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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#497968 | #8712. Flooding Wall | SirPh# | 25 | 3ms | 22296kb | C++20 | 3.9kb | 2024-07-29 21:05:34 | 2024-07-29 21:05:35 |
Judging History
answer
#include<bits/stdc++.h>
// #define int long long
#pragma GCC optimize("Ofast")
#define endl '\n'
using namespace std;
const int mod=(int)1e9+7;
int dpl[10002][20002];
int dpr[10002][20002];
int getsuml(int i,int l,int r)
{
return (dpl[i][r]-dpl[i][l-1]+mod)%mod;
}
int getsumr(int i,int l,int r)
{
return (dpr[i][r]-dpr[i][l-1]+mod)%mod;
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin>>n;
vector<int>arr(n+1);
vector<int>brr(n+1);
for(int i=1;i<=n;i++)cin>>arr[i];
for(int i=1;i<=n;i++)cin>>brr[i];
vector<int>hi;
hi.push_back(0);
for(auto i:arr)hi.push_back(i);
for(auto i:brr)hi.push_back(i);
sort(hi.begin(),hi.end());
hi.erase(unique(hi.begin(),hi.end()));
int a7a=*max_element(arr.begin(),arr.end());
a7a=max(a7a,*max_element(brr.begin(),brr.end()));
a7a=lower_bound(hi.begin(),hi.end(),a7a)-hi.begin();
long long ans=0;
for(int i=1;i<=n;i++)
{
// ans=ans-(((arr[i]*((1ll<<(n-1))%mod))%mod)+mod)%mod;
// ans=ans-(((brr[i]*((1ll<<(n-1))%mod))%mod)+mod)%mod;
}
// cout<<dpl.size();
// return 0;
dpl[0][0]=1;
for(int i=1;i<=n;i++)arr[i]=lower_bound(hi.begin(),hi.end(),arr[i])-hi.begin(),brr[i]=lower_bound(hi.begin(),hi.end(),brr[i])-hi.begin();
for(int i=1;i<=n;i++)
{
for(int j=arr[i];j>=0;j--)
{
dpl[i][arr[i]]+=dpl[i-1][j];
if(dpl[i][arr[i]]>=mod)
dpl[i][arr[i]]-=mod;
}
for(int j=arr[i]+1;j<=a7a;j++)
{
dpl[i][j]+=dpl[i-1][j];
if(dpl[i][j]>=mod)
dpl[i][j]-=mod;
}
for(int j=brr[i];j>=0;j--)
{
dpl[i][brr[i]]+=dpl[i-1][j];
if(dpl[i][brr[i]]>=mod)
dpl[i][brr[i]]-=mod;
}
for(int j=brr[i]+1;j<=a7a;j++)
{
dpl[i][j]+=dpl[i-1][j];
if(dpl[i][j]>=mod)
dpl[i][j]-=mod;
}
}
dpr[n+1][0]=1;
for(int i=n;i>=1;i--)
{
for(int j=arr[i];j>=0;j--)
{
dpr[i][arr[i]]+=dpr[i+1][j];
if(dpr[i][arr[i]]>=mod)
dpr[i][arr[i]]-=mod;
}
for(int j=arr[i]+1;j<=a7a;j++)
{
dpr[i][j]+=dpr[i+1][j];
if(dpr[i][j]>=mod)
dpr[i][j]-=mod;
}
for(int j=brr[i];j>=0;j--)
{
dpr[i][brr[i]]+=dpr[i+1][j];
if(dpr[i][brr[i]]>=mod)
dpr[i][brr[i]]-=mod;
}
for(int j=brr[i]+1;j<=a7a;j++)
{
dpr[i][j]+=dpr[i+1][j];
if(dpr[i][j]>=mod)
dpr[i][j]-=mod;
}
}
// cout<<ans<<endl;
for(int i=0;i<=n+1;i++)
for(int j=1;j<=a7a;j++){
dpl[i][j]+=dpl[i][j-1];
if(dpl[i][j]>=mod)
dpl[i][j]-=mod;
dpr[i][j]+=dpr[i][j-1];
if(dpr[i][j]>=mod)
dpr[i][j]-=mod;
}
for(int i=1;i<=n;i++)
{
for(int j=min(arr[i],brr[i]);j<=a7a;j++)
{
if(j>=arr[i]){
long long x=getsuml(i-1,j,j);
x*=getsumr(i+1,j,a7a);
x%=mod;
ans+=((hi[j]-hi[arr[i]])*x)%mod;
x=getsumr(i+1,j,j);
x*=getsuml(i-1,j+1,a7a);
x%=mod;
ans+=((hi[j]-hi[arr[i]])*x)%mod;
if(ans>=mod)ans-=mod;
}
if(j>=brr[i])
{
long x=getsuml(i-1,j,j);
x*=getsumr(i+1,j,a7a);
x%=mod;
ans+=((hi[j]-hi[brr[i]])*x)%mod;
x=getsumr(i+1,j,j);
x*=getsuml(i-1,j+1,a7a);
x%=mod;
ans+=((hi[j]-hi[brr[i]])*x)%mod;
if(ans>=mod)ans-=mod;
}
}
}
