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Submission #544135

# Submission time Handle Problem Language Result Execution time Memory
544135 2022-04-01T06:31:40 Z krit3379 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 71 ms 20336 KB 
#include<bits/stdc++.h>
using namespace std;
#define N 400005

int fen[N],cnt[N];
long long ans;
vector<int> v[N];
bitset<N> vis;

void update(int x,int k){
    while(x<N){
        fen[x]+=k;
        x+=x&-x;
    }
}

int sol(int x){
    int ans=0;
    while(x){
        ans+=fen[x];
        x-=x&-x;
    }
    return ans;
}

long long count_swaps(vector<int> s){
    int n,i,now,nxt,pos;
    n=s.size();
    s.insert(s.begin(),0);
    for(i=1;i<=n;i++)fen[i]=i&-i;
    for(i=1;i<=n;i++)v[(s[i]>0)?s[i]:-s[i]+n].push_back(i);
    for(i=1;i<=n;i++){
        if(vis[i])continue;
        if(s[i]>0)now=s[i],nxt=s[i]+n;
        else now=-s[i]+n,nxt=-s[i];
        cnt[now]++;
        pos=v[nxt][cnt[nxt]++];
        ans+=sol(pos)-sol(i);
        if(s[i]<0)ans--;
        update(i,1);
        update(pos,-1);
        vis[i]=vis[pos]=true;
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9716 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9716 KB Output is correct
3 Correct 5 ms 9752 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9728 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 5 ms 9736 KB Output is correct
9 Correct 5 ms 9700 KB Output is correct
10 Correct 7 ms 9688 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9652 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9704 KB Output is correct
16 Correct 6 ms 9704 KB Output is correct
17 Correct 5 ms 9708 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9708 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 7 ms 9684 KB Output is correct
23 Correct 5 ms 9712 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 6 ms 9704 KB Output is correct
26 Correct 5 ms 9708 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9680 KB Output is correct
33 Correct 6 ms 9684 KB Output is correct
34 Correct 5 ms 9684 KB Output is correct
35 Correct 6 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9716 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 6 ms 9684 KB Output is correct
5 Correct 5 ms 9708 KB Output is correct
6 Correct 5 ms 9684 KB Output is correct
7 Correct 5 ms 9708 KB Output is correct
8 Correct 5 ms 9708 KB Output is correct
9 Correct 5 ms 9684 KB Output is correct
10 Correct 5 ms 9704 KB Output is correct
11 Correct 6 ms 9656 KB Output is correct
12 Correct 5 ms 9684 KB Output is correct
13 Correct 5 ms 9708 KB Output is correct
14 Correct 5 ms 9704 KB Output is correct
15 Correct 6 ms 9684 KB Output is correct
16 Correct 5 ms 9684 KB Output is correct
17 Correct 6 ms 9684 KB Output is correct
18 Correct 6 ms 9684 KB Output is correct
19 Correct 6 ms 9720 KB Output is correct
20 Correct 8 ms 10244 KB Output is correct
21 Correct 9 ms 10232 KB Output is correct
22 Correct 34 ms 14012 KB Output is correct
23 Correct 33 ms 14548 KB Output is correct
24 Correct 35 ms 14796 KB Output is correct
25 Correct 31 ms 14396 KB Output is correct
26 Correct 35 ms 14652 KB Output is correct
27 Correct 32 ms 14356 KB Output is correct
28 Correct 34 ms 14652 KB Output is correct
29 Correct 33 ms 14660 KB Output is correct
30 Correct 32 ms 14784 KB Output is correct
31 Correct 35 ms 14556 KB Output is correct
32 Correct 32 ms 14556 KB Output is correct
33 Correct 34 ms 14428 KB Output is correct
34 Correct 31 ms 14672 KB Output is correct
