oj.uz

Submission #211185

# Submission time Handle Problem Language Result Execution time Memory
211185 2020-03-19T11:25:20 Z thomaswang Arranging Shoes (IOI19_shoes) C++14
100 / 100
 305 ms 275812 KB 
#include <bits/stdc++.h>
#define ericxiao cin.tie(0); ios_base::sync_with_stdio(false);
#define endl '\n'
#define int long long
using namespace std;
typedef pair<int,int> pii;
const int maxn=2e5+10;
deque<int> posl[maxn],posr[maxn];
struct BIT{
	int v[maxn],n;
	int lb(int x){return x&(-x);}
	void init(int x){n=x; for(int i=1;i<=n;i++) v[i]=lb(i);}
	void modify(int x,int k){while(x<=n) v[x]+=k,x+=lb(x);}
	int query(int x){int t=0; while(x>0) t+=v[x],x-=lb(x); return t;}
	int get(int l,int r){return query(r+1)-query(l);}
	void del(int x){modify(x+1,-1);}
	void print(){for(int i=0;i<n;i++) cout<<get(i,i)<<' '; cout<<endl;}
} tree;
int count_swaps(vector<signed> v){
	int n=v.size(),ans=0; tree.init(n);
	for(int i=0;i<n;i++){
		if(v[i]>0) posr[v[i]].push_back(i);
		else posl[-v[i]].push_back(i);
	}
	// for(int i=1;i<=n;i++){
	// 	cout<<i<<": "<<endl;
	// 	for(auto &j:posl[i]) cout<<j<<' '; cout<<endl;
	// 	for(auto &j:posr[i]) cout<<j<<' '; cout<<endl;
	// }
	// tree.print();
	for(int i=0;i<n;i++){
		int p=v[i];
		if(p==0) continue;
		if(p>0)
			ans+=tree.get(i,posl[p].front())-1;
		else
			ans+=tree.get(i+1,posr[-p].front())-1;
		tree.del(posl[abs(p)].front()); tree.del(posr[abs(p)].front());
		v[posl[abs(p)].front()]=0; v[posr[abs(p)].front()]=0;
		posl[abs(p)].pop_front(); posr[abs(p)].pop_front();
		// tree.print();
		// for(int j=0;j<n;j++) cout<<v[j]<<' '; cout<<endl;
		// cout<<"ans: "<<ans<<endl;
	}
	return ans;
}
// signed main(){
// 	int n; cin>>n;
// 	vector<int> v(n);
// 	for(int i=0;i<n;i++) cin>>v[i];
// 	cout<<count_swaps(v)<<endl;
// 	return 0;
// }

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 269624 KB Output is correct
2 Correct 184 ms 269564 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 269624 KB Output is correct
2 Correct 184 ms 269564 KB Output is correct
3 Correct 186 ms 269688 KB Output is correct
4 Correct 184 ms 269564 KB Output is correct
5 Correct 187 ms 269560 KB Output is correct
6 Correct 182 ms 269560 KB Output is correct
7 Correct 187 ms 269560 KB Output is correct
8 Correct 179 ms 269560 KB Output is correct
9 Correct 180 ms 269612 KB Output is correct
10 Correct 181 ms 269560 KB Output is correct
11 Correct 182 ms 269664 KB Output is correct
12 Correct 181 ms 269560 KB Output is correct
13 Correct 179 ms 269560 KB Output is correct
14 Correct 190 ms 269560 KB Output is correct
15 Correct 186 ms 269560 KB Output is correct
16 Correct 179 ms 269560 KB Output is correct
17 Correct 189 ms 269560 KB Output is correct
18 Correct 184 ms 269560 KB Output is correct
19 Correct 191 ms 269560 KB Output is correct
20 Correct 180 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 183 ms 269560 KB Output is correct
23 Correct 188 ms 269560 KB Output is correct
24 Correct 181 ms 269572 KB Output is correct
25 Correct 183 ms 269560 KB Output is correct
26 Correct 180 ms 269560 KB Output is correct
27 Correct 187 ms 269588 KB Output is correct
28 Correct 182 ms 269560 KB Output is correct
29 Correct 183 ms 269560 KB Output is correct
30 Correct 186 ms 269560 KB Output is correct
31 Correct 182 ms 269560 KB Output is correct
32 Correct 180 ms 269564 KB Output is correct
