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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#94291#4409. 袜子Crysfly15 6956ms112104kbC++175.3kb2023-04-05 16:59:042023-04-05 16:59:05

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-04-05 16:59:05]
  • 评测
  • 测评结果:15
  • 用时:6956ms
  • 内存:112104kb
  • [2023-04-05 16:59:04]
  • 提交

answer

#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
#define int long long
using namespace std;
inline int read()
{
    char c=getchar();int x=0;bool f=0;
    for(;!isdigit(c);c=getchar())f^=!(c^45);
    for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
    if(f)x=-x;return x;
}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 200005
#define inf 0x3f3f3f3f

int n,m;

#define i128 __int128
inline i128 ABS(i128 x){return x<0?-x:x;}
struct frac{
	i128 x,y;
	frac(){}
	frac(i128 xx,i128 yy=1ll):x(xx),y(yy){
		if(y<0)x=-x,y=-y;
	}
	friend frac operator +(frac a,frac b){return frac(a.x*b.y+a.y*b.x,a.y*b.y);}
	friend frac operator -(frac a,frac b){return frac(a.x*b.y-a.y*b.x,a.y*b.y);}
	friend frac operator *(frac a,frac b){return frac(a.x*b.x,a.y*b.y);}
	friend frac operator /(frac a,frac b){return a*frac(b.y,b.x);}
	friend bool operator <(frac a,frac b){return a.x*b.y<b.x*a.y;}
	friend bool operator >(frac a,frac b){return a.x*b.y>b.x*a.y;}
	friend bool operator <=(frac a,frac b){return !(a>b);}
	friend bool operator >=(frac a,frac b){return !(a<b);}
	friend bool operator ==(frac a,frac b){return a.x*b.y==b.x*a.y;}
	friend bool operator !=(frac a,frac b){return !(a==b);}
	frac operator - () {return frac(0)-x;}
};

struct P{
	int x,y;
	P(int x=0,int y=0):x(x),y(y){}
	P&operator +=(P o){return x+=o.x,y+=o.y,*this;}
	P&operator -=(P o){return x-=o.x,y-=o.y,*this;}
	P&operator *=(int o){return x*=o,y*=o,*this;}
	P&operator /=(int o){return x/=o,y/=o,*this;}
	friend P operator +(P a,P b){return a+=b;}
	friend P operator -(P a,P b){return a-=b;}
	friend P operator *(P a,int b){return a*=b;}
	friend P operator /(P a,int b){return a/=b;}
	friend bool operator <(P a,P b){return a.x==b.x?a.y<b.y:a.x<b.x;}
	friend int operator *(P a,P b){return a.x*b.x+a.y*b.y;} // dot
	friend int operator %(P a,P b){return a.x*b.y-a.y*b.x;} // cross
};

struct point{
	int x,y,c;
	bool operator <(const point&b)const{return x<b.x||(x==b.x&&y<b.y);}
}p[maxn],a[maxn];

struct node{
	int x,y; frac k;
	node(int xx=0,int yy=0,frac kk=frac(0)){x=xx,y=yy,k=kk;}
	friend bool operator <(node a,node b){
		if(a.k!=b.k)return a.k<b.k;
		if(a.x!=b.x)return a.x<b.x;
		return a.y<b.y;
	}
}t[1000005];

struct line{
	frac k; int a,b,c,id;
	friend bool operator <(line a,line b){return a.k<b.k;}
	int F(int x,int y){return a*x+b*y+c;}
}q[500005];
int res[500005],resc[500005];

int B=1000;
int cnt,tot,pos[maxn],rev[maxn];

int l1[maxn],r1[maxn],c1[maxn],s1[maxn];
int l2[maxn],r2[maxn],c2[maxn],s2[maxn];
int lc,rc,prc;

int S(int x){return x*x;}

void upd1(int u){
	s1[u]=s1[u-1]+S(c1[u])-S(c1[u]-1);
	l1[u]=l1[u-1],r1[u]=r1[u-1];
	if(a[u].c==lc) l1[u]=c1[u];
	if(a[u].c==rc) r1[u]=c1[u];
}
void upd2(int v){
	s2[v]=s2[v+1]+S(c2[v])-S(c2[v]-1);
	l2[v]=l2[v+1],r2[v]=r2[v+1];
	if(a[v].c==lc) l2[v]=c2[v];
	if(a[v].c==rc) r2[v]=c2[v];
}

