 KB Output is correct
45 Correct 1111 ms 66340 KB Output is correct
46 Correct 1118 ms 66340 KB Output is correct
47 Correct 1108 ms 66340 KB Output is correct
48 Correct 1109 ms 66340 KB Output is correct
49 Correct 1114 ms 66340 KB Output is correct
50 Correct 1117 ms 66340 KB Output is correct
51 Correct 1127 ms 66348 KB Output is correct
52 Correct 1108 ms 66340 KB Output is correct
53 Correct 1110 ms 66500 KB Output is correct
54 Correct 1109 ms 66512 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 3 ms 748 KB Output is correct
4 Correct 2 ms 748 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 3 ms 748 KB Output is correct
8 Correct 3 ms 768 KB Output is correct
9 Correct 3 ms 760 KB Output is correct
10 Correct 2 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 0 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 0 ms 364 KB Output is correct
17 Correct 0 ms 364 KB Output is correct
18 Correct 0 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 748 KB Output is correct
22 Correct 2 ms 748 KB Output is correct
23 Correct 2 ms 748 KB Output is correct
24 Correct 3 ms 768 KB Output is correct
25 Correct 3 ms 876 KB Output is correct
26 Correct 2 ms 748 KB Output is correct
27 Correct 2 ms 748 KB Output is correct
28 Correct 3 ms 748 KB Output is correct
29 Correct 2 ms 748 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 2 ms 748 KB Output is correct
32 Correct 2 ms 748 KB Output is correct
33 Correct 1142 ms 66340 KB Output is correct
34 Correct 1129 ms 66360 KB Output is correct
35 Correct 1146 ms 66340 KB Output is correct
36 Correct 1133 ms 66340 KB Output is correct
37 Correct 1134 ms 66340 KB Output is correct
38 Correct 1141 ms 66340 KB Output is correct
39 Correct 1131 ms 66492 KB Output is correct
40 Correct 1135 ms 66340 KB Output is correct
41 Correct 1125 ms 66484 KB Output is correct
42 Correct 1131 ms 66340 KB Output is correct
43 Correct 1124 ms 66340 KB Output is correct
44 Correct 1110 ms 66340 KB Output is correct
45 Correct 1111 ms 66340 KB Output is correct
46 Correct 1118 ms 66340 KB Output is correct
47 Correct 1108 ms 66340 KB Output is correct
48 Correct 1109 ms 66340 KB Output is correct
49 Correct 1114 ms 66340 KB Output is correct
50 Correct 1117 ms 66340 KB Output is correct
51 Correct 1127 ms 66348 KB Output is correct
52 Correct 1108 ms 66340 KB Output is correct
53 Correct 1110 ms 66500 KB Output is correct
54 Correct 1109 ms 66512 KB Output is correct
55 Correct 1122 ms 66340 KB Output is correct
56 Correct 1120 ms 66340 KB Output is correct
57 Correct 1138 ms 66340 KB Output is correct
58 Correct 1140 ms 66340 KB Output is correct
59 Correct 1125 ms 66340 KB Output is correct
60 Correct 1134 ms 66468 KB Output is correct
61 Correct 1136 ms 66632 KB Output is correct
62 Correct 1149 ms 66340 KB Output is correct
63 Correct 1152 ms 66340 KB Output is correct
64 Correct 1127 ms 66340 KB Output is correct
65 Correct 1133 ms 66340 KB Output is correct
66 Correct 1132 ms 66556 KB Output is correct
67 Correct 1128 ms 66516 KB Output is correct
68 Correct 1149 ms 66340 KB Output is correct
69 Correct 1129 ms 66340 KB Output is correct
70 Correct 1124 ms 66340 KB Output is correct
71 Correct 1117 ms 66340 KB Output is correct
72 Correct 1157 ms 66360 KB Output is correct
73 Correct 1123 ms 66340 KB Output is correct
74 Correct 1128 ms 66468 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 748 KB Output is correct
2 Correct 2 ms 748 KB Output is correct
3 Correct 2 ms 748 KB Output is correct
4 Correct 2 ms 748 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 2 ms 768 KB Output is correct
