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답안 #331581

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
331581 2020-11-29T03:15:49 Z couplefire Arranging Shoes (IOI19_shoes) C++17
100 / 100
 131 ms 73704 KB 
#include<queue>
#include<algorithm>
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const ll inf=1e18;
struct fenwick
{
	ll dat[200010];
	inline void FI(int x,int p)
	{
		for(x++;x<200010;x+=x&-x)
			dat[x]+=p;
		return;
	}
	inline ll FS(int x)
	{
		ll ans=0;
		for(x++;x>0;x=x&x-1)
			ans+=dat[x];
		return ans;
	}
}FT;
queue<int>v[100010];
long long count_swaps(vector<int>s)
{
	ll ans=0;
	int n=s.size()/2;
	int i;
	for(i=0;i<n*2;i++)
	{
		FT.FI(i,1);
		if(s[i]>0)
			v[s[i]].push(i);
	}
	vector<pi>V;
	for(i=0;i<n*2;i++)
	{
		if(s[i]<0)
		{
			int t=v[-s[i]].front();
			v[-s[i]].pop();
			if(i<t)
				V.eb(i,t);
			else
				V.eb(t,i);
		}
	}
	sort(all(V));
	for(i=0;i<n;i++)
	{
		int q=V[i].fi;
		int t=V[i].se;
		if(s[q]>0)
			ans++;
		FT.FI(t,-1);
		ans+=FT.FS(t)-FT.FS(q);
	}
	return ans;
}

Compilation message

shoes.cpp: In member function 'll fenwick::FS(int)':
shoes.cpp:24:20: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   24 |   for(x++;x>0;x=x&x-1)
      |                   ~^~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 67692 KB Output is correct
2 Correct 52 ms 67712 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 67692 KB Output is correct
2 Correct 52 ms 67712 KB Output is correct
3 Correct 53 ms 67692 KB Output is correct
4 Correct 54 ms 67692 KB Output is correct
5 Correct 62 ms 67692 KB Output is correct
6 Correct 53 ms 67692 KB Output is correct
7 Correct 55 ms 67692 KB Output is correct
8 Correct 52 ms 67692 KB Output is correct
9 Correct 56 ms 67692 KB Output is correct
10 Correct 57 ms 67692 KB Output is correct
11 Correct 53 ms 67692 KB Output is correct
12 Correct 61 ms 67692 KB Output is correct
13 Correct 60 ms 67692 KB Output is correct
14 Correct 52 ms 67692 KB Output is correct
15 Correct 56 ms 67840 KB Output is correct
16 Correct 56 ms 67692 KB Output is correct
17 Correct 62 ms 67692 KB Output is correct
18 Correct 53 ms 67692 KB Output is correct
19 Correct 52 ms 67692 KB Output is correct
20 Correct 53 ms 67692 KB Output is correct
21 Correct 53 ms 67820 KB Output is correct
22 Correct 53 ms 67692 KB Output is correct
23 Correct 52 ms 67692 KB Output is correct
24 Correct 54 ms 67692 KB Output is correct
25 Correct 64 ms 67732 KB Output is correct
26 Correct 53 ms 67692 KB Output is correct
27 Correct 55 ms 67692 KB Output is correct
28 Correct 53 ms 67692 KB Output is correct
29 Correct 52 ms 67692 KB Output is correct
30 Correct 52 ms 67692 KB Output is correct
31 Correct 52 ms 67692 KB Output is correct
32 Correct 52 ms 67692 KB Output is correct
33 Correct 55 ms 67692 KB Output is correct
34 Correct 56 ms 67820 KB Output is correct
35 Correct 52 ms 67692 KB Output is correct
36 Correct 53 ms 67820 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 67692 KB Output is correct
2 Correct 52 ms 67712 KB Output is correct
3 Correct 63 ms 67692 KB Output is correct
4 Correct 52 ms 67692 KB Output is correct