35 Correct 5 ms 9732 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 31 ms 14652 KB Output is correct
38 Correct 32 ms 14780 KB Output is correct
39 Correct 33 ms 14564 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9684 KB Output is correct
4 Correct 7 ms 9696 KB Output is correct
5 Correct 48 ms 19320 KB Output is correct
6 Correct 45 ms 15564 KB Output is correct
7 Correct 52 ms 20312 KB Output is correct
8 Correct 32 ms 14524 KB Output is correct
9 Correct 51 ms 20336 KB Output is correct
10 Correct 51 ms 17252 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9716 KB Output is correct
3 Correct 5 ms 9752 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9728 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 5 ms 9736 KB Output is correct
9 Correct 5 ms 9700 KB Output is correct
10 Correct 7 ms 9688 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9652 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9704 KB Output is correct
16 Correct 6 ms 9704 KB Output is correct
17 Correct 5 ms 9708 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9708 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 7 ms 9684 KB Output is correct
23 Correct 5 ms 9712 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 6 ms 9704 KB Output is correct
26 Correct 5 ms 9708 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9680 KB Output is correct
33 Correct 6 ms 9684 KB Output is correct
34 Correct 5 ms 9684 KB Output is correct
35 Correct 6 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 5 ms 9684 KB Output is correct
38 Correct 5 ms 9684 KB Output is correct
39 Correct 5 ms 9684 KB Output is correct
40 Correct 5 ms 9684 KB Output is correct
41 Correct 7 ms 9812 KB Output is correct
42 Correct 6 ms 9812 KB Output is correct
43 Correct 6 ms 9812 KB Output is correct
44 Correct 6 ms 9712 KB Output is correct
45 Correct 6 ms 9764 KB Output is correct
46 Correct 6 ms 9716 KB Output is correct
47 Correct 6 ms 9812 KB Output is correct
48 Correct 5 ms 9684 KB Output is correct
49 Correct 6 ms 9684 KB Output is correct
50 Correct 5 ms 9684 KB Output is correct
51 Correct 6 ms 9796 KB Output is correct
52 Correct 6 ms 9812 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9716 KB Output is correct
3 Correct 5 ms 9752 KB Output is correct
4 Correct 5 ms 9684 KB Output is correct
5 Correct 5 ms 9684 KB Output is correct
6 Correct 5 ms 9728 KB Output is correct
7 Correct 6 ms 9684 KB Output is correct
8 Correct 5 ms 9736 KB Output is correct
9 Correct 5 ms 9700 KB Output is correct
10 Correct 7 ms 9688 KB Output is correct
11 Correct 6 ms 9684 KB Output is correct
12 Correct 5 ms 9652 KB Output is correct
13 Correct 6 ms 9684 KB Output is correct
14 Correct 5 ms 9684 KB Output is correct
15 Correct 5 ms 9704 KB Output is correct
16 Correct 6 ms 9704 KB Output is correct
17 Correct 5 ms 9708 KB Output is correct
18 Correct 5 ms 9684 KB Output is correct
19 Correct 5 ms 9684 KB Output is correct
20 Correct 5 ms 9708 KB Output is correct
21 Correct 6 ms 9684 KB Output is correct
22 Correct 7 ms 9684 KB Output is correct
23 Correct 5 ms 9712 KB Output is correct
24 Correct 5 ms 9684 KB Output is correct
25 Correct 6 ms 9704 KB Output is correct
26 Correct 5 ms 9708 KB Output is correct
27 Correct 5 ms 9684 KB Output is correct
28 Correct 5 ms 9684 KB Output is correct
29 Correct 5 ms 9684 KB Output is correct
30 Correct 5 ms 9684 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 5 ms 9680 KB Output is correct
33 Correct 6 ms 9684 KB Output is correct
