oj.uz

Submission #75258

# Submission time Handle Problem Language Result Execution time Memory
75258 2018-09-09T03:11:16 Z jangwonyoung Seats (IOI18_seats) C++14
100 / 100
 3714 ms 103612 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#include "seats.h"
#include<iostream>
#include<algorithm>
using namespace std;
int n,m,k;
int posx[1000001],posy[1000001];
vector<vector<int> >num;
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);
	int lc=id*2,rc=id*2+1;
	if(minv[lc]<minv[rc]) minv[id]=minv[lc],minc[id]=minc[lc];
	else if(minv[lc]>minv[rc]) minv[id]=minv[rc],minc[id]=minc[rc];
	else minv[id]=minv[lc],minc[id]=minc[lc]+minc[rc];
	minv[id]+=lazy[id];
}
inline void upd(int x,int y,int v){
	a[0]=num[x][y];
	a[1]=num[x][y-1];
	a[2]=num[x-1][y];
	a[3]=num[x-1][y-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][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;
	n+=2;
	m+=2;
	num.resize(n);
	for(int i=0; i<n ;i++){
		num[i].resize(m);
		num[i][0]=num[i][m-1]=k;
	}
	for(int i=0; i<m ;i++){
		num[0][i]=num[n-1][i]=k;
	}
	build(1,0,k-1);
	for(int i=0; i<k ;i++){
		R[i]++;
		C[i]++;
		posx[i]=R[i];
		posy[i]=C[i];
		num[posx[i]][posy[i]]=i;
	}
	for(int i=1; i<n ;i++)
		for(int j=1; 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
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 504 KB Output is correct
2 Correct 23 ms 580 KB Output is correct
3 Correct 35 ms 704 KB Output is correct
4 Correct 18 ms 704 KB Output is correct
5 Correct 16 ms 704 KB Output is correct
6 Correct 28 ms 704 KB Output is correct
7 Correct 30 ms 704 KB Output is correct
8 Correct 31 ms 820 KB Output is correct
9 Correct 32 ms 820 KB Output is correct
10 Correct 30 ms 820 KB Output is correct
11 Correct 27 ms 868 KB Output is correct
12 Correct 18 ms 868 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 504 KB Output is correct
2 Correct 23 ms 580 KB Output is correct
3 Correct 35 ms 704 KB Output is correct
4 Correct 18 ms 704 KB Output is correct
5 Correct 16 ms 704 KB Output is correct
6 Correct 28 ms 704 KB Output is correct
7 Correct 30 ms 704 KB Output is correct
8 Correct 31 ms 820 KB Output is correct
9 Correct 32 ms 820 KB Output is correct
10 Correct 30 ms 820 KB Output is correct
11 Correct 27 ms 868 KB Output is correct
12 Correct 18 ms 868 KB Output is correct
13 Correct 95 ms 1284 KB Output is correct
14 Correct 87 ms 1296 KB Output is correct
15 Correct 44 ms 1412 KB Output is correct
16 Correct 37 ms 1796 KB Output is correct
17 Correct 58 ms 1796 KB Output is correct
18 Correct 64 ms 1796 KB Output is correct
19 Correct 57 ms 1796 KB Output is correct
20 Correct 46 ms 1796 KB Output is correct
21 Correct 36 ms 1796 KB Output is correct
22 Correct 39 ms 1852 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2406 ms 52796 KB Output is correct
2 Correct 1257 ms 52824 KB Output is correct
3 Correct 1217 ms 52956 KB Output is correct
4 Correct 950 ms 52956 KB Output is correct
5 Correct 1040 ms 52956 KB Output is correct
6 Correct 973 ms 53084 KB Output is correct
7 Correct 1103 ms 53084 KB Output is correct
8 Correct 1195 ms 53084 KB Output is correct
9 Correct 1141 ms 53084 KB Output is correct
10 Correct 1140 ms 53084 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 53084 KB Output is correct
2 Correct 178 ms 53084 KB Output is correct
3 Correct 1048 ms 53084 KB Output is correct
4 Correct 2352 ms 53084 KB Output is correct
5 Correct 867 ms 58648 KB Output is correct
6 Correct 2311 ms 103612 KB Output is correct
7 Correct 1096 ms 103612 KB Output is correct
8 Correct 1210 ms 103612 KB Output is correct
9 Correct 1199 ms 103612 KB Output is correct
10 Correct 1118 ms 103612 KB Output is correct
11 Correct 1040 ms 103612 KB Output is correct

