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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 |
|---|---|---|---|---|---|---|---|---|---|
| #497866 | #8712. Flooding Wall | SirPh# | 0 | 253ms | 5856kb | C++20 | 2.5kb | 2024-07-29 19:41:02 | 2024-07-29 19:41:06 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
using namespace std;
const int mod=(int)1e9+7;
int dpl[10003][1001];
int dpr[10003][101];
signed main()
{
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];
int a7a=*max_element(arr.begin(),arr.end());
a7a=max(a7a,*max_element(brr.begin(),brr.end()));
int 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;
}
dpl[0][0]=1;
for(int i=1;i<=n;i++)
{
for(int j=arr[i];j>=0;j--)
{
dpl[i][arr[i]]+=dpl[i-1][j];
dpl[i][arr[i]]%=mod;
}
for(int j=arr[i]+1;j<=a7a;j++)
{
dpl[i][j]+=dpl[i-1][j];
dpl[i][j]%=mod;
}
for(int j=brr[i];j>=0;j--)
{
dpl[i][brr[i]]+=dpl[i-1][j];
dpl[i][brr[i]]%=mod;
}
for(int j=brr[i]+1;j<=a7a;j++)
{
dpl[i][j]+=dpl[i-1][j];
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];
dpr[i][arr[i]]%=mod;
}
for(int j=arr[i]+1;j<=a7a;j++)
{
dpr[i][j]+=dpr[i+1][j];
dpr[i][j]%=mod;
}
for(int j=brr[i];j>=0;j--)
{
dpr[i][brr[i]]+=dpr[i+1][j];
dpr[i][brr[i]]%=mod;
}
for(int j=brr[i]+1;j<=a7a;j++)
{
dpr[i][j]+=dpr[i+1][j];
dpr[i][j]%=mod;
}
}
// cout<<ans<<endl;
for(int i=1;i<=n;i++)
{
for(int j=arr[i];j<=a7a;j++)
{
for(int k=arr[i];k<=a7a;k++)
{
int x=dpl[i-1][j]*dpr[i+1][k];
// cout<<i<<" "<<j<<" "<<k<<" "<<dpl[i-1][j]<<" "<<dpr[i+1][j]<<endl;
x%=mod;
ans+=((min(j,k)-arr[i])*x)%mod;
ans%=mod;
}
}
for(int j=brr[i];j<=a7a;j++)
{
for(int k=brr[i];k<=a7a;k++)
{
int x=dpl[i-1][j]*dpr[i+1][k];
// cout<<i<<" "<<j<<" "<<k<<" "<<dpl[i-1][j]<<" "<<dpr[i+1][j]<<endl;
x%=mod;
ans+=((min(j,k)-brr[i])*x)%mod;
ans%=mod;
}
}
}
cout<<ans<<endl;
}
详细
Subtask #1:
score: 0
Runtime Error
Test #1:
score: 8
Accepted
time: 0ms
memory: 5640kb
input:
4 1 1 1 1 2 2 2 2
output:
6
result:
ok single line: '6'
Test #2:
score: 8
Accepted
time: 0ms
memory: 5568kb
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: 5556kb
input:
1 1 2
output:
0
result:
ok single line: '0'
Test #4:
score: 8
Accepted
time: 1ms
memory: 5776kb
input:
2 1 1 2 2
output:
0
result:
ok single line: '0'
Test #5:
score: 8
Accepted
time: 1ms
memory: 5552kb
input:
3 1 1 1 2 2 2
output:
1
result:
ok single line: '1'
Test #6:
score: 8
Accepted
time: 0ms
memory: 5644kb
input:
3 1 1 1 3 2 3
output:
3
result:
ok single line: '3'
Test #7:
score: 8
Accepted
time: 1ms
memory: 5644kb
input:
3 2 1 1 3 2 3
output:
4
result:
ok single line: '4'
Test #8:
score: 8
Accepted
time: 0ms
memory: 5620kb
input:
3 1 1 2 3 2 3
output:
4
result:
ok single line: '4'
Test #9:
score: 8
Accepted
time: 1ms
memory: 5564kb
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: 5848kb
input:
3 1 4 4 3 1 1
output:
2
result:
ok single line: '2'
Test #11:
score: 0
Runtime Error
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:
result:
Subtask #2:
score: 0
Wrong Answer
Test #23:
score: 0
Wrong Answer
time: 253ms
memory: 5856kb
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:
307181668
result:
wrong answer 1st lines differ - expected: '164439470', found: '307181668'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Skipped
Dependency #1:
0%
Subtask #5:
score: 0
Runtime Error
Test #57:
score: 0
Runtime Error
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:
0%