33 Correct 181 ms 269560 KB Output is correct
34 Correct 183 ms 269536 KB Output is correct
35 Correct 181 ms 269688 KB Output is correct
36 Correct 187 ms 269560 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 269624 KB Output is correct
2 Correct 184 ms 269564 KB Output is correct
3 Correct 187 ms 269712 KB Output is correct
4 Correct 185 ms 269560 KB Output is correct
5 Correct 183 ms 269688 KB Output is correct
6 Correct 185 ms 269560 KB Output is correct
7 Correct 193 ms 269688 KB Output is correct
8 Correct 181 ms 269560 KB Output is correct
9 Correct 186 ms 269564 KB Output is correct
10 Correct 183 ms 269560 KB Output is correct
11 Correct 186 ms 269560 KB Output is correct
12 Correct 179 ms 269560 KB Output is correct
13 Correct 203 ms 269560 KB Output is correct
14 Correct 184 ms 269560 KB Output is correct
15 Correct 181 ms 269688 KB Output is correct
16 Correct 183 ms 269560 KB Output is correct
17 Correct 179 ms 269560 KB Output is correct
18 Correct 194 ms 269688 KB Output is correct
19 Correct 198 ms 269688 KB Output is correct
20 Correct 203 ms 270072 KB Output is correct
21 Correct 203 ms 270072 KB Output is correct
22 Correct 237 ms 274428 KB Output is correct
23 Correct 237 ms 274424 KB Output is correct
24 Correct 241 ms 274424 KB Output is correct
25 Correct 236 ms 274424 KB Output is correct
26 Correct 242 ms 275772 KB Output is correct
27 Correct 237 ms 275572 KB Output is correct
28 Correct 234 ms 275704 KB Output is correct
29 Correct 233 ms 275704 KB Output is correct
30 Correct 232 ms 275704 KB Output is correct
31 Correct 238 ms 275704 KB Output is correct
32 Correct 233 ms 275812 KB Output is correct
33 Correct 237 ms 275448 KB Output is correct
34 Correct 241 ms 275704 KB Output is correct
35 Correct 187 ms 269560 KB Output is correct
36 Correct 184 ms 269560 KB Output is correct
37 Correct 237 ms 275704 KB Output is correct
38 Correct 236 ms 275704 KB Output is correct
39 Correct 240 ms 275708 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 183 ms 269564 KB Output is correct
2 Correct 185 ms 269560 KB Output is correct
3 Correct 184 ms 269560 KB Output is correct
4 Correct 187 ms 269564 KB Output is correct
5 Correct 283 ms 272736 KB Output is correct
6 Correct 261 ms 274040 KB Output is correct
7 Correct 277 ms 273912 KB Output is correct
8 Correct 233 ms 275704 KB Output is correct
9 Correct 279 ms 274040 KB Output is correct
10 Correct 278 ms 274044 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 269624 KB Output is correct
2 Correct 184 ms 269564 KB Output is correct
3 Correct 186 ms 269688 KB Output is correct
4 Correct 184 ms 269564 KB Output is correct
5 Correct 187 ms 269560 KB Output is correct
6 Correct 182 ms 269560 KB Output is correct
7 Correct 187 ms 269560 KB Output is correct
8 Correct 179 ms 269560 KB Output is correct
9 Correct 180 ms 269612 KB Output is correct
10 Correct 181 ms 269560 KB Output is correct
11 Correct 182 ms 269664 KB Output is correct
12 Correct 181 ms 269560 KB Output is correct
13 Correct 179 ms 269560 KB Output is correct
14 Correct 190 ms 269560 KB Output is correct
15 Correct 186 ms 269560 KB Output is correct
16 Correct 179 ms 269560 KB Output is correct
17 Correct 189 ms 269560 KB Output is correct
18 Correct 184 ms 269560 KB Output is correct
19 Correct 191 ms 269560 KB Output is correct