cout<<ans<<endl;
}
詳細信息
Subtask #1:
score: 8
Accepted
Test #1:
score: 8
Accepted
time: 1ms
memory: 5732kb
input:
4 1 1 1 1 2 2 2 2
output:
6
result:
ok single line: '6'
Test #2:
score: 8
Accepted
time: 1ms
memory: 7804kb
input:
10 1 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1
output:
21116
result:
ok single line: '21116'
Test #3:
score: 8
Accepted
time: 1ms
memory: 7652kb
input:
1 1 2
output:
0
result:
ok single line: '0'
Test #4:
score: 8
Accepted
time: 1ms
memory: 5576kb
input:
2 1 1 2 2
output:
0
result:
ok single line: '0'
Test #5:
score: 8
Accepted
time: 1ms
memory: 5636kb
input:
3 1 1 1 2 2 2
output:
1
result:
ok single line: '1'
Test #6:
score: 8
Accepted
time: 1ms
memory: 7744kb
input:
3 1 1 1 3 2 3
output:
3
result:
ok single line: '3'
Test #7:
score: 8
Accepted
time: 1ms
memory: 5684kb
input:
3 2 1 1 3 2 3
output:
4
result:
ok single line: '4'
Test #8:
score: 8
Accepted
time: 1ms
memory: 5624kb
input:
3 1 1 2 3 2 3
output:
4
result:
ok single line: '4'
Test #9:
score: 8
Accepted
time: 1ms
memory: 5704kb
input:
4 1 1 2 2 2 2 1 1
output:
6
result:
ok single line: '6'
Test #10:
score: 8
Accepted
time: 1ms
memory: 5628kb
input:
3 1 4 4 3 1 1
output:
2
result:
ok single line: '2'
Test #11:
score: 8
Accepted
time: 1ms
memory: 9708kb
input:
20 801072306 297281669 94099424 745640358 822582129 579751930 776707816 425952653 529794053 256263083 615445445 401366545 990263003 967996508 788867983 916880116 837997768 346996508 623409388 122077161 141734988 448434751 822901346 825591177 388082644 468025968 260356829 1164654 537396602 730502935 ...
output:
840988190
result:
ok single line: '840988190'
Test #12:
score: 8
Accepted
time: 0ms
memory: 7788kb
input:
15 792312195 195812430 401437979 703756992 502275277 612055402 556065888 470806179 556125857 640437896 240743729 861383776 500299988 911972088 161499505 167335533 694282920 379241393 144223073 973249939 83979787 962250505 359871412 130233016 655843497 928153117 542969567 974346871 369758881 962874102
output:
617169726
result:
ok single line: '617169726'
Test #13:
score: 8
Accepted
time: 1ms
memory: 7744kb
input:
20 1 1 2 1 1 1 2 2 2 2 2 1 1 1 1 2 2 1 2 1 2 2 1 2 2 2 1 1 1 1 1 2 2 2 2 1 1 2 1 2
output:
8388630
result:
ok single line: '8388630'
Test #14:
score: 8
Accepted
time: 0ms
memory: 7932kb
input:
15 2 1 1 2 1 2 2 1 2 1 2 1 2 2 1 1 2 2 1 2 1 1 2 1 2 1 2 1 1 2
output:
180241
result:
ok single line: '180241'
Test #15:
score: 8
Accepted
time: 0ms
memory: 9732kb
input:
20 10 3 8 2 5 7 8 3 3 10 5 6 1 2 1 9 10 2 7 10 6 6 2 3 6 10 4 6 7 2 3 3 5 7 2 8 2 1 5 1
output:
78020608
result:
ok single line: '78020608'
Test #16:
score: 8
Accepted
time: 1ms
memory: 9828kb
input:
20 999999992 999999995 999999995 999999998 999999994 999999996 999999992 1000000000 1000000000 999999997 999999999 999999994 999999998 999999992 999999999 1000000000 999999993 999999999 999999996 999999998 999999998 999999998 999999996 999999993 999999996 999999997 1000000000 999999995 999999994 999...
