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Submission #299024

# Submission time Handle Problem Language Result Execution time Memory
299024 2020-09-14T12:19:09 Z REALITYNB Arranging Shoes (IOI19_shoes) C++14
100 / 100
 184 ms 42616 KB 
#include <bits/stdc++.h> 
using namespace std; 
const int mxn = 5e5 ; 
vector<int> ft(mxn) ; 
void update(int i ){
	for(;i<mxn;i+=(i&-i)) ft[i]++ ; 
}
int query(int i ){
	int ans = 0 ; 
	for(;i>0;i-=(i&-i)) ans+=ft[i] ; 
	return ans ; 
}
long long count_swaps(vector<int> a){
#define int long long 
	int n = a.size() ;
	int ans = 0  ; 
	set<int> adj[n*3] ; 
	for(int i=0;i<n;i++) adj[a[i]+n].insert(i) ;  
	for(int i=0;i<n;i++){
		if(a[i]==0) continue ; 
	//	cout <<a[i] << " " ; 
		int oth = a[i]*-1 ; 
		oth+=n ; 
		a[i]+=n ; 
		adj[a[i]].erase(i) ; 
		int j = *(adj[oth].begin()) ; 
		adj[oth].erase(adj[oth].begin()) ; 
		int ze = query(j+1)-query(i+1) ; 
		a[i]-=n ; 
		ans+=j-i-(a[i]<0)-ze ;
		a[i]=0 ; 
		a[j]= 0 ; 
		update(1+i) ; 
		update(j+1) ; 
	}
//	cout << ans ; 
	return ans ; 
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct
3 Correct 2 ms 2304 KB Output is correct
4 Correct 2 ms 2304 KB Output is correct
5 Correct 2 ms 2304 KB Output is correct
6 Correct 2 ms 2304 KB Output is correct
7 Correct 2 ms 2304 KB Output is correct
8 Correct 2 ms 2304 KB Output is correct
9 Correct 2 ms 2304 KB Output is correct
10 Correct 2 ms 2304 KB Output is correct
11 Correct 2 ms 2304 KB Output is correct
12 Correct 2 ms 2304 KB Output is correct
13 Correct 2 ms 2304 KB Output is correct
14 Correct 2 ms 2304 KB Output is correct
15 Correct 2 ms 2304 KB Output is correct
16 Correct 2 ms 2304 KB Output is correct
17 Correct 2 ms 2304 KB Output is correct
18 Correct 2 ms 2304 KB Output is correct
19 Correct 2 ms 2304 KB Output is correct
20 Correct 2 ms 2304 KB Output is correct
21 Correct 2 ms 2304 KB Output is correct
22 Correct 2 ms 2304 KB Output is correct
23 Correct 2 ms 2304 KB Output is correct
24 Correct 2 ms 2304 KB Output is correct
25 Correct 2 ms 2304 KB Output is correct
26 Correct 2 ms 2304 KB Output is correct
27 Correct 2 ms 2304 KB Output is correct
28 Correct 2 ms 2304 KB Output is correct
29 Correct 2 ms 2304 KB Output is correct
30 Correct 2 ms 2304 KB Output is correct
31 Correct 2 ms 2304 KB Output is correct
32 Correct 2 ms 2304 KB Output is correct
33 Correct 2 ms 2304 KB Output is correct
34 Correct 2 ms 2304 KB Output is correct
35 Correct 2 ms 2304 KB Output is correct
36 Correct 2 ms 2304 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct
3 Correct 2 ms 2304 KB Output is correct
4 Correct 2 ms 2304 KB Output is correct
5 Correct 2 ms 2304 KB Output is correct
6 Correct 2 ms 2304 KB Output is correct
7 Correct 2 ms 2304 KB Output is correct
8 Correct 2 ms 2304 KB Output is correct
9 Correct 2 ms 2304 KB Output is correct
10 Correct 2 ms 2304 KB Output is correct
11 Correct 2 ms 2304 KB Output is correct
12 Correct 2 ms 2304 KB Output is correct
13 Correct 2 ms 2304 KB Output is correct
14 Correct 2 ms 2304 KB Output is correct
15 Correct 2 ms 2304 KB Output is correct
16 Correct 3 ms 2304 KB Output is correct
17 Correct 2 ms 2432 KB Output is correct
18 Correct 3 ms 2688 KB Output is correct
19 Correct 3 ms 2688 KB Output is correct
20 Correct 13 ms 6272 KB Output is correct
21 Correct 11 ms 6272 KB Output is correct
22 Correct 104 ms 41720 KB Output is correct
23 Correct 111 ms 41464 KB Output is correct
24 Correct 101 ms 41592 KB Output is correct
25 Correct 125 ms 41464 KB Output is correct
26 Correct 118 ms 42616 KB Output is correct
27 Correct 113 ms 42488 KB Output is correct
28 Correct 121 ms 42616 KB Output is correct
29 Correct 113 ms 42488 KB Output is correct
30 Correct 118 ms 42616 KB Output is correct
31 Correct 116 ms 42616 KB Output is correct
32 Correct 119 ms 42616 KB Output is correct
33 Correct 115 ms 42612 KB Output is correct