34 Correct 5 ms 9684 KB Output is correct
35 Correct 6 ms 9684 KB Output is correct
36 Correct 5 ms 9684 KB Output is correct
37 Correct 5 ms 9684 KB Output is correct
38 Correct 6 ms 9684 KB Output is correct
39 Correct 5 ms 9708 KB Output is correct
40 Correct 5 ms 9684 KB Output is correct
41 Correct 5 ms 9708 KB Output is correct
42 Correct 5 ms 9708 KB Output is correct
43 Correct 5 ms 9684 KB Output is correct
44 Correct 5 ms 9704 KB Output is correct
45 Correct 6 ms 9656 KB Output is correct
46 Correct 5 ms 9684 KB Output is correct
47 Correct 5 ms 9708 KB Output is correct
48 Correct 5 ms 9704 KB Output is correct
49 Correct 6 ms 9684 KB Output is correct
50 Correct 5 ms 9684 KB Output is correct
51 Correct 6 ms 9684 KB Output is correct
52 Correct 6 ms 9684 KB Output is correct
53 Correct 6 ms 9720 KB Output is correct
54 Correct 8 ms 10244 KB Output is correct
55 Correct 9 ms 10232 KB Output is correct
56 Correct 34 ms 14012 KB Output is correct
57 Correct 33 ms 14548 KB Output is correct
58 Correct 35 ms 14796 KB Output is correct
59 Correct 31 ms 14396 KB Output is correct
60 Correct 35 ms 14652 KB Output is correct
61 Correct 32 ms 14356 KB Output is correct
62 Correct 34 ms 14652 KB Output is correct
63 Correct 33 ms 14660 KB Output is correct
64 Correct 32 ms 14784 KB Output is correct
65 Correct 35 ms 14556 KB Output is correct
66 Correct 32 ms 14556 KB Output is correct
67 Correct 34 ms 14428 KB Output is correct
68 Correct 31 ms 14672 KB Output is correct
69 Correct 5 ms 9732 KB Output is correct
70 Correct 5 ms 9684 KB Output is correct
71 Correct 31 ms 14652 KB Output is correct
72 Correct 32 ms 14780 KB Output is correct
73 Correct 33 ms 14564 KB Output is correct
74 Correct 5 ms 9684 KB Output is correct
75 Correct 5 ms 9684 KB Output is correct
76 Correct 5 ms 9684 KB Output is correct
77 Correct 7 ms 9696 KB Output is correct
78 Correct 48 ms 19320 KB Output is correct
79 Correct 45 ms 15564 KB Output is correct
80 Correct 52 ms 20312 KB Output is correct
81 Correct 32 ms 14524 KB Output is correct
82 Correct 51 ms 20336 KB Output is correct
83 Correct 51 ms 17252 KB Output is correct
84 Correct 5 ms 9684 KB Output is correct
85 Correct 5 ms 9684 KB Output is correct
86 Correct 5 ms 9684 KB Output is correct
87 Correct 5 ms 9684 KB Output is correct
88 Correct 7 ms 9812 KB Output is correct
89 Correct 6 ms 9812 KB Output is correct
90 Correct 6 ms 9812 KB Output is correct
91 Correct 6 ms 9712 KB Output is correct
92 Correct 6 ms 9764 KB Output is correct
93 Correct 6 ms 9716 KB Output is correct
94 Correct 6 ms 9812 KB Output is correct
95 Correct 5 ms 9684 KB Output is correct
96 Correct 6 ms 9684 KB Output is correct
97 Correct 5 ms 9684 KB Output is correct
98 Correct 6 ms 9796 KB Output is correct
99 Correct 6 ms 9812 KB Output is correct
100 Correct 6 ms 9812 KB Output is correct
101 Correct 10 ms 10612 KB Output is correct
102 Correct 9 ms 10272 KB Output is correct
103 Correct 71 ms 20284 KB Output is correct
104 Correct 61 ms 20320 KB Output is correct
105 Correct 68 ms 17692 KB Output is correct
106 Correct 48 ms 20320 KB Output is correct
107 Correct 48 ms 15688 KB Output is correct
108 Correct 49 ms 16060 KB Output is correct
109 Correct 32 ms 14780 KB Output is correct
110 Correct 34 ms 14652 KB Output is correct
111 Correct 48 ms 19640 KB Output is correct
112 Correct 65 ms 18888 KB Output is correct
113 Correct 46 ms 15676 KB Output is correct
114 Correct 46 ms 20284 KB Output is correct
115 Correct 47 ms 20308 KB Output is correct