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Submission #168634

# Submission time Handle Problem Language Result Execution time Memory
168634 2019-12-14T16:36:33 Z beso123 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 124 ms 25080 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define N 200005
ll n,fix[N],ans,f[2*N];
pair< vector<ll>,ll > v1[N],v2[N];
void upd(ll u)
{
    u++;
    while (u<=2*n)
    {
        f[u]++;
        u+=(u&(-u));
    }
    return;
}
ll get(ll u,ll v)
{
    v++;
    ll tans=0;
    while (v>0)
    {
        tans+=f[v];
        v-=(v&(-v));
    }
    while (u>0)
    {
        tans-=f[u];
        u-=(u&(-u));
    }
    return tans;
}
ll count_swaps(vector<int> a)
{
    n=a.size()/2;
    for (int i=0; i<2*n; i++)
    {
        if (a[i]<0)
        {
            v1[-a[i]].F.pb(i);
            if ( v2[-a[i]].F.size()-v2[-a[i]].S>0 ){
                fix[i]= (v2[-a[i]].F)[ v2[-a[i]].S ];
                fix[ (v2[-a[i]].F)[ v2[-a[i]].S ] ]
                    =(v2[-a[i]].F)[ v2[-a[i]].S ];
                v1[-a[i]].S++;
                v2[-a[i]].S++;
            }
        }
        else
        {
            v2[a[i]].F.pb(i);
            if ( v1[a[i]].F.size()-v1[a[i]].S>0 )
            {
                fix[i]= (v1[a[i]].F)[ v1[a[i]].S ];
                fix[ (v1[a[i]].F)[ v1[a[i]].S ] ]
                    =(v1[a[i]].F)[ v1[a[i]].S ];
                v2[a[i]].S++;
                v1[a[i]].S++;
            }
        }
    }
    for (int i=0; i<2*n; i++)
    {
        upd(fix[i]);
        if (i==fix[i])
            continue;
        ans+=get(fix[i]+1,i);
        if (a[i]<a[fix[i]])
            ans++;
    }
  	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12920 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12920 KB Output is correct
3 Correct 13 ms 12920 KB Output is correct
4 Correct 13 ms 12920 KB Output is correct
5 Correct 13 ms 12920 KB Output is correct
6 Correct 13 ms 12920 KB Output is correct
7 Correct 13 ms 12796 KB Output is correct
8 Correct 13 ms 12920 KB Output is correct
9 Correct 13 ms 12792 KB Output is correct
10 Correct 13 ms 12920 KB Output is correct
11 Correct 13 ms 12792 KB Output is correct
12 Correct 13 ms 12792 KB Output is correct
13 Correct 13 ms 12792 KB Output is correct
14 Correct 13 ms 12920 KB Output is correct
15 Correct 13 ms 12920 KB Output is correct
16 Correct 13 ms 12920 KB Output is correct
17 Correct 13 ms 12792 KB Output is correct
18 Correct 13 ms 12920 KB Output is correct
19 Correct 13 ms 12792 KB Output is correct
20 Correct 13 ms 12920 KB Output is correct
21 Correct 13 ms 12920 KB Output is correct
22 Correct 13 ms 12920 KB Output is correct
23 Correct 13 ms 12920 KB Output is correct
24 Correct 13 ms 12920 KB Output is correct
25 Correct 13 ms 12792 KB Output is correct
26 Correct 13 ms 12792 KB Output is correct
27 Correct 13 ms 12920 KB Output is correct
28 Correct 13 ms 12792 KB Output is correct
29 Correct 14 ms 12792 KB Output is correct
30 Correct 13 ms 12792 KB Output is correct
31 Correct 13 ms 12920 KB Output is correct
32 Correct 13 ms 12792 KB Output is correct
33 Correct 13 ms 12792 KB Output is correct