34 Correct 120 ms 42616 KB Output is correct
35 Correct 2 ms 2304 KB Output is correct
36 Correct 2 ms 2304 KB Output is correct
37 Correct 113 ms 42616 KB Output is correct
38 Correct 112 ms 42616 KB Output is correct
39 Correct 118 ms 42616 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct
3 Correct 3 ms 2304 KB Output is correct
4 Correct 2 ms 2304 KB Output is correct
5 Correct 131 ms 41592 KB Output is correct
6 Correct 181 ms 42616 KB Output is correct
7 Correct 121 ms 42616 KB Output is correct
8 Correct 106 ms 42616 KB Output is correct
9 Correct 115 ms 42604 KB Output is correct
10 Correct 139 ms 42616 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct
3 Correct 2 ms 2304 KB Output is correct
4 Correct 2 ms 2304 KB Output is correct
5 Correct 2 ms 2304 KB Output is correct
6 Correct 2 ms 2304 KB Output is correct
7 Correct 2 ms 2304 KB Output is correct
8 Correct 2 ms 2304 KB Output is correct
9 Correct 2 ms 2304 KB Output is correct
10 Correct 2 ms 2304 KB Output is correct
11 Correct 2 ms 2304 KB Output is correct
12 Correct 2 ms 2304 KB Output is correct
13 Correct 2 ms 2304 KB Output is correct
14 Correct 2 ms 2304 KB Output is correct
15 Correct 2 ms 2304 KB Output is correct
16 Correct 2 ms 2304 KB Output is correct
17 Correct 2 ms 2304 KB Output is correct
18 Correct 2 ms 2304 KB Output is correct
19 Correct 2 ms 2304 KB Output is correct
20 Correct 2 ms 2304 KB Output is correct
21 Correct 2 ms 2304 KB Output is correct
22 Correct 2 ms 2304 KB Output is correct
23 Correct 2 ms 2304 KB Output is correct
24 Correct 2 ms 2304 KB Output is correct
25 Correct 2 ms 2304 KB Output is correct
26 Correct 2 ms 2304 KB Output is correct
27 Correct 2 ms 2304 KB Output is correct
28 Correct 2 ms 2304 KB Output is correct
29 Correct 2 ms 2304 KB Output is correct
30 Correct 2 ms 2304 KB Output is correct
31 Correct 2 ms 2304 KB Output is correct
32 Correct 2 ms 2304 KB Output is correct
33 Correct 2 ms 2304 KB Output is correct
34 Correct 2 ms 2304 KB Output is correct
35 Correct 2 ms 2304 KB Output is correct
36 Correct 2 ms 2304 KB Output is correct
37 Correct 2 ms 2304 KB Output is correct
38 Correct 2 ms 2304 KB Output is correct
39 Correct 2 ms 2304 KB Output is correct
40 Correct 2 ms 2432 KB Output is correct
41 Correct 3 ms 2688 KB Output is correct
42 Correct 2 ms 2688 KB Output is correct
43 Correct 2 ms 2688 KB Output is correct
44 Correct 2 ms 2688 KB Output is correct
45 Correct 2 ms 2688 KB Output is correct
46 Correct 2 ms 2688 KB Output is correct
47 Correct 3 ms 2688 KB Output is correct
48 Correct 3 ms 2688 KB Output is correct
49 Correct 3 ms 2688 KB Output is correct
50 Correct 3 ms 2688 KB Output is correct
51 Correct 2 ms 2688 KB Output is correct
52 Correct 2 ms 2688 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2304 KB Output is correct
2 Correct 2 ms 2304 KB Output is correct
3 Correct 2 ms 2304 KB Output is correct
4 Correct 2 ms 2304 KB Output is correct
5 Correct 2 ms 2304 KB Output is correct
6 Correct 2 ms 2304 KB Output is correct
7 Correct 2 ms 2304 KB Output is correct
8 Correct 2 ms 2304 KB Output is correct
9 Correct 2 ms 2304 KB Output is correct
10 Correct 2 ms 2304 KB Output is correct
11 Correct 2 ms 2304 KB Output is correct
12 Correct 2 ms 2304 KB Output is correct
13 Correct 2 ms 2304 KB Output is correct
14 Correct 2 ms 2304 KB Output is correct
15 Correct 2 ms 2304 KB Output is correct
16 Correct 2 ms 2304 KB Output is correct
17 Correct 2 ms 2304 KB Output is correct
18 Correct 2 ms 2304 KB Output is correct
19 Correct 2 ms 2304 KB Output is correct
20 Correct 2 ms 2304 KB Output is correct
21 Correct 2 ms 2304 KB Output is correct
22 Correct 2 ms 2304 KB Output is correct
23 Correct 2 ms 2304 KB Output is correct
24 Correct 2 ms 2304 KB Output is correct
25 Correct 2 ms 2304 KB Output is correct
26 Correct 2 ms 2304 KB Output is correct
