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Submission #171627

# Submission time Handle Problem Language Result Execution time Memory
171627 2019-12-29T12:23:00 Z losmi247 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 254 ms 37420 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 2e5+45;

ll n,a[N];
ll drvo[10*N];
bool gotov[2*N];

void build(int i,int j,int node){
    if(i == j){
        drvo[node] = 1;
        return;
    }
    int mid = i+(j-i)/2;
    build(i,mid,2*node);
    build(mid+1,j,2*node+1);
    drvo[node] = drvo[2*node]+drvo[2*node+1];
}

void update(int i,int j,int pos,int node){
    if(i == j){
        drvo[node] = 0;
        return;
    }
    int mid = i+(j-i)/2;
    if(pos <= mid){
        update(i,mid,pos,2*node);
    }
    else{
        update(mid+1,j,pos,2*node+1);
    }
    drvo[node] = drvo[2*node]+drvo[2*node+1];
}

ll get(int i,int j,int l,int r,int node){
    if(j < l || i > r){
        return 0;
    }
    if(l <= i && r >= j){
        return drvo[node];
    }
    int mid = i+(j-i)/2;
    return get(i,mid,l,r,2*node)+get(mid+1,j,l,r,2*node+1);
}

set <int> s[2*N];

ll count_swaps(vector <int> v){
    n = v.size();
    for(int i = 1; i <= n; i++){
        a[i] = v[i-1];
    }
    for(int i = 1; i <= n; i++){
        s[a[i]+n].insert(i);
    }
    build(1,n,1);
    ll sol = 0;
    for(int i = 1; i <= n; i++){
        if(gotov[i]){
            continue;
        }
        ll poz = *s[-a[i]+n].begin();
        s[a[i]+n].erase(i);
        s[-a[i]+n].erase(poz);
        sol += get(1,n,i,poz,1)-2;
        if(a[i] > 0){
            sol++;
        }
        //cout << i << " " << poz << " " << sol << endl;
        update(1,n,i,1);
        update(1,n,poz,1);
        gotov[i] = gotov[poz] = 1;
    }
    return sol;
}

/*int main(){
    vector <int> v = {2, 1, -1, -2};
    cout << count_swaps(v) << endl;
}*/