output:
44474368
result:
ok single line: '44474368'
Test #17:
score: 8
Accepted
time: 1ms
memory: 9852kb
input:
20 999999996 10 6 5 4 1 7 9 5 10 1 4 6 3 10 5 3 10 4 999999997 999999997 4 10 7 5 6 2 2 2 7 2 7 3 5 7 1 8 9 2 1000000000
output:
701155847
result:
ok single line: '701155847'
Test #18:
score: 8
Accepted
time: 1ms
memory: 7712kb
input:
11 1 4 2 1 10 6 3 10 1 10 10 6 8 8 7 1 1 1 9 7 9 3
output:
56064
result:
ok single line: '56064'
Test #19:
score: 8
Accepted
time: 1ms
memory: 5672kb
input:
13 999999992 999999993 999999999 999999998 999999994 999999998 999999991 999999991 999999999 999999996 999999994 999999991 999999994 999999994 999999991 999999994 999999997 999999997 1000000000 999999996 999999993 999999992 999999992 999999992 999999998 999999991
output:
184256
result:
ok single line: '184256'
Test #20:
score: 8
Accepted
time: 1ms
memory: 9692kb
input:
17 1000000000 6 4 10 10 4 2 4 10 2 7 1 3 8 4 1 999999996 999999997 3 6 4 3 6 5 10 5 7 6 10 10 7 10 3 999999997
output:
968149511
result:
ok single line: '968149511'
Test #21:
score: 8
Accepted
time: 1ms
memory: 9780kb
input:
20 5 900000001 800000002 700000003 600000004 500000005 10 5 1 100000009 10 3 2 300000007 8 500000005 3 3 800000002 2 1000000000 3 6 6 10 4 400000006 300000007 200000008 1 1 100000009 200000008 5 400000006 4 600000004 700000003 2 900000001
output:
681216662
result:
ok single line: '681216662'
Test #22:
score: 8
Accepted
time: 0ms
memory: 7800kb
input:
19 1000000000 2 777777778 7 555555556 444444445 333333334 222222223 6 4 111111112 222222223 8 444444445 555555556 6 10 888888889 1000000000 3 888888889 3 666666667 6 8 7 10 111111112 1 5 4 333333334 3 4 666666667 777777778 7 4
output:
608096464
result:
ok single line: '608096464'
Subtask #2:
score: 17
Accepted
Test #23:
score: 17
Accepted
time: 0ms
memory: 21972kb
input:
100 948 425 211 688 416 81 356 602 712 954 117 522 797 75 281 491 662 669 78 156 939 526 929 937 916 619 166 777 48 898 449 278 298 714 668 755 679 38 389 602 195 135 672 833 655 541 473 27 596 274 351 353 598 993 837 246 950 99 179 751 481 843 550 195 964 279 806 82 330 599 124 756 649 838 513 625 ...
output:
164439470
result:
ok single line: '164439470'
Test #24:
score: 17
Accepted
time: 0ms
memory: 22296kb
input:
99 426 562 392 187 480 118 86 459 941 159 104 108 323 616 104 679 464 929 60 387 335 298 540 352 520 152 76 233 69 50 422 839 236 113 79 782 44 253 791 857 393 767 297 267 23 523 274 514 489 58 217 361 408 753 990 491 787 529 759 351 668 348 811 737 764 672 471 115 815 701 604 348 708 512 227 707 20...
output:
295469554
result:
ok single line: '295469554'
Test #25:
score: 17
Accepted
time: 0ms
memory: 22024kb
input:
100 2 1 1 2 2 2 2 1 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 2 1 1 2 1 2 2 1 2 2 2 1 1 1 1 2 2 2 2 2 2 2 1 2 1 1 1 1 2 2 2 2 2 2 1 2 1 2 1 2 2 1 1 2 2 1 1 2 1 2 2 2 1 1 1 1 1 1 2 2 1 2 1 1 2 1 1 1 2 1 1 2 2 1 1 2 2 1 1 1 1 2 1 1 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 1 2 1 1 1 2 2 2 2 1 1 1 1 1 1 1 ...
