#include "seats.h"
#include<iostream>
#include<algorithm>
using namespace std;
int n,m,k;
int posx[1000001],posy[1000001];
int num[1000001];
int minv[2097152],minc[2097152];
int lazy[2097152];
int a[5];
inline void build(int id,int l,int r){
minc[id]=r-l+1;
if(l==r) return;
int mid=(l+r)/2;
build(id*2,l,mid);
build(id*2+1,mid+1,r);
}
inline void supd(int id,int l,int r,int ll,int rr,int v){
if(l>rr || r<ll) return;
if(ll<=l && r<=rr){
lazy[id]+=v;
minv[id]+=v;
return;
}
int mid=(l+r)/2;
supd(id*2,l,mid,ll,rr,v);
supd(id*2+1,mid+1,r,ll,rr,v);
if(minv[id*2]<minv[id*2+1]) minv[id]=minv[id*2],minc[id]=minc[id*2];
else if(minv[id*2]>minv[id*2+1]) minv[id]=minv[id*2+1],minc[id]=minc[id*2+1];
else minv[id]=minv[id*2],minc[id]=minc[id*2]+minc[id*2+1];
minv[id]+=lazy[id];
}
int get(int x,int y){
if(x<0 || x>=n || y<0 || y>=m) return n*m;
else return num[x*m+y];
}
inline void upd(int x,int y,int v){
if(x==n || y==m) a[0]=k;
else a[0]=num[x*m+y];
if(x==n || y==0) a[1]=k;
else a[1]=num[x*m+y-1];
if(x==0 || y==m) a[2]=k;
else a[2]=num[x*m+y-m];
if(x==0 || y==0) a[3]=k;
else a[3]=num[x*m+y-m-1];
sort(a,a+4);
//cout << "UPD " << x << ' ' << y << ' ' << a[1] << ' ' << a[2] << ' ' << a[3] << ' ' << a[4] << ' ' << v << endl;;
if(a[0]<a[1]) supd(1,0,k-1,a[0],a[1]-1,v);
if(a[2]<a[3]) supd(1,0,k-1,a[2],a[3]-1,v);
}
inline void change(int x,int y,int v){
upd(x,y,-1);
upd(x+1,y,-1);
upd(x,y+1,-1);
upd(x+1,y+1,-1);
num[x*m+y]=v;
upd(x,y,1);
upd(x+1,y,1);
upd(x,y+1,1);
upd(x+1,y+1,1);
}
void give_initial_chart(int H, int W, std::vector<int> R, std::vector<int> C) {
n=H;
m=W;
k=n*m;
build(1,0,k-1);
for(int i=0; i<k ;i++){
posx[i]=R[i];
posy[i]=C[i];
num[posx[i]*m+posy[i]]=i;
}
for(int i=0; i<=n ;i++)
for(int j=0; j<=m ;j++)
upd(i,j,1);
}
int swap_seats(int a, int b) {
change(posx[a],posy[a],b);
change(posx[b],posy[b],a);
swap(posx[a],posx[b]);
swap(posy[a],posy[b]);
return minc[1];//minv must be 4
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
508 KB |
Output is correct |
| 2 |
Correct |
21 ms |
644 KB |
Output is correct |
| 3 |
Correct |
31 ms |
708 KB |
Output is correct |
| 4 |
Correct |
19 ms |
708 KB |
Output is correct |
| 5 |
Correct |
17 ms |
708 KB |
Output is correct |
| 6 |
Correct |
34 ms |
828 KB |
Output is correct |
| 7 |
Correct |
30 ms |
828 KB |
Output is correct |
| 8 |
Correct |
28 ms |
828 KB |
Output is correct |
| 9 |
Correct |
28 ms |
828 KB |
Output is correct |
| 10 |
Correct |
29 ms |
828 KB |
Output is correct |
| 11 |
Correct |
27 ms |
828 KB |
Output is correct |
| 12 |
Correct |
18 ms |
828 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
508 KB |
Output is correct |
| 2 |
Correct |
21 ms |
644 KB |
Output is correct |
| 3 |
Correct |
31 ms |
708 KB |
Output is correct |
| 4 |
Correct |
19 ms |
708 KB |
Output is correct |
| 5 |
Correct |
17 ms |
708 KB |
Output is correct |
| 6 |
Correct |
34 ms |
828 KB |
Output is correct |
| 7 |
Correct |
30 ms |
828 KB |
Output is correct |
| 8 |
Correct |
28 ms |
828 KB |
Output is correct |
| 9 |
Correct |
28 ms |
828 KB |
Output is correct |
| 10 |
Correct |
29 ms |
828 KB |
Output is correct |
| 11 |
Correct |
27 ms |
828 KB |
Output is correct |
| 12 |
Correct |
18 ms |
