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
#213772	#2406. Thief Masters	yiwei	100	3502ms	20856kb	C++11	2.0kb	2024-11-13 19:16:34	2024-11-13 23:01:13

answer

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

const int N = 1010;

int n,m,k;

int a[N][N],_1[N][N],_2[N][N],_3[N][N],_4[N][N];

int main(){
    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++){
        deque<int> q;
        for (int j = 1;j <= m;j++){
            while (q.size() && a[i][j] > a[i][q.back()])
                q.pop_back();
            q.push_back(j);
            while (q.size() && j - q.front() >= k)  
                q.pop_front();
            if (j >= k)
                _1[i][j - k + 1] = a[i][q.front()];
        }
    }
    for (int j = 1;j <= m - k + 1;j++){
        deque<int> q;
        for (int i = 1;i <= n;i++){
            while (q.size() && _1[i][j] > _1[q.back()][j])
                q.pop_back();
            q.push_back(i);
            while (q.size() && i - q.front() >= k)
                q.pop_front();
            if (i >= k)
                _2[i - k + 1][j] = _1[q.front()][j];
        }
    }
    for (int i = 1;i <= n;i++){
        deque<int> q;
        for (int j = 1;j <= m;j++){
            while (q.size() && a[i][j] < a[i][q.back()])
                q.pop_back();
            q.push_back(j);
            while (q.size() && j - q.front() >= k)
                q.pop_front();
            if (j >= k)
                _3[i][j - k + 1] = a[i][q.front()];
        }
    }   
    for (int j = 1;j <= m - k + 1;j++){
        deque<int> q;
        for (int i = 1;i <= n;i++){
            while (q.size() && _3[i][j] < _3[q.back()][j])
                q.pop_back();
            q.push_back(i);
            while (q.size() && i - q.front() >= k)
                q.pop_front();
            if (i >= k)
                _4[i - k + 1][j] = _3[q.front()][j];
        }
    }
    int ans = 1e9;
    for (int i = 1;i <= n - k + 1;i++){
        for (int j = 1;j <= m - k + 1;j++){
            ans = min(ans,_2[i][j] - _4[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: 813ms

memory: 20208kb

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: 1340kb

input:

output:

result:

ok single line: '2'

Test #3:

score: 10

Accepted

time: 6ms

memory: 3152kb

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: 715ms

memory: 20856kb

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: 174ms

memory: 10728kb

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: 376ms

memory: 10508kb

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: 519ms

memory: 20368kb

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: 211ms

memory: 10340kb

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: 235ms

memory: 10344kb

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: 453ms

memory: 20208kb

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