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답안 #337448

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
337448 2020-12-20T20:00:13 Z YJU Bulldozer (JOI17_bulldozer) C++14
80 / 100
 1908 ms 66648 KB 
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector,ofast")
using namespace std;
typedef long long ll;
typedef __float128 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-16;
#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(1.0*(y[nda]-y[ndb])/sqrt(1.0*SQ(y[nda]-y[ndb])+1.0*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<<1),l,mid,to);
	else upd((id<<1)|1,mid,r,to);
	sum[id]=sum[(id<<1)]+sum[(id<<1)|1];
	lma[id]=max(lma[(id<<1)],lma[(id<<1)|1]+sum[(id<<1)]);
	rma[id]=max(rma[(id<<1)]+sum[(id<<1)|1],rma[(id<<1)|1]);
	ma[id]=max(max(ma[(id<<1)],ma[(id<<1)|1]),lma[(id<<1)|1]+rma[(id<<1)]);
}
 
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)>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 4 ms 748 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 4 ms 748 KB Output is correct
4 Correct 4 ms 748 KB Output is correct
5 Correct 4 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct
7 Correct 5 ms 748 KB Output is correct
8 Correct 4 ms 748 KB Output is correct
9 Correct 4 ms 748 KB Output is correct
10 Correct 4 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 492 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 5 ms 748 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 4 ms 748 KB Output is correct
4 Correct 4 ms 748 KB Output is correct
5 Correct 4 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct
7 Correct 4 ms 748 KB Output is correct
8 Correct 4 ms 748 KB Output is correct
9 Correct 4 ms 748 KB Output is correct
10 Correct 4 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 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 1 ms 384 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 4 ms 748 KB Output is correct
22 Correct 4 ms 748 KB Output is correct
23 Correct 4 ms 748 KB Output is correct
24 Correct 4 ms 748 KB Output is correct
25 Correct 4 ms 748 KB Output is correct
26 Correct 4 ms 748 KB Output is correct
27 Correct 5 ms 876 KB Output is correct
28 Correct 4 ms 748 KB Output is correct
29 Correct 4 ms 748 KB Output is correct
30 Correct 4 ms 748 KB Output is correct
31 Correct 4 ms 748 KB Output is correct
32 Correct 4 ms 748 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 748 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 4 ms 748 KB Output is correct
4 Correct 4 ms 748 KB Output is correct
5 Correct 4 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct
7 Correct 4 ms 748 KB Output is correct
8 Correct 4 ms 748 KB Output is correct
9 Correct 4 ms 748 KB Output is correct
10 Correct 4 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 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 1 ms 384 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 4 ms 748 KB Output is correct
22 Correct 4 ms 748 KB Output is correct
23 Correct 4 ms 748 KB Output is correct
24 Correct 4 ms 748 KB Output is correct
25 Correct 4 ms 748 KB Output is correct
26 Correct 4 ms 748 KB Output is correct
27 Correct 5 ms 876 KB Output is correct
28 Correct 4 ms 748 KB Output is correct
29 Correct 4 ms 748 KB Output is correct
30 Correct 4 ms 748 KB Output is correct
31 Correct 4 ms 748 KB Output is correct
32 Correct 4 ms 748 KB Output is correct
33 Correct 1854 ms 66468 KB Output is correct
34 Correct 1829 ms 66508 KB Output is correct
35 Correct 1870 ms 66340 KB Output is correct
36 Correct 1847 ms 66512 KB Output is correct
37 Correct 1844 ms 66648 KB Output is correct
38 Correct 1845 ms 66488 KB Output is correct
39 Correct 1843 ms 66340 KB Output is correct
40 Correct 1866 ms 66340 KB Output is correct
41 Correct 1844 ms 66468 KB Output is correct