828 KB |
Output is correct |
| 13 |
Correct |
75 ms |
1296 KB |
Output is correct |
| 14 |
Correct |
84 ms |
1424 KB |
Output is correct |
| 15 |
Correct |
47 ms |
1424 KB |
Output is correct |
| 16 |
Correct |
36 ms |
1424 KB |
Output is correct |
| 17 |
Correct |
58 ms |
1424 KB |
Output is correct |
| 18 |
Correct |
64 ms |
1424 KB |
Output is correct |
| 19 |
Correct |
55 ms |
1424 KB |
Output is correct |
| 20 |
Correct |
46 ms |
1424 KB |
Output is correct |
| 21 |
Correct |
35 ms |
1424 KB |
Output is correct |
| 22 |
Correct |
37 ms |
1424 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2326 ms |
52660 KB |
Output is correct |
| 2 |
Correct |
1229 ms |
52768 KB |
Output is correct |
| 3 |
Correct |
1190 ms |
52776 KB |
Output is correct |
| 4 |
Correct |
993 ms |
52828 KB |
Output is correct |
| 5 |
Correct |
1042 ms |
52880 KB |
Output is correct |
| 6 |
Correct |
929 ms |
52880 KB |
Output is correct |
| 7 |
Correct |
1067 ms |
52880 KB |
Output is correct |
| 8 |
Correct |
1131 ms |
52880 KB |
Output is correct |
| 9 |
Correct |
1168 ms |
52880 KB |
Output is correct |
| 10 |
Correct |
1099 ms |
52880 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
66 ms |
52880 KB |
Output is correct |
| 2 |
Correct |
174 ms |
52880 KB |
Output is correct |
| 3 |
Correct |
983 ms |
52880 KB |
Output is correct |
| 4 |
Correct |
2293 ms |
52880 KB |
Output is correct |
| 5 |
Correct |
874 ms |
52880 KB |
Output is correct |
| 6 |
Correct |
1986 ms |
52880 KB |
Output is correct |
| 7 |
Correct |
985 ms |
52880 KB |
Output is correct |
| 8 |
Correct |
1199 ms |
52880 KB |
Output is correct |
| 9 |
Correct |
1192 ms |
52880 KB |
Output is correct |
| 10 |
Correct |
1079 ms |
52880 KB |
Output is correct |
| 11 |
Correct |
948 ms |
52880 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
46 ms |
52880 KB |
Output is correct |
| 2 |
Correct |
98 ms |
52880 KB |
Output is correct |
| 3 |
Correct |
164 ms |
52880 KB |
Output is correct |
| 4 |
Correct |
223 ms |
52880 KB |
Output is correct |
| 5 |
Correct |
337 ms |
52880 KB |
Output is correct |
| 6 |
Correct |
1418 ms |
52880 KB |
Output is correct |
| 7 |
Correct |
1692 ms |
53052 KB |
Output is correct |
| 8 |
Correct |
1334 ms |
53052 KB |
Output is correct |
| 9 |
Correct |
2864 ms |
53184 KB |
Output is correct |
| 10 |
Correct |
1322 ms |
53184 KB |
Output is correct |
| 11 |
Correct |
1321 ms |
53184 KB |
Output is correct |
| 12 |
Correct |
1236 ms |
53184 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
508 KB |
Output is correct |
| 2 |
Correct |
21 ms |
644 KB |
Output is correct |
| 3 |
Correct |
31 ms |
708 KB |
Output is correct |
| 4 |
Correct |
19 ms |
708 KB |
Output is correct |
| 5 |
Correct |
17 ms |
708 KB |
Output is correct |
| 6 |
Correct |
34 ms |
828 KB |
Output is correct |
| 7 |
Correct |
30 ms |
828 KB |
Output is correct |
| 8 |
Correct |
28 ms |
828 KB |
Output is correct |
| 9 |
Correct |
28 ms |
828 KB |
Output is correct |
| 10 |
Correct |
29 ms |
828 KB |
Output is correct |
| 11 |
Correct |
27 ms |
828 KB |
Output is correct |
| 12 |
Correct |
18 ms |
828 KB |
Output is correct |
| 13 |
Correct |
75 ms |
1296 KB |
Output is correct |
| 14 |