5 Correct 53 ms 67692 KB Output is correct
6 Correct 54 ms 67692 KB Output is correct
7 Correct 54 ms 67692 KB Output is correct
8 Correct 52 ms 67692 KB Output is correct
9 Correct 53 ms 67692 KB Output is correct
10 Correct 55 ms 67692 KB Output is correct
11 Correct 54 ms 67692 KB Output is correct
12 Correct 53 ms 67652 KB Output is correct
13 Correct 53 ms 67692 KB Output is correct
14 Correct 53 ms 67692 KB Output is correct
15 Correct 52 ms 67692 KB Output is correct
16 Correct 63 ms 67692 KB Output is correct
17 Correct 53 ms 67692 KB Output is correct
18 Correct 54 ms 67692 KB Output is correct
19 Correct 61 ms 67692 KB Output is correct
20 Correct 57 ms 68332 KB Output is correct
21 Correct 59 ms 68332 KB Output is correct
22 Correct 112 ms 72956 KB Output is correct
23 Correct 102 ms 72808 KB Output is correct
24 Correct 105 ms 72808 KB Output is correct
25 Correct 98 ms 72792 KB Output is correct
26 Correct 103 ms 72808 KB Output is correct
27 Correct 98 ms 72808 KB Output is correct
28 Correct 96 ms 72808 KB Output is correct
29 Correct 96 ms 72936 KB Output is correct
30 Correct 99 ms 72808 KB Output is correct
31 Correct 101 ms 72808 KB Output is correct
32 Correct 96 ms 72808 KB Output is correct
33 Correct 98 ms 72808 KB Output is correct
34 Correct 99 ms 72808 KB Output is correct
35 Correct 57 ms 67692 KB Output is correct
36 Correct 53 ms 67724 KB Output is correct
37 Correct 95 ms 72808 KB Output is correct
38 Correct 99 ms 72936 KB Output is correct
39 Correct 98 ms 72936 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 67692 KB Output is correct
2 Correct 54 ms 67692 KB Output is correct
3 Correct 53 ms 67692 KB Output is correct
4 Correct 53 ms 67692 KB Output is correct
5 Correct 115 ms 72552 KB Output is correct
6 Correct 104 ms 72552 KB Output is correct
7 Correct 115 ms 73192 KB Output is correct
8 Correct 96 ms 73608 KB Output is correct
9 Correct 113 ms 73192 KB Output is correct
10 Correct 113 ms 73192 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 67692 KB Output is correct
2 Correct 52 ms 67712 KB Output is correct
3 Correct 53 ms 67692 KB Output is correct
4 Correct 54 ms 67692 KB Output is correct
5 Correct 62 ms 67692 KB Output is correct
6 Correct 53 ms 67692 KB Output is correct
7 Correct 55 ms 67692 KB Output is correct
8 Correct 52 ms 67692 KB Output is correct
9 Correct 56 ms 67692 KB Output is correct
10 Correct 57 ms 67692 KB Output is correct
11 Correct 53 ms 67692 KB Output is correct
12 Correct 61 ms 67692 KB Output is correct
13 Correct 60 ms 67692 KB Output is correct
14 Correct 52 ms 67692 KB Output is correct
15 Correct 56 ms 67840 KB Output is correct
16 Correct 56 ms 67692 KB Output is correct
17 Correct 62 ms 67692 KB Output is correct
18 Correct 53 ms 67692 KB Output is correct
19 Correct 52 ms 67692 KB Output is correct
20 Correct 53 ms 67692 KB Output is correct
21 Correct 53 ms 67820 KB Output is correct
22 Correct 53 ms 67692 KB Output is correct
23 Correct 52 ms 67692 KB Output is correct
24 Correct 54 ms 67692 KB Output is correct
25 Correct 64 ms 67732 KB Output is correct
26 Correct 53 ms 67692 KB Output is correct