42 Correct 1830 ms 66596 KB Output is correct
43 Correct 1852 ms 66476 KB Output is correct
44 Correct 1820 ms 66376 KB Output is correct
45 Correct 1823 ms 66468 KB Output is correct
46 Correct 1861 ms 66468 KB Output is correct
47 Correct 1806 ms 66448 KB Output is correct
48 Correct 1845 ms 66468 KB Output is correct
49 Correct 1845 ms 66340 KB Output is correct
50 Correct 1821 ms 66468 KB Output is correct
51 Correct 1869 ms 66468 KB Output is correct
52 Correct 1821 ms 66340 KB Output is correct
53 Correct 1842 ms 66340 KB Output is correct
54 Correct 1832 ms 66504 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 748 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 4 ms 748 KB Output is correct
4 Correct 4 ms 748 KB Output is correct
5 Correct 4 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct
7 Correct 4 ms 748 KB Output is correct
8 Correct 4 ms 748 KB Output is correct
9 Correct 4 ms 748 KB Output is correct
10 Correct 4 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 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 1 ms 384 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 4 ms 748 KB Output is correct
22 Correct 4 ms 748 KB Output is correct
23 Correct 4 ms 748 KB Output is correct
24 Correct 4 ms 748 KB Output is correct
25 Correct 4 ms 748 KB Output is correct
26 Correct 4 ms 748 KB Output is correct
27 Correct 5 ms 876 KB Output is correct
28 Correct 4 ms 748 KB Output is correct
29 Correct 4 ms 748 KB Output is correct
30 Correct 4 ms 748 KB Output is correct
31 Correct 4 ms 748 KB Output is correct
32 Correct 4 ms 748 KB Output is correct
33 Correct 1854 ms 66468 KB Output is correct
34 Correct 1829 ms 66508 KB Output is correct
35 Correct 1870 ms 66340 KB Output is correct
36 Correct 1847 ms 66512 KB Output is correct
37 Correct 1844 ms 66648 KB Output is correct
38 Correct 1845 ms 66488 KB Output is correct
39 Correct 1843 ms 66340 KB Output is correct
40 Correct 1866 ms 66340 KB Output is correct
41 Correct 1844 ms 66468 KB Output is correct
42 Correct 1830 ms 66596 KB Output is correct
43 Correct 1852 ms 66476 KB Output is correct
44 Correct 1820 ms 66376 KB Output is correct
45 Correct 1823 ms 66468 KB Output is correct
46 Correct 1861 ms 66468 KB Output is correct
47 Correct 1806 ms 66448 KB Output is correct
48 Correct 1845 ms 66468 KB Output is correct
49 Correct 1845 ms 66340 KB Output is correct
50 Correct 1821 ms 66468 KB Output is correct
51 Correct 1869 ms 66468 KB Output is correct
52 Correct 1821 ms 66340 KB Output is correct
53 Correct 1842 ms 66340 KB Output is correct
54 Correct 1832 ms 66504 KB Output is correct
55 Correct 1835 ms 66340 KB Output is correct
56 Correct 1809 ms 66340 KB Output is correct
57 Correct 1861 ms 66476 KB Output is correct
58 Correct 1901 ms 66340 KB Output is correct
59 Correct 1862 ms 66440 KB Output is correct
60 Correct 1848 ms 66492 KB Output is correct
61 Correct 1839 ms 66484 KB Output is correct
62 Correct 1842 ms 66340 KB Output is correct
63 Correct 1870 ms 66468 KB Output is correct
64 Correct 1854 ms 66572 KB Output is correct
65 Correct 1864 ms 66340 KB Output is correct
66 Correct 1846 ms 66340 KB Output is correct
67 Correct 1859 ms 66340 KB Output is correct
68 Correct 1864 ms 66468 KB Output is correct
69 Correct 1866 ms 66340 KB Output is correct
70 Correct 1824 ms 66340 KB Output is correct
71 Correct 1839 ms 66452 KB Output is correct
72 Correct 1879 ms 66468 KB Output is correct
73 Correct 1823 ms 66432 KB Output is correct
74 Correct 1845 ms 66340 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 748 KB Output is correct
2 Correct 4 ms 748 KB Output is correct
3 Correct 4 ms 748 KB Output is correct
4 Correct 4 ms 748 KB Output is correct
5 Correct 4 ms 748 KB Output is correct
6 Correct 4 ms 748 KB Output is correct
