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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#109668#5378. 匹配问题vme500 151ms28124kbC++171.1kb2023-05-30 09:19:502023-05-30 09:19:53

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.
  • [2023-05-30 09:19:53]
  • 评测
  • 测评结果:0
  • 用时:151ms
  • 内存:28124kb
  • [2023-05-30 09:19:50]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define N 500005
#define pb push_back
const int up=5e5;
int n,m1,m2,tp,a[N],b[N],s[N],w[N],st[N],bt[N],dp[N];
vector<int> vc[N];
void upd(int x,int vl) {for(;x<=n;x+=x&-x) bt[x]+=vl;}
int qry(int x)
{
	int t=0,nw=0;--x;for(;x;x-=x&-x) nw+=bt[x];
	for(int i=18;i>=0;--i) if(t+(1<<i)<=n && nw>=bt[t+(1<<i)])
		t+=1<<i,nw-=bt[t];return t;
}
int main()
{
	scanf("%d %d %d",&n,&m1,&m2);
	for(int i=1;i<=n;++i) scanf("%d",&a[i]);
	for(int i=1;i<=n;++i) scanf("%d",&b[i]),++s[b[i]];
	sort(a+1,a+n+1);for(int i=1;i<=up;++i) s[i]+=s[i-1];
	for(int i=1,t,nw=-1e9;i<=n;++i)
	{
		w[i]=s[a[i]-1]-i+1;nw=max(nw,w[i]);
		t=s[min(a[i]+m1,up)]-nw;if(t<n) vc[t+1].pb(i);
	}
	for(int i=1,t,l,r,nw=0;i<=n;++i)
	{
		upd(i,1);for(auto j:vc[i]) upd(j,-1);
		while(tp && w[i]>w[st[tp]]) --tp;st[++tp]=i;
		t=s[min(a[i]+m2,up)]-i;l=1;r=tp;
		while(l<=r)
		{
			int mid=(l+r)/2;
			if(t<w[st[mid]]) l=mid+1;else r=mid-1;
		}nw=max(nw,st[r]);
		if(nw) dp[i]=dp[t<w[i]?qry(nw):nw-1]+1;
	}printf("%d\n",n-dp[n]);return 0;
}

详细

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 4
Accepted
time: 1ms
memory: 17280kb

input:

2 2 1
1 1
1 1

output:

2

result:

ok single line: '2'

Test #2:

score: 0
Accepted
time: 8ms
memory: 17260kb

input:

10 200000 100000
34181 300096 24293 22680 402306 193269 438170 254676 188147 73971
216849 477743 461911 135785 467234 278230 287107 223666 124173 135091

output:

7

result:

ok single line: '7'

Test #3:

score: -4
Wrong Answer
time: 3ms
memory: 17284kb

input:

10 200000 50000
298370 136488 436143 52173 206095 140981 321188 407844 342157 193338
138374 383207 156748 442404 386749 492604 354156 229996 447123 418264

output:

7

result:

wrong answer 1st lines differ - expected: '5', found: '7'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Wrong Answer

Test #100:

score: 0
Wrong Answer
time: 151ms
memory: 28124kb

input:

500000 500000 10
200184 74991 71203 334998 316800 34483 120570 301054 331108 232072 189788 397143 490296 56807 361700 88818 42376 460305 371750 450351 338384 429789 426045 445029 152316 408919 188124 144966 457495 475025 225370 260510 383159 495247 54319 246245 240728 372033 439599 119720 449020 451...

output:

412983

result:

wrong answer 1st lines differ - expected: '312193', found: '412983'

Subtask #5:

score: 0
Skipped

Dependency #1:

0%