QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#108759#5123. StreetsshenxingeWA 982ms22168kbC++141.4kb2023-05-26 16:53:152023-05-26 16:53:19

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.
  • [2023-05-26 16:53:19]
  • 评测
  • 测评结果:WA
  • 用时:982ms
  • 内存:22168kb
  • [2023-05-26 16:53:15]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
using namespace std;
constexpr int maxn(1e5+10),maxe(1e5);
int n,m,T,X[maxn],Y[maxn],A[maxn],B[maxn],va[maxn],vb[maxn],f[maxn][22],st[maxn],top,inf,mx,c;
inline int F(int i,int j){return i*vb[j]+j*va[i];}
inline int check(int i,int j){
	for(int l=20;l;l--) if(f[f[j][l]][0]&&F(i,f[j][l])>=F(i,f[f[j][l]][0])) j=f[j][l];
	if(j!=mx&&F(i,f[j][0])<=c) return true; return F(i,j)<=c;
}
signed main(){
	ios::sync_with_stdio(false),cin.tie(nullptr);
	cin >> n >> m >> T;memset(va,0x3f,sizeof va),memset(vb,0x3f,sizeof vb),inf=vb[0];
	for(int i=1;i<=n;i++) cin >> X[i];for(int i=1;i<=n;i++) cin >> A[i];
	for(int i=1;i<=m;i++) cin >> Y[i];for(int i=1;i<=m;i++) cin >> B[i];
	for(int i=1;i<=n;i++) for(int j=1;j<i;j++) va[X[i]-X[j]]=min(va[X[i]-X[j]],A[i]+A[j]);
	for(int i=1;i<=m;i++) for(int j=1;j<i;j++) vb[Y[i]-Y[j]]=min(vb[Y[i]-Y[j]],B[i]+B[j]);
	for(int i=maxe;i;i--) if(vb[i]!=inf){
		while(top>1&&(vb[st[top]]-vb[i])*(st[top-1]-st[top])>=(vb[st[top-1]]-vb[st[top]])*(st[top]-i)) top--;
		if(!top) mx=i; else f[i][0]=st[top]; st[++top]=i;
	}
	for(int i=1;i<20;i++) for(int u=1;u<=maxe;u++) f[u][i]=f[f[u][i-1]][i-1];
	while(T--){cin >> c;int ans=0;
		for(int i=maxe,p=1;i;i--) if(va[i]!=inf) while(true){
			while(p<=mx&&vb[p]==inf) p++;
			if(p<=mx&&check(i,p)) ans=max(ans,i*p),p++;
			else break;
		}cout << ans << '\n';
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 18ms
memory: 22092kb

input:

3 4 20
1 3 4
3 1 2
1 3 4 7
4 2 1 2
1
5
6
7
9
10
11
12
15
16
17
22
23
28
30
35
43
47
49
57

output:

0
0
1
1
1
2
2
3
3
4
4
6
6
9
9
12
12
12
18
18

result:

ok 20 numbers

Test #2:

score: -100
Wrong Answer
time: 982ms
memory: 22168kb

input:

4995 4998 100
4 7 20 34 44 100 102 130 175 198 205 250 257 259 267 278 300 324 337 346 353 364 403 427 439 440 451 523 532 534 555 599 634 639 756 802 805 825 855 859 890 905 912 915 953 989 1014 1031 1052 1059 1097 1124 1183 1216 1297 1308 1337 1342 1361 1392 1400 1421 1451 1471 1523 1537 1542 1619...

output:

9991201920
9846268520
907122720
8760174885
6060506760
9937098864
9829578925
8760174885
7574925510
4509455216
6775313892
2333101785
5640051048
8604521982
9847464968
8760672560
8729195013
8602353132
8635059390
4509455216
1009903314
6527370960
9801310985
2333101785
5841754098
8602353132
1714259040
6697...

result:

wrong answer 2nd numbers differ - expected: '9941157660', found: '9846268520'