output:
865821460
result:
ok single line: '865821460'
Test #26:
score: 17
Accepted
time: 0ms
memory: 20048kb
input:
97 2 1 2 1 1 1 2 2 2 1 2 1 2 1 2 2 1 1 2 1 1 1 1 2 2 2 1 1 1 2 1 2 2 2 1 1 1 1 2 2 1 1 1 1 1 1 1 1 2 2 1 2 2 1 1 1 2 1 2 2 2 2 2 1 2 1 1 2 1 1 2 2 2 2 1 2 2 1 1 1 1 2 1 2 2 2 1 1 2 2 1 1 2 2 1 2 2 1 2 1 2 2 2 1 1 1 2 1 2 1 2 1 1 2 2 1 2 2 2 2 1 1 1 2 2 2 1 2 1 1 1 2 2 2 2 1 1 2 2 2 2 2 2 2 2 1 1 2 1...
output:
237658155
result:
ok single line: '237658155'
Test #27:
score: 17
Accepted
time: 3ms
memory: 22016kb
input:
100 2 7 7 7 10 10 5 3 8 7 4 4 3 3 9 9 3 4 10 10 2 2 8 6 8 5 8 5 6 5 9 7 9 4 9 4 2 6 4 7 8 8 1 4 2 4 5 3 6 8 2 5 6 1 4 10 10 1 8 7 4 9 2 8 9 5 7 8 9 8 3 5 4 7 6 3 3 1 9 4 1 4 9 1 10 3 3 9 10 7 7 8 5 8 4 10 8 4 1 4 6 8 5 8 9 2 9 9 7 3 10 1 4 10 7 1 4 1 6 8 5 7 7 7 9 3 2 3 1 9 7 2 6 5 7 9 10 1 8 1 2 6 ...
output:
12245240
result:
ok single line: '12245240'
Test #28:
score: 17
Accepted
time: 0ms
memory: 18180kb
input:
100 996 996 998 996 997 996 995 998 991 996 997 1000 992 1000 995 999 1000 999 998 992 995 998 994 996 994 994 995 1000 992 992 1000 994 993 999 997 997 997 1000 991 994 995 999 1000 999 994 992 997 992 999 992 992 1000 999 996 995 992 999 993 997 993 992 997 991 992 992 995 992 994 998 1000 998 100...
output:
699955927
result:
ok single line: '699955927'
Test #29:
score: 17
Accepted
time: 2ms
memory: 22256kb
input:
100 991 6 5 1 8 3 10 10 7 2 8 10 4 9 6 8 1 2 9 6 7 8 8 1 9 5 8 2 5 2 6 1 8 9 9 1 5 9 2 7 8 6 10 8 1 10 3 4 5 5 5 1 1 4 5 7 7 7 3 7 8 4 7 4 4 10 3 1 4 7 7 6 4 3 3 4 4 1 4 9 3 7 9 5 4 3 3 5 7 7 8 10 3 6 4 10 4 5 3 991 994 1 8 5 1 5 7 3 3 4 3 1 6 2 1 4 10 5 8 8 5 7 9 6 4 2 9 3 2 4 3 8 7 1 4 7 9 7 1 4 7...
output:
823274616
result:
ok single line: '823274616'
Test #30:
score: 17
Accepted
time: 0ms
memory: 19996kb
input:
95 3 1 9 8 2 3 7 1 9 9 10 1 1 10 10 9 9 2 4 9 6 7 10 2 8 8 2 4 7 4 9 4 2 10 1 6 1 8 9 5 2 4 1 9 3 1 10 4 10 4 3 7 1 7 9 2 10 2 5 5 4 8 4 7 8 8 2 7 3 3 9 3 9 10 5 3 2 7 10 3 10 9 1 1 1 9 7 10 2 6 5 7 10 7 10 5 7 4 3 9 9 9 4 10 1 6 5 7 6 9 3 10 3 3 3 9 2 5 5 10 10 7 8 2 7 5 5 6 6 6 10 5 6 5 6 4 10 2 8...