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19192 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19192 KB Output is correct
3 Correct 19 ms 19064 KB Output is correct
4 Correct 19 ms 19192 KB Output is correct
5 Correct 19 ms 19144 KB Output is correct
6 Correct 19 ms 19064 KB Output is correct
7 Correct 19 ms 19064 KB Output is correct
8 Correct 19 ms 19064 KB Output is correct
9 Correct 19 ms 19068 KB Output is correct
10 Correct 20 ms 19064 KB Output is correct
11 Correct 19 ms 19192 KB Output is correct
12 Correct 19 ms 19192 KB Output is correct
13 Correct 19 ms 19064 KB Output is correct
14 Correct 20 ms 19192 KB Output is correct
15 Correct 19 ms 19064 KB Output is correct
16 Correct 19 ms 19192 KB Output is correct
17 Correct 19 ms 19192 KB Output is correct
18 Correct 20 ms 19192 KB Output is correct
19 Correct 19 ms 19320 KB Output is correct
20 Correct 19 ms 19192 KB Output is correct
21 Correct 19 ms 19064 KB Output is correct
22 Correct 20 ms 19192 KB Output is correct
23 Correct 19 ms 19064 KB Output is correct
24 Correct 19 ms 19064 KB Output is correct
25 Correct 19 ms 19064 KB Output is correct
26 Correct 19 ms 19064 KB Output is correct
27 Correct 19 ms 19064 KB Output is correct
28 Correct 19 ms 19060 KB Output is correct
29 Correct 19 ms 19064 KB Output is correct
30 Correct 20 ms 19192 KB Output is correct
31 Correct 20 ms 19192 KB Output is correct
32 Correct 19 ms 19192 KB Output is correct
33 Correct 19 ms 19064 KB Output is correct
34 Correct 19 ms 19192 KB Output is correct
35 Correct 19 ms 19192 KB Output is correct
36 Correct 19 ms 19192 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19192 KB Output is correct
3 Correct 19 ms 19064 KB Output is correct
4 Correct 19 ms 19064 KB Output is correct
5 Correct 19 ms 19064 KB Output is correct
6 Correct 20 ms 19192 KB Output is correct
7 Correct 19 ms 19192 KB Output is correct
8 Correct 19 ms 19064 KB Output is correct
9 Correct 19 ms 19064 KB Output is correct
10 Correct 19 ms 19064 KB Output is correct
11 Correct 19 ms 19192 KB Output is correct
12 Correct 19 ms 19064 KB Output is correct
13 Correct 19 ms 19064 KB Output is correct
14 Correct 19 ms 19064 KB Output is correct
15 Correct 20 ms 19192 KB Output is correct
16 Correct 19 ms 19192 KB Output is correct
17 Correct 19 ms 19192 KB Output is correct
18 Correct 20 ms 19320 KB Output is correct
19 Correct 20 ms 19324 KB Output is correct
20 Correct 32 ms 20992 KB Output is correct
21 Correct 32 ms 20988 KB Output is correct
22 Correct 162 ms 37240 KB Output is correct
23 Correct 177 ms 37288 KB Output is correct
24 Correct 164 ms 37236 KB Output is correct
25 Correct 179 ms 37104 KB Output is correct
26 Correct 164 ms 37240 KB Output is correct
27 Correct 182 ms 37036 KB Output is correct
28 Correct 183 ms 37184 KB Output is correct
29 Correct 199 ms 37420 KB Output is correct
30 Correct 181 ms 37252 KB Output is correct
31 Correct 165 ms 37256 KB Output is correct
32 Correct 183 ms 37240 KB Output is correct
33 Correct 181 ms 37024 KB Output is correct
34 Correct 181 ms 37192 KB Output is correct
35 Correct 19 ms 19064 KB Output is correct
36 Correct 20 ms 19192 KB Output is correct
37 Correct 182 ms 37216 KB Output is correct
38 Correct 193 ms 37244 KB Output is correct
39 Correct 181 ms 37260 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19164 KB Output is correct
3 Correct 19 ms 19184 KB Output is correct
4 Correct 19 ms 19064 KB Output is correct
5 Correct 185 ms 35964 KB Output is correct
6 Correct 252 ms 37240 KB Output is correct
7 Correct 173 ms 37220 KB Output is correct
8 Correct 169 ms 37324 KB Output is correct
9 Correct 178 ms 37280 KB Output is correct