20 Correct 180 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 183 ms 269560 KB Output is correct
23 Correct 188 ms 269560 KB Output is correct
24 Correct 181 ms 269572 KB Output is correct
25 Correct 183 ms 269560 KB Output is correct
26 Correct 180 ms 269560 KB Output is correct
27 Correct 187 ms 269588 KB Output is correct
28 Correct 182 ms 269560 KB Output is correct
29 Correct 183 ms 269560 KB Output is correct
30 Correct 186 ms 269560 KB Output is correct
31 Correct 182 ms 269560 KB Output is correct
32 Correct 180 ms 269564 KB Output is correct
33 Correct 181 ms 269560 KB Output is correct
34 Correct 183 ms 269536 KB Output is correct
35 Correct 181 ms 269688 KB Output is correct
36 Correct 187 ms 269560 KB Output is correct
37 Correct 182 ms 269688 KB Output is correct
38 Correct 181 ms 269688 KB Output is correct
39 Correct 186 ms 269588 KB Output is correct
40 Correct 183 ms 269560 KB Output is correct
41 Correct 179 ms 269560 KB Output is correct
42 Correct 183 ms 269688 KB Output is correct
43 Correct 180 ms 269688 KB Output is correct
44 Correct 185 ms 269560 KB Output is correct
45 Correct 182 ms 269560 KB Output is correct
46 Correct 190 ms 269688 KB Output is correct
47 Correct 186 ms 269688 KB Output is correct
48 Correct 186 ms 269688 KB Output is correct
49 Correct 183 ms 269560 KB Output is correct
50 Correct 204 ms 269688 KB Output is correct
51 Correct 200 ms 269816 KB Output is correct
52 Correct 182 ms 269688 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 188 ms 269624 KB Output is correct
2 Correct 184 ms 269564 KB Output is correct
3 Correct 186 ms 269688 KB Output is correct
4 Correct 184 ms 269564 KB Output is correct
5 Correct 187 ms 269560 KB Output is correct
6 Correct 182 ms 269560 KB Output is correct
7 Correct 187 ms 269560 KB Output is correct
8 Correct 179 ms 269560 KB Output is correct
9 Correct 180 ms 269612 KB Output is correct
10 Correct 181 ms 269560 KB Output is correct
11 Correct 182 ms 269664 KB Output is correct
12 Correct 181 ms 269560 KB Output is correct
13 Correct 179 ms 269560 KB Output is correct
14 Correct 190 ms 269560 KB Output is correct
15 Correct 186 ms 269560 KB Output is correct
16 Correct 179 ms 269560 KB Output is correct
17 Correct 189 ms 269560 KB Output is correct
18 Correct 184 ms 269560 KB Output is correct
19 Correct 191 ms 269560 KB Output is correct
20 Correct 180 ms 269560 KB Output is correct
21 Correct 193 ms 269560 KB Output is correct
22 Correct 183 ms 269560 KB Output is correct
23 Correct 188 ms 269560 KB Output is correct
24 Correct 181 ms 269572 KB Output is correct
25 Correct 183 ms 269560 KB Output is correct
26 Correct 180 ms 269560 KB Output is correct
27 Correct 187 ms 269588 KB Output is correct
28 Correct 182 ms 269560 KB Output is correct
29 Correct 183 ms 269560 KB Output is correct
30 Correct 186 ms 269560 KB Output is correct
31 Correct 182 ms 269560 KB Output is correct
32 Correct 180 ms 269564 KB Output is correct
33 Correct 181 ms 269560 KB Output is correct
34 Correct 183 ms 269536 KB Output is correct
35 Correct 181 ms 269688 KB Output is correct
36 Correct 187 ms 269560 KB Output is correct
37 Correct 187 ms 269712 KB Output is correct
38 Correct 185 ms 269560 KB Output is correct
39 Correct 183 ms 269688 KB Output is correct
40 Correct 185 ms 269560 KB Output is correct
41 Correct 193 ms 269688 KB Output is correct
42 Correct 181 ms 269560 KB Output is correct