34 Correct 13 ms 12920 KB Output is correct
35 Correct 13 ms 12920 KB Output is correct
36 Correct 13 ms 12920 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12920 KB Output is correct
3 Correct 13 ms 12920 KB Output is correct
4 Correct 13 ms 12920 KB Output is correct
5 Correct 16 ms 12920 KB Output is correct
6 Correct 16 ms 12792 KB Output is correct
7 Correct 13 ms 12920 KB Output is correct
8 Correct 14 ms 12920 KB Output is correct
9 Correct 13 ms 12792 KB Output is correct
10 Correct 13 ms 12920 KB Output is correct
11 Correct 13 ms 12920 KB Output is correct
12 Correct 13 ms 12792 KB Output is correct
13 Correct 13 ms 12792 KB Output is correct
14 Correct 13 ms 12792 KB Output is correct
15 Correct 13 ms 12792 KB Output is correct
16 Correct 13 ms 12792 KB Output is correct
17 Correct 13 ms 12920 KB Output is correct
18 Correct 14 ms 12920 KB Output is correct
19 Correct 16 ms 12920 KB Output is correct
20 Correct 21 ms 13688 KB Output is correct
21 Correct 20 ms 13760 KB Output is correct
22 Correct 65 ms 20580 KB Output is correct
23 Correct 51 ms 20556 KB Output is correct
24 Correct 56 ms 20460 KB Output is correct
25 Correct 50 ms 19536 KB Output is correct
26 Correct 55 ms 20552 KB Output is correct
27 Correct 50 ms 20452 KB Output is correct
28 Correct 51 ms 19816 KB Output is correct
29 Correct 51 ms 19952 KB Output is correct
30 Correct 51 ms 19816 KB Output is correct
31 Correct 55 ms 20600 KB Output is correct
32 Correct 52 ms 19792 KB Output is correct
33 Correct 50 ms 19564 KB Output is correct
34 Correct 51 ms 19824 KB Output is correct
35 Correct 13 ms 12792 KB Output is correct
36 Correct 14 ms 12924 KB Output is correct
37 Correct 51 ms 19816 KB Output is correct
38 Correct 51 ms 19820 KB Output is correct
39 Correct 51 ms 19820 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12792 KB Output is correct
3 Correct 13 ms 12920 KB Output is correct
4 Correct 13 ms 12920 KB Output is correct
5 Correct 88 ms 24304 KB Output is correct
6 Correct 76 ms 20620 KB Output is correct
7 Correct 86 ms 24312 KB Output is correct
8 Correct 55 ms 20272 KB Output is correct
9 Correct 85 ms 24284 KB Output is correct
10 Correct 89 ms 21624 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12920 KB Output is correct
3 Correct 13 ms 12920 KB Output is correct
4 Correct 13 ms 12920 KB Output is correct
5 Correct 13 ms 12920 KB Output is correct
6 Correct 13 ms 12920 KB Output is correct
7 Correct 13 ms 12796 KB Output is correct
8 Correct 13 ms 12920 KB Output is correct
9 Correct 13 ms 12792 KB Output is correct
10 Correct 13 ms 12920 KB Output is correct
11 Correct 13 ms 12792 KB Output is correct
12 Correct 13 ms 12792 KB Output is correct
13 Correct 13 ms 12792 KB Output is correct
14 Correct 13 ms 12920 KB Output is correct
15 Correct 13 ms 12920 KB Output is correct
16 Correct 13 ms 12920 KB Output is correct
17 Correct 13 ms 12792 KB Output is correct
18 Correct 13 ms 12920 KB Output is correct
19 Correct 13 ms 12792 KB Output is correct
20 Correct 13 ms 12920 KB Output is correct
21 Correct 13 ms 12920 KB Output is correct
22 Correct 13 ms 12920 KB Output is correct
23 Correct 13 ms 12920 KB Output is correct