10 Correct 202 ms 37368 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19192 KB Output is correct
3 Correct 19 ms 19064 KB Output is correct
4 Correct 19 ms 19192 KB Output is correct
5 Correct 19 ms 19144 KB Output is correct
6 Correct 19 ms 19064 KB Output is correct
7 Correct 19 ms 19064 KB Output is correct
8 Correct 19 ms 19064 KB Output is correct
9 Correct 19 ms 19068 KB Output is correct
10 Correct 20 ms 19064 KB Output is correct
11 Correct 19 ms 19192 KB Output is correct
12 Correct 19 ms 19192 KB Output is correct
13 Correct 19 ms 19064 KB Output is correct
14 Correct 20 ms 19192 KB Output is correct
15 Correct 19 ms 19064 KB Output is correct
16 Correct 19 ms 19192 KB Output is correct
17 Correct 19 ms 19192 KB Output is correct
18 Correct 20 ms 19192 KB Output is correct
19 Correct 19 ms 19320 KB Output is correct
20 Correct 19 ms 19192 KB Output is correct
21 Correct 19 ms 19064 KB Output is correct
22 Correct 20 ms 19192 KB Output is correct
23 Correct 19 ms 19064 KB Output is correct
24 Correct 19 ms 19064 KB Output is correct
25 Correct 19 ms 19064 KB Output is correct
26 Correct 19 ms 19064 KB Output is correct
27 Correct 19 ms 19064 KB Output is correct
28 Correct 19 ms 19060 KB Output is correct
29 Correct 19 ms 19064 KB Output is correct
30 Correct 20 ms 19192 KB Output is correct
31 Correct 20 ms 19192 KB Output is correct
32 Correct 19 ms 19192 KB Output is correct
33 Correct 19 ms 19064 KB Output is correct
34 Correct 19 ms 19192 KB Output is correct
35 Correct 19 ms 19192 KB Output is correct
36 Correct 19 ms 19192 KB Output is correct
37 Correct 19 ms 19156 KB Output is correct
38 Correct 19 ms 19196 KB Output is correct
39 Correct 19 ms 19068 KB Output is correct
40 Correct 19 ms 19192 KB Output is correct
41 Correct 20 ms 19320 KB Output is correct
42 Correct 20 ms 19320 KB Output is correct
43 Correct 24 ms 19320 KB Output is correct
44 Correct 20 ms 19320 KB Output is correct
45 Correct 20 ms 19320 KB Output is correct
46 Correct 20 ms 19320 KB Output is correct
47 Correct 20 ms 19320 KB Output is correct
48 Correct 21 ms 19324 KB Output is correct
49 Correct 20 ms 19320 KB Output is correct
50 Correct 20 ms 19324 KB Output is correct
51 Correct 20 ms 19320 KB Output is correct
52 Correct 20 ms 19320 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19192 KB Output is correct
2 Correct 20 ms 19192 KB Output is correct
3 Correct 19 ms 19064 KB Output is correct
4 Correct 19 ms 19192 KB Output is correct
5 Correct 19 ms 19144 KB Output is correct
6 Correct 19 ms 19064 KB Output is correct
7 Correct 19 ms 19064 KB Output is correct
8 Correct 19 ms 19064 KB Output is correct
9 Correct 19 ms 19068 KB Output is correct
10 Correct 20 ms 19064 KB Output is correct
11 Correct 19 ms 19192 KB Output is correct
12 Correct 19 ms 19192 KB Output is correct
13 Correct 19 ms 19064 KB Output is correct
14 Correct 20 ms 19192 KB Output is correct
15 Correct 19 ms 19064 KB Output is correct
16 Correct 19 ms 19192 KB Output is correct
17 Correct 19 ms 19192 KB Output is correct
18 Correct 20 ms 19192 KB Output is correct
19 Correct 19 ms 19320 KB Output is correct
20 Correct 19 ms 19192 KB Output is correct
21 Correct 19 ms 19064 KB Output is correct
22 Correct 20 ms 19192 KB Output is correct
23 Correct 19 ms 19064 KB Output is correct
24 Correct 19 ms 19064 KB Output is correct
25 Correct 19 ms 19064 KB Output is correct
26 Correct 19 ms 19064 KB Output is correct
27 Correct 19 ms 19064 KB Output is correct
28 Correct 19 ms 19060 KB Output is correct
29 Correct 19 ms 19064 KB Output is correct
30 Correct 20 ms 19192 KB Output is correct
31 Correct 20 ms 19192 KB Output is correct
32 Correct 19 ms 19192 KB Output is correct
