NOI.AC

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
#211017	#2406. Thief Masters	fx_happy	100	1126ms	40448kb	C++11	2.1kb	2024-08-09 08:45:10	2024-08-09 12:31:11

answer

#include<bits/stdc++.h>
#define ll long long 
using namespace std;

const ll inf=1e16+39;

int n,m,k;
ll a[1010][1010];
ll b1[1010][1010],b2[1010][1010],b3[1010][1010],b4[1010][1010];
deque<pair<int,int>> q1,q2;

int main()
{
    std::ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    
    cin>>n>>m>>k;

    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            cin>>a[i][j];
    
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            while (q1.size()>0&&q1.back().first<a[i][j])
                q1.pop_back();
            q1.push_back({a[i][j],j});
            while (q1.size()>0&&q1.front().second<=j-k)
                q1.pop_front();
            if(j>=k)
                b1[i][j-k+1]=q1.front().first;
        }
        for(int j=1;j<=m;j++)
        {
            while (q2.size()>0&&q2.back().first>a[i][j])
                q2.pop_back();
            q2.push_back({a[i][j],j});
            while (q2.size()>0&&q2.front().second<=j-k)
                q2.pop_front();
            if(j>=k)
                b2[i][j-k+1]=q2.front().first;
        }
        q1.clear(), q2.clear();
    }

    q1.clear(),q2.clear();
    for(int j=1;j<=m-k+1;j++)
    {
        for(int i=1;i<=n;i++)
        {
            while (q1.size()>0&&q1.back().first<b1[i][j])
                q1.pop_back();
            q1.push_back({b1[i][j],i});
            while (q1.size()>0&&q1.front().second<=i-k)
                q1.pop_front();
            if(i>=k)
                b3[i-k+1][j]=q1.front().first;
        }
        for(int i=1;i<=n;i++)
        {
            while (q2.size()>0&&q2.back().first>b2[i][j])
                q2.pop_back();
            q2.push_back({b2[i][j],i});
            while (q2.size()>0&&q2.front().second<=i-k)
                q2.pop_front();
            if(i>=k)
                b4[i-k+1][j]=q2.front().first;
        }
        q1.clear(), q2.clear();
    }

    ll ans=inf;
    for(int i=1;i<=n-k+1;i++)
        for(int j=1;j<=m-k+1;j++)
            ans=min(ans,b3[i][j]-b4[i][j]);
    cout<<ans;
    return 0;
}

源文件, 语言: C++11

详细

小提示：点击横条可展开更详细的信息

Test #1:

score: 10

Accepted

time: 216ms

memory: 39184kb

input:

1000 1000 100
804544523 340648618 718292412 235345736 704741136 942776831 741228920 463473302 677289...

output:

998893495

result:

ok single line: '998893495'

Test #2:

score: 10

Accepted

time: 0ms

memory: 1348kb

input:

output:

result:

ok single line: '2'

Test #3:

score: 10

Accepted

time: 0ms

memory: 3548kb

input:

100 100 10
2 100001 200001 300001 400001 500001 600001 700001 800001 900001 1000001 1100001 1200001 ...

output:

result:

ok single line: '908999'

Test #4:

score: 10

Accepted

time: 190ms

memory: 40448kb

input:

1000 1000 20
1 100001 200001 300001 400001 500001 600001 700001 800001 900001 1000001 1100001 120000...

output:

result:

ok single line: '1901899'

Test #5:

score: 10

Accepted

time: 55ms

memory: 19528kb

input:

500 500 50
79289095 232165705 955620938 481434262 465576217 112035388 50089892 459799006 181906335 3...

output:

995944328

result:

ok single line: '995944328'

Test #6:

score: 10

Accepted

time: 105ms

memory: 19780kb

input:

500 1000 80
499163842 331022295 940054497 684192083 248823911 842132608 629298697 398526298 98438040...

output:

998299092

result:

ok single line: '998299092'

Test #7:

score: 10

Accepted

time: 182ms

memory: 39500kb

input:

1000 1000 80
102 134 429 251 299 109 264 669 727 296 112 550 270 270 544 660 131 546 968 219 113 678...

output:

result:

ok single line: '998'

Test #8:

score: 10

Accepted

time: 45ms

memory: 18072kb

input:

500 500 100
65532583 920409544 753795976 989349545 818384831 778207112 425141881 853270293 542112588...

output:

999172505

result:

ok single line: '999172505'

Test #9:

score: 10

Accepted

time: 103ms

memory: 19464kb

input:

500 1000 100
456896744 779471086 578349238 52507342 192194992 156396237 475084995 775765435 96617474...

output:

998801667

result:

ok single line: '998801667'

Test #10:

score: 10

Accepted

time: 230ms

memory: 39188kb

input:

1000 1000 100
629053044 957239666 456746076 940194386 201529807 592062148 244394389 825620014 223976...

output:

998862873

result:

ok single line: '998862873'

Extra Test:

score: 0

Extra Test Passed