24 Correct 13 ms 12920 KB Output is correct
25 Correct 13 ms 12792 KB Output is correct
26 Correct 13 ms 12792 KB Output is correct
27 Correct 13 ms 12920 KB Output is correct
28 Correct 13 ms 12792 KB Output is correct
29 Correct 14 ms 12792 KB Output is correct
30 Correct 13 ms 12792 KB Output is correct
31 Correct 13 ms 12920 KB Output is correct
32 Correct 13 ms 12792 KB Output is correct
33 Correct 13 ms 12792 KB Output is correct
34 Correct 13 ms 12920 KB Output is correct
35 Correct 13 ms 12920 KB Output is correct
36 Correct 13 ms 12920 KB Output is correct
37 Correct 13 ms 12920 KB Output is correct
38 Correct 13 ms 12920 KB Output is correct
39 Correct 13 ms 12920 KB Output is correct
40 Correct 14 ms 12920 KB Output is correct
41 Correct 14 ms 12920 KB Output is correct
42 Correct 13 ms 12920 KB Output is correct
43 Correct 13 ms 13048 KB Output is correct
44 Correct 13 ms 13048 KB Output is correct
45 Correct 13 ms 12920 KB Output is correct
46 Correct 13 ms 12920 KB Output is correct
47 Correct 14 ms 12920 KB Output is correct
48 Correct 14 ms 12920 KB Output is correct
49 Correct 14 ms 12920 KB Output is correct
50 Correct 13 ms 12920 KB Output is correct
51 Correct 13 ms 12920 KB Output is correct
52 Correct 14 ms 13048 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 12920 KB Output is correct
2 Correct 13 ms 12920 KB Output is correct
3 Correct 13 ms 12920 KB Output is correct
4 Correct 13 ms 12920 KB Output is correct
5 Correct 13 ms 12920 KB Output is correct
6 Correct 13 ms 12920 KB Output is correct
7 Correct 13 ms 12796 KB Output is correct
8 Correct 13 ms 12920 KB Output is correct
9 Correct 13 ms 12792 KB Output is correct
10 Correct 13 ms 12920 KB Output is correct
11 Correct 13 ms 12792 KB Output is correct
12 Correct 13 ms 12792 KB Output is correct
13 Correct 13 ms 12792 KB Output is correct
14 Correct 13 ms 12920 KB Output is correct
15 Correct 13 ms 12920 KB Output is correct
16 Correct 13 ms 12920 KB Output is correct
17 Correct 13 ms 12792 KB Output is correct
18 Correct 13 ms 12920 KB Output is correct
19 Correct 13 ms 12792 KB Output is correct
20 Correct 13 ms 12920 KB Output is correct
21 Correct 13 ms 12920 KB Output is correct
22 Correct 13 ms 12920 KB Output is correct
23 Correct 13 ms 12920 KB Output is correct
24 Correct 13 ms 12920 KB Output is correct
25 Correct 13 ms 12792 KB Output is correct
26 Correct 13 ms 12792 KB Output is correct
27 Correct 13 ms 12920 KB Output is correct
28 Correct 13 ms 12792 KB Output is correct
29 Correct 14 ms 12792 KB Output is correct
30 Correct 13 ms 12792 KB Output is correct
31 Correct 13 ms 12920 KB Output is correct
32 Correct 13 ms 12792 KB Output is correct
33 Correct 13 ms 12792 KB Output is correct
34 Correct 13 ms 12920 KB Output is correct
35 Correct 13 ms 12920 KB Output is correct
36 Correct 13 ms 12920 KB Output is correct
37 Correct 13 ms 12920 KB Output is correct
38 Correct 13 ms 12920 KB Output is correct
39 Correct 16 ms 12920 KB Output is correct
40 Correct 16 ms 12792 KB Output is correct
41 Correct 13 ms 12920 KB Output is correct
42 Correct 14 ms 12920 KB Output is correct
43 Correct 13 ms 12792 KB Output is correct