Subtask #5
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 103612 KB Output is correct
2 Correct 116 ms 103612 KB Output is correct
3 Correct 165 ms 103612 KB Output is correct
4 Correct 221 ms 103612 KB Output is correct
5 Correct 338 ms 103612 KB Output is correct
6 Correct 1421 ms 103612 KB Output is correct
7 Correct 1655 ms 103612 KB Output is correct
8 Correct 1304 ms 103612 KB Output is correct
9 Correct 2821 ms 103612 KB Output is correct
10 Correct 1326 ms 103612 KB Output is correct
11 Correct 1337 ms 103612 KB Output is correct
12 Correct 1272 ms 103612 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 504 KB Output is correct
2 Correct 23 ms 580 KB Output is correct
3 Correct 35 ms 704 KB Output is correct
4 Correct 18 ms 704 KB Output is correct
5 Correct 16 ms 704 KB Output is correct
6 Correct 28 ms 704 KB Output is correct
7 Correct 30 ms 704 KB Output is correct
8 Correct 31 ms 820 KB Output is correct
9 Correct 32 ms 820 KB Output is correct
10 Correct 30 ms 820 KB Output is correct
11 Correct 27 ms 868 KB Output is correct
12 Correct 18 ms 868 KB Output is correct
13 Correct 95 ms 1284 KB Output is correct
14 Correct 87 ms 1296 KB Output is correct
15 Correct 44 ms 1412 KB Output is correct
16 Correct 37 ms 1796 KB Output is correct
17 Correct 58 ms 1796 KB Output is correct
18 Correct 64 ms 1796 KB Output is correct
19 Correct 57 ms 1796 KB Output is correct
20 Correct 46 ms 1796 KB Output is correct
21 Correct 36 ms 1796 KB Output is correct
22 Correct 39 ms 1852 KB Output is correct
23 Correct 2406 ms 52796 KB Output is correct
24 Correct 1257 ms 52824 KB Output is correct
25 Correct 1217 ms 52956 KB Output is correct
26 Correct 950 ms 52956 KB Output is correct
27 Correct 1040 ms 52956 KB Output is correct
28 Correct 973 ms 53084 KB Output is correct
29 Correct 1103 ms 53084 KB Output is correct
30 Correct 1195 ms 53084 KB Output is correct
31 Correct 1141 ms 53084 KB Output is correct
32 Correct 1140 ms 53084 KB Output is correct
33 Correct 72 ms 53084 KB Output is correct
34 Correct 178 ms 53084 KB Output is correct
35 Correct 1048 ms 53084 KB Output is correct
36 Correct 2352 ms 53084 KB Output is correct
37 Correct 867 ms 58648 KB Output is correct
38 Correct 2311 ms 103612 KB Output is correct
39 Correct 1096 ms 103612 KB Output is correct
40 Correct 1210 ms 103612 KB Output is correct
41 Correct 1199 ms 103612 KB Output is correct
42 Correct 1118 ms 103612 KB Output is correct
43 Correct 1040 ms 103612 KB Output is correct
44 Correct 45 ms 103612 KB Output is correct
45 Correct 116 ms 103612 KB Output is correct
46 Correct 165 ms 103612 KB Output is correct
47 Correct 221 ms 103612 KB Output is correct
48 Correct 338 ms 103612 KB Output is correct
49 Correct 1421 ms 103612 KB Output is correct
50 Correct 1655 ms 103612 KB Output is correct
51 Correct 1304 ms 103612 KB Output is correct
52 Correct 2821 ms 103612 KB Output is correct
53 Correct 1326 ms 103612 KB Output is correct
54 Correct 1337 ms 103612 KB Output is correct
55 Correct 1272 ms 103612 KB Output is correct
56 Correct 136 ms 103612 KB Output is correct
57 Correct 317 ms 103612 KB Output is correct
58 Correct 588 ms 103612 KB Output is correct
59 Correct 1981 ms 103612 KB Output is correct
60 Correct 3714 ms 103612 KB Output is correct
61 Correct 1928 ms 103612 KB Output is correct
62 Correct 1437 ms 103612 KB Output is correct
63 Correct 3409 ms 103612 KB Output is correct
64 Correct 2144 ms 103612 KB Output is correct
65 Correct 1976 ms 103612 KB Output is correct
66 Correct 2136 ms 103612 KB Output is correct
67 Correct 2101 ms 103612 KB Output is correct
68 Correct 1611 ms 103612 KB Output is correct
69 Correct 3217 ms 103612 KB Output is correct