8 Correct 2 ms 748 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 2 ms 748 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 0 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 3 ms 748 KB Output is correct
17 Correct 2 ms 748 KB Output is correct
18 Correct 3 ms 748 KB Output is correct
19 Correct 2 ms 748 KB Output is correct
20 Correct 2 ms 748 KB Output is correct
21 Correct 2 ms 748 KB Output is correct
22 Correct 3 ms 748 KB Output is correct
23 Correct 3 ms 768 KB Output is correct
24 Correct 3 ms 760 KB Output is correct
25 Correct 2 ms 748 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 0 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 0 ms 364 KB Output is correct
32 Correct 0 ms 364 KB Output is correct
33 Correct 0 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 748 KB Output is correct
37 Correct 2 ms 748 KB Output is correct
38 Correct 2 ms 748 KB Output is correct
39 Correct 3 ms 768 KB Output is correct
40 Correct 3 ms 876 KB Output is correct
41 Correct 2 ms 748 KB Output is correct
42 Correct 2 ms 748 KB Output is correct
43 Correct 3 ms 748 KB Output is correct
44 Correct 2 ms 748 KB Output is correct
45 Correct 2 ms 748 KB Output is correct
46 Correct 2 ms 748 KB Output is correct
47 Correct 2 ms 748 KB Output is correct
48 Correct 1142 ms 66340 KB Output is correct
49 Correct 1129 ms 66360 KB Output is correct
50 Correct 1146 ms 66340 KB Output is correct
51 Correct 1133 ms 66340 KB Output is correct
52 Correct 1134 ms 66340 KB Output is correct
53 Correct 1141 ms 66340 KB Output is correct
54 Correct 1131 ms 66492 KB Output is correct
55 Correct 1135 ms 66340 KB Output is correct
56 Correct 1125 ms 66484 KB Output is correct
57 Correct 1131 ms 66340 KB Output is correct
58 Correct 1124 ms 66340 KB Output is correct
59 Correct 1110 ms 66340 KB Output is correct
60 Correct 1111 ms 66340 KB Output is correct
61 Correct 1118 ms 66340 KB Output is correct
62 Correct 1108 ms 66340 KB Output is correct
63 Correct 1109 ms 66340 KB Output is correct
64 Correct 1114 ms 66340 KB Output is correct
65 Correct 1117 ms 66340 KB Output is correct
66 Correct 1127 ms 66348 KB Output is correct
67 Correct 1108 ms 66340 KB Output is correct
68 Correct 1110 ms 66500 KB Output is correct
69 Correct 1109 ms 66512 KB Output is correct
70 Correct 1122 ms 66340 KB Output is correct
71 Correct 1120 ms 66340 KB Output is correct
72 Correct 1138 ms 66340 KB Output is correct
73 Correct 1140 ms 66340 KB Output is correct
74 Correct 1125 ms 66340 KB Output is correct
75 Correct 1134 ms 66468 KB Output is correct
76 Correct 1136 ms 66632 KB Output is correct
77 Correct 1149 ms 66340 KB Output is correct
78 Correct 1152 ms 66340 KB Output is correct
79 Correct 1127 ms 66340 KB Output is correct
80 Correct 1133 ms 66340 KB Output is correct
81 Correct 1132 ms 66556 KB Output is correct
82 Correct 1128 ms 66516 KB Output is correct
83 Correct 1149 ms 66340 KB Output is correct
84 Correct 1129 ms 66340 KB Output is correct
85 Correct 1124 ms 66340 KB Output is correct
86 Correct 1117 ms 66340 KB Output is correct
87 Correct 1157 ms 66360 KB Output is correct
88 Correct 1123 ms 66340 KB Output is correct
89 Correct 1128 ms 66468 KB Output is correct
90 Correct 1144 ms 66340 KB Output is correct
91 Correct 1150 ms 66340 KB Output is correct
92 Correct 1132 ms 66340 KB Output is correct
93 Correct 1138 ms 66340 KB Output is correct
94 Correct 1134 ms 66340 KB Output is correct
95 Correct 1133 ms 66468 KB Output is correct
96 Correct 1136 ms 66340 KB Output is correct
97 Correct 1147 ms 66340 KB Output is correct
98 Correct 1131 ms 66340 KB Output is correct
99 Correct 1132 ms 66340 KB Output is correct
100 Incorrect 988 ms 66340 KB Output isn't correct
101 Halted 0 ms 0 KB -