27 Correct 55 ms 67692 KB Output is correct
28 Correct 53 ms 67692 KB Output is correct
29 Correct 52 ms 67692 KB Output is correct
30 Correct 52 ms 67692 KB Output is correct
31 Correct 52 ms 67692 KB Output is correct
32 Correct 52 ms 67692 KB Output is correct
33 Correct 55 ms 67692 KB Output is correct
34 Correct 56 ms 67820 KB Output is correct
35 Correct 52 ms 67692 KB Output is correct
36 Correct 53 ms 67820 KB Output is correct
37 Correct 53 ms 67692 KB Output is correct
38 Correct 52 ms 67692 KB Output is correct
39 Correct 53 ms 67692 KB Output is correct
40 Correct 52 ms 67820 KB Output is correct
41 Correct 56 ms 67692 KB Output is correct
42 Correct 53 ms 67820 KB Output is correct
43 Correct 55 ms 67768 KB Output is correct
44 Correct 55 ms 67692 KB Output is correct
45 Correct 54 ms 67692 KB Output is correct
46 Correct 54 ms 67692 KB Output is correct
47 Correct 53 ms 67692 KB Output is correct
48 Correct 54 ms 67692 KB Output is correct
49 Correct 56 ms 67692 KB Output is correct
50 Correct 54 ms 67692 KB Output is correct
51 Correct 62 ms 67692 KB Output is correct
52 Correct 57 ms 67692 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 51 ms 67692 KB Output is correct
2 Correct 52 ms 67712 KB Output is correct
3 Correct 53 ms 67692 KB Output is correct
4 Correct 54 ms 67692 KB Output is correct
5 Correct 62 ms 67692 KB Output is correct
6 Correct 53 ms 67692 KB Output is correct
7 Correct 55 ms 67692 KB Output is correct
8 Correct 52 ms 67692 KB Output is correct
9 Correct 56 ms 67692 KB Output is correct
10 Correct 57 ms 67692 KB Output is correct
11 Correct 53 ms 67692 KB Output is correct
12 Correct 61 ms 67692 KB Output is correct
13 Correct 60 ms 67692 KB Output is correct
14 Correct 52 ms 67692 KB Output is correct
15 Correct 56 ms 67840 KB Output is correct
16 Correct 56 ms 67692 KB Output is correct
17 Correct 62 ms 67692 KB Output is correct
18 Correct 53 ms 67692 KB Output is correct
19 Correct 52 ms 67692 KB Output is correct
20 Correct 53 ms 67692 KB Output is correct
21 Correct 53 ms 67820 KB Output is correct
22 Correct 53 ms 67692 KB Output is correct
23 Correct 52 ms 67692 KB Output is correct
24 Correct 54 ms 67692 KB Output is correct
25 Correct 64 ms 67732 KB Output is correct
26 Correct 53 ms 67692 KB Output is correct
27 Correct 55 ms 67692 KB Output is correct
28 Correct 53 ms 67692 KB Output is correct
29 Correct 52 ms 67692 KB Output is correct
30 Correct 52 ms 67692 KB Output is correct
31 Correct 52 ms 67692 KB Output is correct
32 Correct 52 ms 67692 KB Output is correct
33 Correct 55 ms 67692 KB Output is correct
34 Correct 56 ms 67820 KB Output is correct
35 Correct 52 ms 67692 KB Output is correct
36 Correct 53 ms 67820 KB Output is correct
37 Correct 63 ms 67692 KB Output is correct
38 Correct 52 ms 67692 KB Output is correct
39 Correct 53 ms 67692 KB Output is correct
40 Correct 54 ms 67692 KB Output is correct
41 Correct 54 ms 67692 KB Output is correct
42 Correct 52 ms 67692 KB Output is correct
43 Correct 53 ms 67692 KB Output is correct
44 Correct 55 ms 67692 KB Output is correct
45 Correct 54 ms 67692 KB Output is correct