void upd(int x,int y){
//	cout<<"upd "<<pos[x]<<" "<<pos[y]<<endl;
	int u=pos[x],v=pos[y];
	assert(abs(u-v)==1); 
	if(a[u].c!=a[v].c) swap(c1[u],c1[v]),swap(c2[u],c2[v]);
	swap(a[u],a[v]);
	upd1(u);
	upd2(v);
	swap(pos[x],pos[y]);
}
void work(int x,int y){
	if(pos[x]>pos[y])return;
	Rep(j,pos[y],pos[x]+1){
		upd(rev[j-1],rev[j]);
		swap(rev[j-1],rev[j]);
	}
}

int col[maxn];
void init()
{
	For(i,1,cnt) col[a[i].c]=0;
	c1[0]=c2[0]=s1[0]=s2[0]=l1[0]=l2[0]=r1[0]=r2[0]=0;
	int X=cnt+1;
	c1[X]=c2[X]=s1[X]=s2[X]=l1[X]=l2[X]=r1[X]=r2[X]=0;
	For(i,1,cnt){
		++col[a[i].c];
		c1[i]=col[a[i].c];
		s1[i]=s1[i-1]+S(c1[i])-S(c1[i]-1);
		l1[i]=l1[i-1],r1[i]=r1[i-1];
		if(a[i].c==lc)l1[i]=c1[i];
		if(a[i].c==rc)r1[i]=c1[i];
	}
	For(i,1,cnt) col[a[i].c]=0;
	Rep(i,cnt,1){
		++col[a[i].c];
		c2[i]=col[a[i].c];
		s2[i]=s2[i+1]+S(c2[i])-S(c2[i]-1);
		l2[i]=l2[i+1],r2[i]=r2[i+1];
		if(a[i].c==lc)l2[i]=c2[i];
		if(a[i].c==rc)r2[i]=c2[i];
	}
}

void solve(int bl,int br)
{
	cnt=tot=0;
	lc=p[bl].c,rc=p[br].c;
	For(i,bl,br) a[++cnt]=p[i];
	For(i,1,cnt) pos[i]=rev[i]=i;
	sort(a+1,a+cnt+1);
	For(i,1,cnt)
		For(j,i+1,cnt)
			if(a[i].x!=a[j].x)
				t[++tot]=node(i,j,frac(a[j].y-a[i].y,a[j].x-a[i].x));
	sort(t+1,t+tot+1);
	init();
	int j=1;
	For(i,1,m){
		while(j<=tot && t[j].k<q[i].k){
			int x=t[j].x,y=t[j].y;
			work(x,y);
			++j;
		}
		int sum,sl,sr;
		int l=1,r=cnt,id=q[i].id;
		if(q[i].b>0){
			int x=0;
			while(l<=r){
				int mid=l+r>>1;
				if(q[i].F(a[mid].x,a[mid].y)<0)x=mid,l=mid+1;
				else r=mid-1;
			}
			sum=s1[x],sl=l1[x],sr=r1[x];
		}else{
			int x=cnt+1;
			while(l<=r){
				int mid=l+r>>1;
				if(q[i].F(a[mid].x,a[mid].y)<0)x=mid,r=mid-1;
				else l=mid+1;
			}
			sum=s2[x],sl=l2[x],sr=r2[x];
		}
		if(prc!=lc) res[id]+=sum,resc[id]=sr;
		else{
			res[id]+=sum+S(resc[id]+sl)-S(sl)-S(resc[id]);
			if(lc==rc)resc[id]+=sl;
			else resc[id]=sr; 
		}
	}
	prc=rc;
}

signed main()
{
	n=read(),m=read();
	For(i,1,n)p[i].x=read(),p[i].y=read(),p[i].c=read();
	sort(p+1,p+n+1,[&](point a,point b){return a.c<b.c||(a.c==b.c&&a<b);});
	For(i,1,m){
		int a=read(),b=read(),c=read();
		q[i].k=frac(-a,b),q[i].id=i; 
		q[i].a=a,q[i].b=b,q[i].c=c;
	}
	sort(q+1,q+m+1);
	for(int l=1;l<=n;l+=B) solve(l,min(n,l+B-1));
	For(i,1,m)printf("%lld\n",res[i]);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 5
Accepted
time: 88ms
memory: 73292kb

input:

1000 1000
8756 4483 237
-7891 -2818 114
8667 -7202 36
8150 -2 248
-4483 -9934 375
-9669 -1815 802
4008 9788 22
-2193 -4988 307
-9813 -4926 22
6344 8542 93
-9906 -9906 38
-3791 -2822 814
-7118 8408 51
-779 9589 3
-3211 1342 73
2346 -6502 112
31 -5037 6
3714 -4554 118
8788 6735 533
3860 -4232 5
3257 6...

output:

1047
1034
1001
1061
1060
956
1029
1001
1048
1001
1052
1023
1077
0
1077
1015
1060
1012
1022
1022
1077
1369
993
1001
1060
1003
1077
1034
1063
0
1001
1038
0
1001
1077
1001
1063
1063
1060
1034
0
1060
1060
1077
1031
1021
939
1023
849
1001
1060
1000
1008
1150
1007
878
1060
1060
1020
1043
1045
1077
1048
0
...