33 Correct 19 ms 19064 KB Output is correct
34 Correct 19 ms 19192 KB Output is correct
35 Correct 19 ms 19192 KB Output is correct
36 Correct 19 ms 19192 KB Output is correct
37 Correct 19 ms 19064 KB Output is correct
38 Correct 19 ms 19064 KB Output is correct
39 Correct 19 ms 19064 KB Output is correct
40 Correct 20 ms 19192 KB Output is correct
41 Correct 19 ms 19192 KB Output is correct
42 Correct 19 ms 19064 KB Output is correct
43 Correct 19 ms 19064 KB Output is correct
44 Correct 19 ms 19064 KB Output is correct
45 Correct 19 ms 19192 KB Output is correct
46 Correct 19 ms 19064 KB Output is correct
47 Correct 19 ms 19064 KB Output is correct
48 Correct 19 ms 19064 KB Output is correct
49 Correct 20 ms 19192 KB Output is correct
50 Correct 19 ms 19192 KB Output is correct
51 Correct 19 ms 19192 KB Output is correct
52 Correct 20 ms 19320 KB Output is correct
53 Correct 20 ms 19324 KB Output is correct
54 Correct 32 ms 20992 KB Output is correct
55 Correct 32 ms 20988 KB Output is correct
56 Correct 162 ms 37240 KB Output is correct
57 Correct 177 ms 37288 KB Output is correct
58 Correct 164 ms 37236 KB Output is correct
59 Correct 179 ms 37104 KB Output is correct
60 Correct 164 ms 37240 KB Output is correct
61 Correct 182 ms 37036 KB Output is correct
62 Correct 183 ms 37184 KB Output is correct
63 Correct 199 ms 37420 KB Output is correct
64 Correct 181 ms 37252 KB Output is correct
65 Correct 165 ms 37256 KB Output is correct
66 Correct 183 ms 37240 KB Output is correct
67 Correct 181 ms 37024 KB Output is correct
68 Correct 181 ms 37192 KB Output is correct
69 Correct 19 ms 19064 KB Output is correct
70 Correct 20 ms 19192 KB Output is correct
71 Correct 182 ms 37216 KB Output is correct
72 Correct 193 ms 37244 KB Output is correct
73 Correct 181 ms 37260 KB Output is correct
74 Correct 19 ms 19192 KB Output is correct
75 Correct 20 ms 19164 KB Output is correct
76 Correct 19 ms 19184 KB Output is correct
77 Correct 19 ms 19064 KB Output is correct
78 Correct 185 ms 35964 KB Output is correct
79 Correct 252 ms 37240 KB Output is correct
80 Correct 173 ms 37220 KB Output is correct
81 Correct 169 ms 37324 KB Output is correct
82 Correct 178 ms 37280 KB Output is correct
83 Correct 202 ms 37368 KB Output is correct
84 Correct 19 ms 19156 KB Output is correct
85 Correct 19 ms 19196 KB Output is correct
86 Correct 19 ms 19068 KB Output is correct
87 Correct 19 ms 19192 KB Output is correct
88 Correct 20 ms 19320 KB Output is correct
89 Correct 20 ms 19320 KB Output is correct
90 Correct 24 ms 19320 KB Output is correct
91 Correct 20 ms 19320 KB Output is correct
92 Correct 20 ms 19320 KB Output is correct
93 Correct 20 ms 19320 KB Output is correct
94 Correct 20 ms 19320 KB Output is correct
95 Correct 21 ms 19324 KB Output is correct
96 Correct 20 ms 19320 KB Output is correct
97 Correct 20 ms 19324 KB Output is correct
98 Correct 20 ms 19320 KB Output is correct
99 Correct 20 ms 19320 KB Output is correct
100 Correct 20 ms 19320 KB Output is correct
101 Correct 33 ms 21056 KB Output is correct
102 Correct 35 ms 20984 KB Output is correct
103 Correct 218 ms 37220 KB Output is correct
104 Correct 168 ms 37324 KB Output is correct
105 Correct 202 ms 37244 KB Output is correct
106 Correct 171 ms 37244 KB Output is correct
107 Correct 218 ms 37252 KB Output is correct
108 Correct 192 ms 37240 KB Output is correct
109 Correct 165 ms 37240 KB Output is correct
110 Correct 181 ms 37288 KB Output is correct
111 Correct 175 ms 37220 KB Output is correct
112 Correct 208 ms 37220 KB Output is correct
113 Correct 254 ms 37240 KB Output is correct
114 Correct 175 ms 37132 KB Output is correct
115 Correct 174 ms 37240 KB Output is correct