Correct |
84 ms |
1424 KB |
Output is correct |
| 15 |
Correct |
47 ms |
1424 KB |
Output is correct |
| 16 |
Correct |
36 ms |
1424 KB |
Output is correct |
| 17 |
Correct |
58 ms |
1424 KB |
Output is correct |
| 18 |
Correct |
64 ms |
1424 KB |
Output is correct |
| 19 |
Correct |
55 ms |
1424 KB |
Output is correct |
| 20 |
Correct |
46 ms |
1424 KB |
Output is correct |
| 21 |
Correct |
35 ms |
1424 KB |
Output is correct |
| 22 |
Correct |
37 ms |
1424 KB |
Output is correct |
| 23 |
Correct |
2326 ms |
52660 KB |
Output is correct |
| 24 |
Correct |
1229 ms |
52768 KB |
Output is correct |
| 25 |
Correct |
1190 ms |
52776 KB |
Output is correct |
| 26 |
Correct |
993 ms |
52828 KB |
Output is correct |
| 27 |
Correct |
1042 ms |
52880 KB |
Output is correct |
| 28 |
Correct |
929 ms |
52880 KB |
Output is correct |
| 29 |
Correct |
1067 ms |
52880 KB |
Output is correct |
| 30 |
Correct |
1131 ms |
52880 KB |
Output is correct |
| 31 |
Correct |
1168 ms |
52880 KB |
Output is correct |
| 32 |
Correct |
1099 ms |
52880 KB |
Output is correct |
| 33 |
Correct |
66 ms |
52880 KB |
Output is correct |
| 34 |
Correct |
174 ms |
52880 KB |
Output is correct |
| 35 |
Correct |
983 ms |
52880 KB |
Output is correct |
| 36 |
Correct |
2293 ms |
52880 KB |
Output is correct |
| 37 |
Correct |
874 ms |
52880 KB |
Output is correct |
| 38 |
Correct |
1986 ms |
52880 KB |
Output is correct |
| 39 |
Correct |
985 ms |
52880 KB |
Output is correct |
| 40 |
Correct |
1199 ms |
52880 KB |
Output is correct |
| 41 |
Correct |
1192 ms |
52880 KB |
Output is correct |
| 42 |
Correct |
1079 ms |
52880 KB |
Output is correct |
| 43 |
Correct |
948 ms |
52880 KB |
Output is correct |
| 44 |
Correct |
46 ms |
52880 KB |
Output is correct |
| 45 |
Correct |
98 ms |
52880 KB |
Output is correct |
| 46 |
Correct |
164 ms |
52880 KB |
Output is correct |
| 47 |
Correct |
223 ms |
52880 KB |
Output is correct |
| 48 |
Correct |
337 ms |
52880 KB |
Output is correct |
| 49 |
Correct |
1418 ms |
52880 KB |
Output is correct |
| 50 |
Correct |
1692 ms |
53052 KB |
Output is correct |
| 51 |
Correct |
1334 ms |
53052 KB |
Output is correct |
| 52 |
Correct |
2864 ms |
53184 KB |
Output is correct |
| 53 |
Correct |
1322 ms |
53184 KB |
Output is correct |
| 54 |
Correct |
1321 ms |
53184 KB |
Output is correct |
| 55 |
Correct |
1236 ms |
53184 KB |
Output is correct |
| 56 |
Correct |
124 ms |
53184 KB |
Output is correct |
| 57 |
Correct |
294 ms |
53184 KB |
Output is correct |
| 58 |
Correct |
525 ms |
53184 KB |
Output is correct |
| 59 |
Correct |
1897 ms |
53328 KB |
Output is correct |
| 60 |
Correct |
3666 ms |
53328 KB |
Output is correct |
| 61 |
Correct |
1807 ms |
53328 KB |
Output is correct |
| 62 |
Correct |
1386 ms |
53328 KB |
Output is correct |
| 63 |
Correct |
3313 ms |
53328 KB |
Output is correct |
| 64 |
Correct |
2036 ms |
53328 KB |
Output is correct |
| 65 |
Correct |
1849 ms |
53328 KB |
Output is correct |
| 66 |
Correct |
2114 ms |
53328 KB |
Output is correct |
| 67 |
Correct |
2059 ms |
53328 KB |
Output is correct |
| 68 |
Correct |
1546 ms |
53328 KB |
Output is correct |
| 69 |
Correct |
2964 ms |
53328 KB |
Output is correct |