result:

ok 1000 numbers

Test #2:

score: 0
Accepted
time: 97ms
memory: 73116kb

input:

1000 1000
-809378 594895 7
-463965 286585 108
492337 -110361 235
163858 -391125 15
-546105 -878318 214
360416 -730538 407
-298417 -177165 227
752631 -788118 51
17699 323971 105
843170 208717 105
766811 396573 69
127415 309072 39
637608 -188063 352
224425 -952868 139
850507 751278 110
-995626 648647 ...

output:

997
969
935
993
9
1023
998
1014
999
969
1001
982
1023
937
1028
1035
973
1029
953
969
25
1001
889
976
985
1023
937
1023
1006
992
937
1009
1023
969
969
1001
925
937
969
1001
969
1023
937
937
1000
1023
969
932
962
1001
969
994
937
1001
937
905
1008
937
1023
958
1023
1001
731
1015
956
988
945
970
1042
9...

result:

ok 1000 numbers

Test #3:

score: -5
Wrong Answer
time: 93ms
memory: 75460kb

input:

1000 1000
-329387625 -341019218 102
13965986 806087844 9
-528171131 227425809 15
786487633 15830440 3
539535861 -963497336 7
-742845817 -372626578 35
-787231340 -132749801 3
-543467667 -942295910 119
-672244153 -833463748 15
-641088972 317851104 1
65665573 -823079703 26
247807062 -882007619 11
-6610...

output:

4529
5025
4868
4426
3446
3771
3781
3700
4842
4604
4259
3557
3731
3538
3979
4367
4879
3595
4336
3446
4754
3632
3762
3750
3446
4879
4728
4668
4610
3781
4816
3600
3760
4868
3760
3446
4387
3446
3760
4529
4447
4019
4879
3781
3611
4529
4529
4865
4711
3446
4868
4104
3446
3760
3781
3387
4647
4736
4519
3730
...

result:

wrong answer 276th numbers differ - expected: '3760', found: '0'

Subtask #2:

score: 0
Wrong Answer

Test #11:

score: 0
Wrong Answer
time: 6956ms
memory: 109936kb

input:

50000 500000
384309433 -953786733 1
-381089810 891795502 1
-701194776 440247159 1
-403243027 539105336 1
275206790 -652250203 1
-554746251 903743804 1
-457035253 912757156 1
-342310772 -17612092 1
-440332191 682239316 1
730332275 816145283 1
-701691234 -908289789 1
-632861504 -277378843 1
-567495050...

output:

618496745
614079729
616866497
614478068
613189405
616715138
615126465
616114802
614529490
614077984
616764805
614626805
615475280
615176840
617956645
618705730
613485153
614626805
614626805
612802541
617062849
617662305
613684025
618496745
612900340
615420738
613682609
617857600
616568900
614626805
...

result:

wrong answer 9301st numbers differ - expected: '619442473', found: '625000000'

Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Wrong Answer

Test #19:

score: 0
Wrong Answer
time: 5837ms
memory: 110192kb

input:

50000 500000
2598 -1000000 6
1388 -1000000 3
5492 1000000 8
-1000000 -3573 23
-1000000 -7880 15
-4285 1000000 7
1000000 5211 5
-1000000 5915 79
7147 -1000000 29
-9495 -1000000 25
9028 1000000 1
1000000 -4880 20
-8498 1000000 53
1000000 -4256 22
3107 -1000000 29
2061 -1000000 45
8876 -1000000 76
-279...

output:

12162691
12234856
12164084
12162691
12161484
12164084
12162691
12157836
12258260
12231963
12236398
12176350
12164084
12225490
12162691
12237049
12226003
12164084
12237262
12162691
12164084
12234856
12226003
12234856
12162691
12237049
48739336
12214677
12162691
12256061
12162691
12162691
12164084
122...

result:

wrong answer 5617th numbers differ - expected: '12225013', found: '14073596'

Subtask #5:

score: 15
Accepted

Test #25:

score: 15
Accepted
time: 6022ms
memory: 112104kb

input:

50000 500000
407 -5105 53
6211 98 81
7444 6196 1
-4294 -9353 26
4316 -3143 1
7144 2361 17
6364 -2245 14
-8684 -6564 3
6269 -687 2
-3139 5693 12
-9991 6547 20
2179 2178 47
-6588 7830 21
-6216 -200 3
9207 8834 24
9388 -5953 31
7752 4125 39
7875 -5517 22
-4701 2244 12
8088 3158 4
-4446 3467 1
-1002 154...

output:

