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 |
|---|---|---|---|---|---|---|---|---|---|
| #211021 | #2406. Thief Masters | drdilyor | 100 | 622ms | 40148kb | C++11 | 2.0kb | 2024-08-09 08:53:43 | 2024-08-09 12:31:21 |
answer
#include<bits/stdc++.h>
#define int long long
inline int read(){
int n=0,f=1,ch=getchar();
while(ch<'0'||ch>'9'){
if(ch=='-')f=-1;
ch=getchar();
}
while(ch>='0'&&ch<='9'){
n=n*10+ch-'0';
ch=getchar();
}
return n*f;
}
using namespace std;
void ts(){cout<<"IAKIOI\n";}
int n,m,k;
int a[1005][1005];
int b[1005][1005];
int c[1005][1005];
int d[1005][1005];
int e[1005][1005];
int dq[100005];
void solve(){
for(int i=1;i<=n;i++){
int fr=1,rear=0;
for(int j=1;j<=k;j++){
while(fr<=rear&&a[i][j]<a[i][dq[rear]])--rear;
dq[++rear]=j;
}
d[i][1]=a[i][dq[fr]];
for(int j=k+1;j<=m;j++){
while(fr<=rear&&a[i][j]<a[i][dq[rear]])--rear;
dq[++rear]=j;
if(dq[fr]==j-k)fr++;
d[i][j-k+1]=a[i][dq[fr]];
}
}
for(int i=1;i<=m-k+1;i++){
int fr=1,rear=0;
for(int j=1;j<=k;j++){
while(fr<=rear&&d[j][i]<d[dq[rear]][i])--rear;
dq[++rear]=j;
}
e[1][i]=d[dq[fr]][i];
for(int j=k+1;j<=m;j++){
while(fr<=rear&&d[j][i]<d[dq[rear]][i])--rear;
dq[++rear]=j;
if(dq[fr]==j-k)fr++;
e[j-k+1][i]=d[dq[fr]][i];
}
}
}
signed main(){
n=read(),m=read(),k=read();
for(int i=1;i<=n;i++)for(int j=1;j<=m;j++)a[i][j]=read();
for(int i=1;i<=n;i++){
int fr=1,rear=0;
for(int j=1;j<=k;j++){
while(fr<=rear&&a[i][j]>a[i][dq[rear]])--rear;
dq[++rear]=j;
}
b[i][1]=a[i][dq[fr]];
for(int j=k+1;j<=m;j++){
while(fr<=rear&&a[i][j]>a[i][dq[rear]])--rear;
dq[++rear]=j;
if(dq[fr]==j-k)fr++;
b[i][j-k+1]=a[i][dq[fr]];
}
}
for(int i=1;i<=m-k+1;i++){
int fr=1,rear=0;
for(int j=1;j<=k;j++){
while(fr<=rear&&b[j][i]>b[dq[rear]][i])--rear;
dq[++rear]=j;
}
c[1][i]=b[dq[fr]][i];
for(int j=k+1;j<=n;j++){
while(fr<=rear&&b[j][i]>b[dq[rear]][i])--rear;
dq[++rear]=j;
if(dq[fr]==j-k)fr++;
c[j-k+1][i]=b[dq[fr]][i];
}
}
solve();
int res=(1ll<<60);
for(int i=1;i<=n-k+1;i++){
for(int j=1;j<=m-k+1;j++)res=min(res,c[i][j]-e[i][j]);
}
cout<<res<<"\n";
return 0;
}
详细
小提示：点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 174ms
memory: 38884kb
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: 1252kb
input:
5 4 2 1 2 5 6 0 17 16 0 16 17 0 1 2 10 2 1 1 2 3 2
output:
2
result:
ok single line: '2'
Test #3:
score: 10
Accepted
time: 2ms
memory: 3432kb
input:
100 100 10 2 100001 200001 300001 400001 500001 600001 700001 800001 900001 1000001 1100001 1200001 ...
output:
908999
result:
ok single line: '908999'
Test #4:
score: 10
Accepted
time: 105ms
memory: 40148kb
input:
1000 1000 20 1 100001 200001 300001 400001 500001 600001 700001 800001 900001 1000001 1100001 120000...
output:
1901899
result:
ok single line: '1901899'
Test #5:
score: 10
Accepted
time: 34ms
memory: 19376kb
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: 50ms
memory: 23500kb
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: 72ms
memory: 39204kb
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:
998
result:
ok single line: '998'
Test #8:
score: 10
Accepted
time: 27ms
memory: 17904kb
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: 31ms
memory: 23184kb
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: 127ms
memory: 38888kb
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