46 Correct 53 ms 67652 KB Output is correct
47 Correct 53 ms 67692 KB Output is correct
48 Correct 53 ms 67692 KB Output is correct
49 Correct 52 ms 67692 KB Output is correct
50 Correct 63 ms 67692 KB Output is correct
51 Correct 53 ms 67692 KB Output is correct
52 Correct 54 ms 67692 KB Output is correct
53 Correct 61 ms 67692 KB Output is correct
54 Correct 57 ms 68332 KB Output is correct
55 Correct 59 ms 68332 KB Output is correct
56 Correct 112 ms 72956 KB Output is correct
57 Correct 102 ms 72808 KB Output is correct
58 Correct 105 ms 72808 KB Output is correct
59 Correct 98 ms 72792 KB Output is correct
60 Correct 103 ms 72808 KB Output is correct
61 Correct 98 ms 72808 KB Output is correct
62 Correct 96 ms 72808 KB Output is correct
63 Correct 96 ms 72936 KB Output is correct
64 Correct 99 ms 72808 KB Output is correct
65 Correct 101 ms 72808 KB Output is correct
66 Correct 96 ms 72808 KB Output is correct
67 Correct 98 ms 72808 KB Output is correct
68 Correct 99 ms 72808 KB Output is correct
69 Correct 57 ms 67692 KB Output is correct
70 Correct 53 ms 67724 KB Output is correct
71 Correct 95 ms 72808 KB Output is correct
72 Correct 99 ms 72936 KB Output is correct
73 Correct 98 ms 72936 KB Output is correct
74 Correct 55 ms 67692 KB Output is correct
75 Correct 54 ms 67692 KB Output is correct
76 Correct 53 ms 67692 KB Output is correct
77 Correct 53 ms 67692 KB Output is correct
78 Correct 115 ms 72552 KB Output is correct
79 Correct 104 ms 72552 KB Output is correct
80 Correct 115 ms 73192 KB Output is correct
81 Correct 96 ms 73608 KB Output is correct
82 Correct 113 ms 73192 KB Output is correct
83 Correct 113 ms 73192 KB Output is correct
84 Correct 53 ms 67692 KB Output is correct
85 Correct 52 ms 67692 KB Output is correct
86 Correct 53 ms 67692 KB Output is correct
87 Correct 52 ms 67820 KB Output is correct
88 Correct 56 ms 67692 KB Output is correct
89 Correct 53 ms 67820 KB Output is correct
90 Correct 55 ms 67768 KB Output is correct
91 Correct 55 ms 67692 KB Output is correct
92 Correct 54 ms 67692 KB Output is correct
93 Correct 54 ms 67692 KB Output is correct
94 Correct 53 ms 67692 KB Output is correct
95 Correct 54 ms 67692 KB Output is correct
96 Correct 56 ms 67692 KB Output is correct
97 Correct 54 ms 67692 KB Output is correct
98 Correct 62 ms 67692 KB Output is correct
99 Correct 57 ms 67692 KB Output is correct
100 Correct 53 ms 67692 KB Output is correct
101 Correct 61 ms 68332 KB Output is correct
102 Correct 68 ms 68332 KB Output is correct
103 Correct 129 ms 73192 KB Output is correct
104 Correct 123 ms 73192 KB Output is correct
105 Correct 126 ms 73192 KB Output is correct
106 Correct 116 ms 73192 KB Output is correct
107 Correct 115 ms 73192 KB Output is correct
108 Correct 115 ms 73192 KB Output is correct
109 Correct 98 ms 73580 KB Output is correct
110 Correct 97 ms 73704 KB Output is correct
111 Correct 115 ms 73192 KB Output is correct
112 Correct 131 ms 73192 KB Output is correct
113 Correct 106 ms 73192 KB Output is correct
114 Correct 117 ms 73320 KB Output is correct
115 Correct 116 ms 73192 KB Output is correct