7 Correct 5 ms 748 KB Output is correct
8 Correct 4 ms 748 KB Output is correct
9 Correct 4 ms 748 KB Output is correct
10 Correct 4 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 492 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 5 ms 748 KB Output is correct
17 Correct 4 ms 748 KB Output is correct
18 Correct 4 ms 748 KB Output is correct
19 Correct 4 ms 748 KB Output is correct
20 Correct 4 ms 748 KB Output is correct
21 Correct 4 ms 748 KB Output is correct
22 Correct 4 ms 748 KB Output is correct
23 Correct 4 ms 748 KB Output is correct
24 Correct 4 ms 748 KB Output is correct
25 Correct 4 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 1 ms 364 KB Output is correct
29 Correct 0 ms 364 KB Output is correct
30 Correct 0 ms 364 KB Output is correct
31 Correct 1 ms 384 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 4 ms 748 KB Output is correct
37 Correct 4 ms 748 KB Output is correct
38 Correct 4 ms 748 KB Output is correct
39 Correct 4 ms 748 KB Output is correct
40 Correct 4 ms 748 KB Output is correct
41 Correct 4 ms 748 KB Output is correct
42 Correct 5 ms 876 KB Output is correct
43 Correct 4 ms 748 KB Output is correct
44 Correct 4 ms 748 KB Output is correct
45 Correct 4 ms 748 KB Output is correct
46 Correct 4 ms 748 KB Output is correct
47 Correct 4 ms 748 KB Output is correct
48 Correct 1854 ms 66468 KB Output is correct
49 Correct 1829 ms 66508 KB Output is correct
50 Correct 1870 ms 66340 KB Output is correct
51 Correct 1847 ms 66512 KB Output is correct
52 Correct 1844 ms 66648 KB Output is correct
53 Correct 1845 ms 66488 KB Output is correct
54 Correct 1843 ms 66340 KB Output is correct
55 Correct 1866 ms 66340 KB Output is correct
56 Correct 1844 ms 66468 KB Output is correct
57 Correct 1830 ms 66596 KB Output is correct
58 Correct 1852 ms 66476 KB Output is correct
59 Correct 1820 ms 66376 KB Output is correct
60 Correct 1823 ms 66468 KB Output is correct
61 Correct 1861 ms 66468 KB Output is correct
62 Correct 1806 ms 66448 KB Output is correct
63 Correct 1845 ms 66468 KB Output is correct
64 Correct 1845 ms 66340 KB Output is correct
65 Correct 1821 ms 66468 KB Output is correct
66 Correct 1869 ms 66468 KB Output is correct
67 Correct 1821 ms 66340 KB Output is correct
68 Correct 1842 ms 66340 KB Output is correct
69 Correct 1832 ms 66504 KB Output is correct
70 Correct 1835 ms 66340 KB Output is correct
71 Correct 1809 ms 66340 KB Output is correct
72 Correct 1861 ms 66476 KB Output is correct
73 Correct 1901 ms 66340 KB Output is correct
74 Correct 1862 ms 66440 KB Output is correct
75 Correct 1848 ms 66492 KB Output is correct
76 Correct 1839 ms 66484 KB Output is correct
77 Correct 1842 ms 66340 KB Output is correct
78 Correct 1870 ms 66468 KB Output is correct
79 Correct 1854 ms 66572 KB Output is correct
80 Correct 1864 ms 66340 KB Output is correct
81 Correct 1846 ms 66340 KB Output is correct
82 Correct 1859 ms 66340 KB Output is correct
83 Correct 1864 ms 66468 KB Output is correct
84 Correct 1866 ms 66340 KB Output is correct
85 Correct 1824 ms 66340 KB Output is correct
86 Correct 1839 ms 66452 KB Output is correct
87 Correct 1879 ms 66468 KB Output is correct
88 Correct 1823 ms 66432 KB Output is correct
89 Correct 1845 ms 66340 KB Output is correct
90 Correct 1882 ms 66432 KB Output is correct
91 Correct 1829 ms 66340 KB Output is correct
92 Correct 1837 ms 66340 KB Output is correct
93 Correct 1841 ms 66340 KB Output is correct
94 Correct 1838 ms 66392 KB Output is correct
95 Correct 1828 ms 66340 KB Output is correct
96 Correct 1823 ms 66340 KB Output is correct
97 Correct 1865 ms 66340 KB Output is correct
98 Correct 1838 ms 66340 KB Output is correct
99 Correct 1817 ms 66340 KB Output is correct
100 Incorrect 1908 ms 66340 KB Output isn't correct
101 Halted 0 ms 0 KB -