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 |
|---|---|---|---|---|---|---|---|---|---|
| #173180 | #1445. 理想的正方形 | 2951154480 | 100 | 1421ms | 12992kb | C++ | 823b | 2023-07-15 02:03:26 | 2023-07-15 02:03:26 |
answer
#include<bits/stdc++.h>
using namespace std;
int a,b,n,v[1005][1005],f[1005][1005],g[1005][1005],p[1005],q[1005],h=1,t,h1=1,t1;
int main()
{
int ans=1e9-1;
scanf("%d%d%d",&a,&b,&n);
for(int i=1;i<=a;i++){
for(int j=1;j<=b;j++){
scanf("%d",&v[i][j]);
}
}
for(int i=1;i<=a;i++){
h=1,t=0,h1=1,t1=0;
for(int j=1;j<=b;j++){
while(t>=h&&v[i][j]>v[i][q[t]]) t--;
q[++t]=j;
if(q[t]-q[h]>=n) h++;
f[i][j]=v[i][q[h]];
while(t1>=h1&&v[i][j]<v[i][p[t1]]) t1--;
p[++t1]=j;
if(p[t1]-p[h1]>=n) h1++;
g[i][j]=v[i][p[h1]];
}
}
for(int i=1;i<=a-n+1;i++){
for(int j=n;j<=b;j++){
int maxn=0,minn=1e8;
for(int k=i;k<=i+n-1;k++){
maxn=max(maxn,f[k][j]);
minn=min(minn,g[k][j]);
}
ans=min(ans,maxn-minn);
}
}
printf("%d",ans);
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: 318ms
memory: 12988kb
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: 320ms
memory: 12988kb
input:
1000 1000 100 629053044 957239666 456746076 940194386 201529807 592062148 244394389 825620014 223976...
output:
998862873
result:
ok single line: '998862873'
Test #3:
score: 10
Accepted
time: 0ms
memory: 1256kb
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 #4:
score: 10
Accepted
time: 2ms
memory: 2376kb
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 #5:
score: 10
Accepted
time: 128ms
memory: 12984kb
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 #6:
score: 10
Accepted
time: 46ms
memory: 7092kb
input:
500 500 50 79289095 232165705 955620938 481434262 465576217 112035388 50089892 459799006 181906335 3...
output:
995944328
result:
ok single line: '995944328'
Test #7:
score: 10
Accepted
time: 129ms
memory: 7096kb
input:
500 1000 80 499163842 331022295 940054497 684192083 248823911 842132608 629298697 398526298 98438040...
output:
998299092
result:
ok single line: '998299092'
Test #8:
score: 10
Accepted
time: 254ms
memory: 12992kb
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 #9:
score: 10
Accepted
time: 74ms
memory: 7088kb
input:
500 500 100 65532583 920409544 753795976 989349545 818384831 778207112 425141881 853270293 542112588...
output:
999172505
result:
ok single line: '999172505'
Test #10:
score: 10
Accepted
time: 150ms
memory: 7100kb
input:
500 1000 100 456896744 779471086 578349238 52507342 192194992 156396237 475084995 775765435 96617474...
output:
998801667
result:
ok single line: '998801667'