27 Correct 2 ms 2304 KB Output is correct
28 Correct 2 ms 2304 KB Output is correct
29 Correct 2 ms 2304 KB Output is correct
30 Correct 2 ms 2304 KB Output is correct
31 Correct 2 ms 2304 KB Output is correct
32 Correct 2 ms 2304 KB Output is correct
33 Correct 2 ms 2304 KB Output is correct
34 Correct 2 ms 2304 KB Output is correct
35 Correct 2 ms 2304 KB Output is correct
36 Correct 2 ms 2304 KB Output is correct
37 Correct 2 ms 2304 KB Output is correct
38 Correct 2 ms 2304 KB Output is correct
39 Correct 2 ms 2304 KB Output is correct
40 Correct 2 ms 2304 KB Output is correct
41 Correct 2 ms 2304 KB Output is correct
42 Correct 2 ms 2304 KB Output is correct
43 Correct 2 ms 2304 KB Output is correct
44 Correct 2 ms 2304 KB Output is correct
45 Correct 2 ms 2304 KB Output is correct
46 Correct 2 ms 2304 KB Output is correct
47 Correct 2 ms 2304 KB Output is correct
48 Correct 2 ms 2304 KB Output is correct
49 Correct 2 ms 2304 KB Output is correct
50 Correct 3 ms 2304 KB Output is correct
51 Correct 2 ms 2432 KB Output is correct
52 Correct 3 ms 2688 KB Output is correct
53 Correct 3 ms 2688 KB Output is correct
54 Correct 13 ms 6272 KB Output is correct
55 Correct 11 ms 6272 KB Output is correct
56 Correct 104 ms 41720 KB Output is correct
57 Correct 111 ms 41464 KB Output is correct
58 Correct 101 ms 41592 KB Output is correct
59 Correct 125 ms 41464 KB Output is correct
60 Correct 118 ms 42616 KB Output is correct
61 Correct 113 ms 42488 KB Output is correct
62 Correct 121 ms 42616 KB Output is correct
63 Correct 113 ms 42488 KB Output is correct
64 Correct 118 ms 42616 KB Output is correct
65 Correct 116 ms 42616 KB Output is correct
66 Correct 119 ms 42616 KB Output is correct
67 Correct 115 ms 42612 KB Output is correct
68 Correct 120 ms 42616 KB Output is correct
69 Correct 2 ms 2304 KB Output is correct
70 Correct 2 ms 2304 KB Output is correct
71 Correct 113 ms 42616 KB Output is correct
72 Correct 112 ms 42616 KB Output is correct
73 Correct 118 ms 42616 KB Output is correct
74 Correct 2 ms 2304 KB Output is correct
75 Correct 2 ms 2304 KB Output is correct
76 Correct 3 ms 2304 KB Output is correct
77 Correct 2 ms 2304 KB Output is correct
78 Correct 131 ms 41592 KB Output is correct
79 Correct 181 ms 42616 KB Output is correct
80 Correct 121 ms 42616 KB Output is correct
81 Correct 106 ms 42616 KB Output is correct
82 Correct 115 ms 42604 KB Output is correct
83 Correct 139 ms 42616 KB Output is correct
84 Correct 2 ms 2304 KB Output is correct
85 Correct 2 ms 2304 KB Output is correct
86 Correct 2 ms 2304 KB Output is correct
87 Correct 2 ms 2432 KB Output is correct
88 Correct 3 ms 2688 KB Output is correct
89 Correct 2 ms 2688 KB Output is correct
90 Correct 2 ms 2688 KB Output is correct
91 Correct 2 ms 2688 KB Output is correct
92 Correct 2 ms 2688 KB Output is correct
93 Correct 2 ms 2688 KB Output is correct
94 Correct 3 ms 2688 KB Output is correct
95 Correct 3 ms 2688 KB Output is correct
96 Correct 3 ms 2688 KB Output is correct
97 Correct 3 ms 2688 KB Output is correct
98 Correct 2 ms 2688 KB Output is correct
99 Correct 2 ms 2688 KB Output is correct
100 Correct 3 ms 2688 KB Output is correct
101 Correct 11 ms 6272 KB Output is correct
102 Correct 12 ms 6272 KB Output is correct
103 Correct 145 ms 42360 KB Output is correct
104 Correct 124 ms 42360 KB Output is correct
105 Correct 154 ms 42360 KB Output is correct
106 Correct 116 ms 42360 KB Output is correct
107 Correct 177 ms 42488 KB Output is correct
108 Correct 151 ms 42284 KB Output is correct
109 Correct 101 ms 42412 KB Output is correct
110 Correct 112 ms 42360 KB Output is correct
111 Correct 125 ms 42488 KB Output is correct
112 Correct 146 ms 42396 KB Output is correct
113 Correct 184 ms 42360 KB Output is correct
114 Correct 115 ms 42232 KB Output is correct
115 Correct 115 ms 42360 KB Output is correct