43 Correct 186 ms 269564 KB Output is correct
44 Correct 183 ms 269560 KB Output is correct
45 Correct 186 ms 269560 KB Output is correct
46 Correct 179 ms 269560 KB Output is correct
47 Correct 203 ms 269560 KB Output is correct
48 Correct 184 ms 269560 KB Output is correct
49 Correct 181 ms 269688 KB Output is correct
50 Correct 183 ms 269560 KB Output is correct
51 Correct 179 ms 269560 KB Output is correct
52 Correct 194 ms 269688 KB Output is correct
53 Correct 198 ms 269688 KB Output is correct
54 Correct 203 ms 270072 KB Output is correct
55 Correct 203 ms 270072 KB Output is correct
56 Correct 237 ms 274428 KB Output is correct
57 Correct 237 ms 274424 KB Output is correct
58 Correct 241 ms 274424 KB Output is correct
59 Correct 236 ms 274424 KB Output is correct
60 Correct 242 ms 275772 KB Output is correct
61 Correct 237 ms 275572 KB Output is correct
62 Correct 234 ms 275704 KB Output is correct
63 Correct 233 ms 275704 KB Output is correct
64 Correct 232 ms 275704 KB Output is correct
65 Correct 238 ms 275704 KB Output is correct
66 Correct 233 ms 275812 KB Output is correct
67 Correct 237 ms 275448 KB Output is correct
68 Correct 241 ms 275704 KB Output is correct
69 Correct 187 ms 269560 KB Output is correct
70 Correct 184 ms 269560 KB Output is correct
71 Correct 237 ms 275704 KB Output is correct
72 Correct 236 ms 275704 KB Output is correct
73 Correct 240 ms 275708 KB Output is correct
74 Correct 183 ms 269564 KB Output is correct
75 Correct 185 ms 269560 KB Output is correct
76 Correct 184 ms 269560 KB Output is correct
77 Correct 187 ms 269564 KB Output is correct
78 Correct 283 ms 272736 KB Output is correct
79 Correct 261 ms 274040 KB Output is correct
80 Correct 277 ms 273912 KB Output is correct
81 Correct 233 ms 275704 KB Output is correct
82 Correct 279 ms 274040 KB Output is correct
83 Correct 278 ms 274044 KB Output is correct
84 Correct 182 ms 269688 KB Output is correct
85 Correct 181 ms 269688 KB Output is correct
86 Correct 186 ms 269588 KB Output is correct
87 Correct 183 ms 269560 KB Output is correct
88 Correct 179 ms 269560 KB Output is correct
89 Correct 183 ms 269688 KB Output is correct
90 Correct 180 ms 269688 KB Output is correct
91 Correct 185 ms 269560 KB Output is correct
92 Correct 182 ms 269560 KB Output is correct
93 Correct 190 ms 269688 KB Output is correct
94 Correct 186 ms 269688 KB Output is correct
95 Correct 186 ms 269688 KB Output is correct
96 Correct 183 ms 269560 KB Output is correct
97 Correct 204 ms 269688 KB Output is correct
98 Correct 200 ms 269816 KB Output is correct
99 Correct 182 ms 269688 KB Output is correct
100 Correct 187 ms 269688 KB Output is correct
101 Correct 188 ms 270072 KB Output is correct
102 Correct 187 ms 270072 KB Output is correct
103 Correct 297 ms 274040 KB Output is correct
104 Correct 288 ms 274128 KB Output is correct
105 Correct 286 ms 274040 KB Output is correct
106 Correct 302 ms 274040 KB Output is correct
107 Correct 265 ms 274008 KB Output is correct
108 Correct 283 ms 274168 KB Output is correct
109 Correct 239 ms 275704 KB Output is correct
110 Correct 238 ms 275704 KB Output is correct
111 Correct 288 ms 273912 KB Output is correct
112 Correct 305 ms 274168 KB Output is correct
113 Correct 259 ms 274144 KB Output is correct
114 Correct 295 ms 274040 KB Output is correct
115 Correct 302 ms 274168 KB Output is correct