10325005
11474809
0
0
11518032
0
0
49015742
49015742
49015742
0
11392831
0
49015742
0
13876057
0
13339251
10553686
49015742
49015742
49015742
14634637
0
0
49015742
49015742
0
11099497
49015742
11282162
0
0
49015742
0
49015742
0
49015742
49015742
49015742
0
49015742
13190125
13266876
0
0
10953869
116...

result:

ok 500000 numbers

Test #26:

score: 0
Accepted
time: 6214ms
memory: 110220kb

input:

50000 500000
-798827 -248238 55
-202385 195966 51
-935972 695372 12
-207494 597523 36
828639 839545 1
604085 -878258 28
854907 987889 33
-488652 555674 10
-308758 201373 2
786438 -72867 11
-533482 -614535 58
-853349 714523 60
729730 441018 27
193712 759574 30
-439466 -262414 1
-995124 383459 76
5638...

output:

12116545
1627120
12028488
8327000
11890527
12038075
12100532
30829152
23884384
48253618
0
0
48253618
12079058
4707441
34295749
1085217
12123770
48253618
20695368
11904819
3608287
12253559
0
12074236
12265677
12236373
48253618
12250929
0
11885547
11885547
7336386
12109428
48253618
0
0
36922388
511026...

result:

ok 500000 numbers

Test #27:

score: 0
Accepted
time: 5894ms
memory: 107952kb

input:

50000 500000
916228474 736861331 8
41223569 567024226 2
33633521 -640602439 11
43060388 157896754 9
522582493 -456464181 2
184581697 729182371 8
-915463955 774500464 2
595541741 4861507 3
375567184 -686285601 3
-59758078 -72014188 11
-535452680 -972290610 4
-425062848 998970443 3
776900364 383068694...

output:

73688076
34624304
35713642
74151261
74568055
73687317
80280672
73694989
74197031
74197031
190116467
73477393
74568055
23847839
86652478
126942497
108464771
74197031
125422244
56618750
74568055
73657436
9934358
85804146
74568055
221183265
178732347
73330257
73172655
74197031
73622903
74619669
7449609...

result:

ok 500000 numbers

Test #28:

score: 0
Accepted
time: 5939ms
memory: 109984kb

input:

50000 500000
-218467527 996547968 2
667898126 353067063 1
-703792310 -88011029 3
796101380 -150592337 1
233483304 202627437 1
227009907 -277641383 1
398753734 123601516 1
-932943038 -991506612 1
-586877275 884068330 1
-14924328 992992981 15
-558045242 470672933 7
-305045173 -532112183 7
183202586 80...

output:

34171044
145124721
133863158
322891322
149231859
144059207
201503200
147989909
145302374
145382184
145302231
144074835
144074694
186273717
391942339
147909184
145382184
147909184
45485862
30564622
147909184
13602211
29269333
136955300
161713859
145417496
411765627
144050978
147901245
147744158
30332...

result:

ok 500000 numbers

Test #29:

score: 0
Accepted
time: 5872ms
memory: 109952kb

input:

50000 500000
-209258179 -13673102 2
-536850965 -914833237 1
-859835086 -387099479 7
650316207 -949976551 2
490090099 432733293 1
295590818 336348152 1
-924146823 -481896977 1
-688990212 -402275949 1
905552333 225834084 1
100755207 -115968339 5
409919132 761133402 1
-486717813 -425455505 1
-448210451...

output:

342217921
351225756
335443425
351262509
109504291
342519167
344283077
344283077
335848738
803468818
538859665
335443425
344283077
344548834
351534475
335399668
765872733
216202376
344283077
335363755
351409541
51890336
201074052
335443425
351534475
335363755
351452899
124534601
342217921
351828683
3...

result:

ok 500000 numbers

Test #30:

score: 0
Accepted
time: 6195ms
memory: 107892kb

input:

50000 500000
-683034611 -711257501 27
60004722 -761142590 25
661166166 -468685357 7
849005124 -979617930 65
-844130034 690778896 26
420045533 -127259351 21
770352203 284425974 4
767529443 -311119877 25
-773073204 -708678356 61
-616770488 -127741421 27
-439194801 -804840917 7
-102517861 -591985498 15...

output:

5176455
36752777
12349440
9037077
11988285
12249163
12230497
6719556
12344687
12249163
11988285
12055113
31826512
12074401
15191922
32592923
12074401
12358058
10249606
12249163
11988285
12009512
12074401
12067085
11988285
12074401
12345034
12349440
12074401
11998182
12074401
23409470
1079840
2820121...

result:

ok 500000 numbers

Subtask #6:

score: 0
Skipped

Dependency #1:

0%

Subtask #7:

score: 0
Skipped

Dependency #1:

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