output:
39455183
result:
ok single line: '39455183'
Test #31:
score: 17
Accepted
time: 2ms
memory: 20272kb
input:
99 991 1000 999 997 991 997 991 998 993 993 991 997 998 998 993 991 995 999 1000 995 994 991 994 998 1000 995 997 995 996 998 997 994 997 997 993 993 999 993 998 997 998 994 998 999 998 992 991 996 1000 1000 995 994 997 997 1000 995 993 996 994 993 996 997 991 991 993 992 996 1000 994 1000 993 998 9...
output:
177632228
result:
ok single line: '177632228'
Test #32:
score: 17
Accepted
time: 2ms
memory: 20032kb
input:
93 998 9 4 6 6 3 7 6 6 2 3 1 1 4 3 4 3 10 1 7 6 6 7 2 1 6 2 7 5 10 10 5 3 6 9 3 7 8 2 4 2 5 8 4 9 8 9 6 6 10 9 8 5 9 6 7 8 6 10 4 3 4 2 10 3 6 6 3 3 7 1 5 8 8 2 4 3 6 5 4 4 9 2 4 4 10 10 5 3 4 6 5 998 991 3 7 1 2 7 4 4 7 4 8 3 7 7 6 6 1 8 3 8 2 4 9 7 2 1 6 8 4 6 1 9 6 2 8 8 5 1 5 1 6 1 2 8 1 7 7 10 ...
output:
19480584
result:
ok single line: '19480584'
Test #33:
score: 17
Accepted
time: 0ms
memory: 22164kb
input:
100 8 4 962 943 7 905 886 867 848 4 810 9 772 1 10 9 8 677 658 639 2 601 6 563 544 1 506 487 3 5 3 1 392 5 354 335 316 297 10 259 240 221 5 183 164 10 126 10 9 9 50 69 88 3 126 145 164 1 202 6 8 9 8 1 316 335 354 6 3 411 5 9 468 487 506 10 544 2 582 601 620 6 658 677 8 715 8 2 4 2 7 4 7 2 886 905 9 ...
output:
224554505
result:
ok single line: '224554505'
Test #34:
score: 17
Accepted
time: 3ms
memory: 20084kb
input:
97 8 980 2 940 920 900 880 8 5 820 5 2 7 740 5 700 9 8 640 4 8 8 3 540 520 500 7 460 7 420 9 380 10 3 6 300 280 7 240 220 200 180 10 140 4 3 80 60 7 60 10 1 7 140 160 5 200 4 10 2 280 1 3 10 360 5 400 7 9 1 480 7 520 8 560 9 8 620 640 5 680 700 720 6 7 780 1 9 3 4 9 8 920 940 960 7 9 1000 8 960 3 4 ...
output:
11356755
result:
ok single line: '11356755'
Subtask #3:
score: 0
Time Limit Exceeded
Dependency #2:
100%
Accepted
Test #35:
score: 0
Time Limit Exceeded
input:
10000 723 904 141 407 718 128 268 838 287 173 507 490 602 335 475 954 785 148 163 452 709 394 16 817 80 850 830 464 419 833 306 591 731 966 380 514 365 563 290 58 620 883 384 413 312 996 203 57 954 951 996 176 352 789 531 233 697 231 230 730 482 891 67 514 75 259 673 241 851 957 928 891 510 592 290 ...
output:
result:
Subtask #4:
score: 0
Skipped
Dependency #1:
100%
Accepted
Dependency #2:
100%
Accepted
Dependency #3:
0%
Subtask #5:
score: 0
Time Limit Exceeded
Test #57:
score: 0
Time Limit Exceeded
input:
500000 1 1 1 1 2 2 2 1 1 1 1 1 2 2 1 1 2 2 2 2 1 2 1 1 2 1 1 1 1 2 1 2 2 1 1 2 2 2 1 1 2 2 2 2 1 2 2 2 2 1 2 2 2 1 2 2 2 1 2 2 2 2 2 2 2 2 1 1 2 1 2 1 2 2 1 2 2 2 2 2 2 2 1 1 1 2 2 2 1 1 2 1 2 2 1 2 2 1 2 2 2 1 2 2 2 2 2 2 2 2 1 1 1 2 1 2 1 1 2 1 2 1 2 2 1 1 2 1 1 1 1 1 2 2 2 2 2 2 1 2 2 1 1 2 1 2 1...
output:
result:
Subtask #6:
score: 0
Skipped
Dependency #1:
100%
Accepted
Dependency #2:
100%
Accepted
Dependency #3:
0%