44 Correct 13 ms 12920 KB Output is correct
45 Correct 13 ms 12920 KB Output is correct
46 Correct 13 ms 12792 KB Output is correct
47 Correct 13 ms 12792 KB Output is correct
48 Correct 13 ms 12792 KB Output is correct
49 Correct 13 ms 12792 KB Output is correct
50 Correct 13 ms 12792 KB Output is correct
51 Correct 13 ms 12920 KB Output is correct
52 Correct 14 ms 12920 KB Output is correct
53 Correct 16 ms 12920 KB Output is correct
54 Correct 21 ms 13688 KB Output is correct
55 Correct 20 ms 13760 KB Output is correct
56 Correct 65 ms 20580 KB Output is correct
57 Correct 51 ms 20556 KB Output is correct
58 Correct 56 ms 20460 KB Output is correct
59 Correct 50 ms 19536 KB Output is correct
60 Correct 55 ms 20552 KB Output is correct
61 Correct 50 ms 20452 KB Output is correct
62 Correct 51 ms 19816 KB Output is correct
63 Correct 51 ms 19952 KB Output is correct
64 Correct 51 ms 19816 KB Output is correct
65 Correct 55 ms 20600 KB Output is correct
66 Correct 52 ms 19792 KB Output is correct
67 Correct 50 ms 19564 KB Output is correct
68 Correct 51 ms 19824 KB Output is correct
69 Correct 13 ms 12792 KB Output is correct
70 Correct 14 ms 12924 KB Output is correct
71 Correct 51 ms 19816 KB Output is correct
72 Correct 51 ms 19820 KB Output is correct
73 Correct 51 ms 19820 KB Output is correct
74 Correct 13 ms 12920 KB Output is correct
75 Correct 13 ms 12792 KB Output is correct
76 Correct 13 ms 12920 KB Output is correct
77 Correct 13 ms 12920 KB Output is correct
78 Correct 88 ms 24304 KB Output is correct
79 Correct 76 ms 20620 KB Output is correct
80 Correct 86 ms 24312 KB Output is correct
81 Correct 55 ms 20272 KB Output is correct
82 Correct 85 ms 24284 KB Output is correct
83 Correct 89 ms 21624 KB Output is correct
84 Correct 13 ms 12920 KB Output is correct
85 Correct 13 ms 12920 KB Output is correct
86 Correct 13 ms 12920 KB Output is correct
87 Correct 14 ms 12920 KB Output is correct
88 Correct 14 ms 12920 KB Output is correct
89 Correct 13 ms 12920 KB Output is correct
90 Correct 13 ms 13048 KB Output is correct
91 Correct 13 ms 13048 KB Output is correct
92 Correct 13 ms 12920 KB Output is correct
93 Correct 13 ms 12920 KB Output is correct
94 Correct 14 ms 12920 KB Output is correct
95 Correct 14 ms 12920 KB Output is correct
96 Correct 14 ms 12920 KB Output is correct
97 Correct 13 ms 12920 KB Output is correct
98 Correct 13 ms 12920 KB Output is correct
99 Correct 14 ms 13048 KB Output is correct
100 Correct 14 ms 13048 KB Output is correct
101 Correct 21 ms 14072 KB Output is correct
102 Correct 20 ms 13680 KB Output is correct
103 Correct 124 ms 25012 KB Output is correct
104 Correct 88 ms 25080 KB Output is correct
105 Correct 97 ms 22648 KB Output is correct
106 Correct 92 ms 24312 KB Output is correct
107 Correct 76 ms 21536 KB Output is correct
108 Correct 78 ms 21916 KB Output is correct
109 Correct 53 ms 20588 KB Output is correct
110 Correct 52 ms 19948 KB Output is correct
111 Correct 98 ms 23800 KB Output is correct
112 Correct 105 ms 23672 KB Output is correct
113 Correct 80 ms 20600 KB Output is correct
114 Correct 92 ms 24312 KB Output is correct
115 Correct 95 ms 24268 KB Output is correct