oj.uz

Submission #195673

# Submission time Handle Problem Language Result Execution time Memory
195673 2020-01-16T18:30:53 Z Swan Arranging Shoes (IOI19_shoes) C++14
100 / 100
 213 ms 34012 KB 
#include <bits/stdc++.h>
#include "shoes.h"
#define stop system("pause")
#define stop2 char o; cin >> o
#define INP freopen("pcb.in","r",stdin)
#define OUTP freopen ("pcb.out","w",stdout)
using namespace std;

const int maxn = 610000;
vector<int> pos[610000];
bitset<maxn> used;

int n;

namespace fen{
    int bit[maxn];
    void upd(int id,int x){
        while(id < maxn){
            bit[id]+=x;
            id|=id+1;
        }
    }
    int sum(int r){
        int res = 0;
        while(r>=0){
            res+=bit[r];
            r&=r+1;
            r--;
        }
        return res;
    }
    int segm(int l,int r){
        int ans = sum(r);
        if(l)ans-=sum(l-1);
        return ans;
    }
}

int get_id(int x){
    if(x > 0)return x;
    else return -x+n;
}

long long count_swaps(std::vector<int> s) {
    long long ans = 0;
    n = s.size()/2;
    set<pair<int,int> > qwe;
    for(int i(0); i < s.size();i++){
        qwe.insert({i,s[i]});
        if(s[i] > 0)pos[s[i]].push_back(i);
        else{
            int id = get_id(s[i]);
            pos[id].push_back(i);
        }
    }
    for(int i(1); i <= 2*n;i++){
        reverse(pos[i].begin(),pos[i].end());
    }
    while(qwe.size()){
        if(used[qwe.begin()->first]){
            qwe.erase(qwe.begin());
            continue;
        }
        int now = -qwe.begin()->second;
        int id = get_id(now);
        int to_pos = pos[id].back();
        pos[id].pop_back();
        pos[get_id(-now)].pop_back();
        int dist = (to_pos+fen::segm(to_pos,maxn-1))-(qwe.begin()->first+fen::segm(qwe.begin()->first,maxn-1));
        //cout << "W " << (to_pos+fen::segm(to_pos,maxn-1)) << ' ' << (qwe.begin()->first+fen::segm(qwe.begin()->first,maxn-1)) << endl;
        if(qwe.begin()->second < 0)dist--;
        ans+=dist;
        used[qwe.begin()->first] = 1;
        used[to_pos] = 1;
        fen::upd(to_pos,1);
        //cout << ans << ' ' << dist << endl;
    }
    return ans;
}

/*
6
-2 2 2 -2 -2 2
*/
/*
main(){
    ios_base::sync_with_stdio(0);
    int n; cin >> n;
    vector<int> v;
    for(int i(0); i < n;i++){
        int x; cin >> x;
        v.push_back(x);
    }
    cout << count_swaps(v);
    return 0;
}*/
/*
4
2 1 -1 -2
6
-2 2 2 -2 -2 2
*/

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:48:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i(0); i < s.size();i++){
                   ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14716 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14716 KB Output is correct
3 Correct 15 ms 14712 KB Output is correct
4 Correct 17 ms 14712 KB Output is correct
5 Correct 15 ms 14712 KB Output is correct
6 Correct 19 ms 14712 KB Output is correct
7 Correct 15 ms 14712 KB Output is correct
8 Correct 16 ms 14712 KB Output is correct
9 Correct 15 ms 14712 KB Output is correct
10 Correct 15 ms 14712 KB Output is correct
11 Correct 12 ms 14712 KB Output is correct
12 Correct 16 ms 14840 KB Output is correct
13 Correct 15 ms 14712 KB Output is correct
14 Correct 15 ms 14712 KB Output is correct
15 Correct 15 ms 14712 KB Output is correct
16 Correct 14 ms 14712 KB Output is correct
17 Correct 15 ms 14712 KB Output is correct
18 Correct 15 ms 14712 KB Output is correct
19 Correct 15 ms 14712 KB Output is correct
20 Correct 15 ms 14712 KB Output is correct
21 Correct 15 ms 14712 KB Output is correct
22 Correct 15 ms 14712 KB Output is correct
23 Correct 15 ms 14712 KB Output is correct
24 Correct 14 ms 14632 KB Output is correct
25 Correct 15 ms 14712 KB Output is correct
26 Correct 15 ms 14840 KB Output is correct
27 Correct 13 ms 14712 KB Output is correct
28 Correct 15 ms 14712 KB Output is correct
29 Correct 15 ms 14840 KB Output is correct
30 Correct 15 ms 14712 KB Output is correct
31 Correct 15 ms 14736 KB Output is correct
32 Correct 15 ms 14712 KB Output is correct
33 Correct 15 ms 14712 KB Output is correct
34 Correct 15 ms 14712 KB Output is correct
35 Correct 15 ms 14712 KB Output is correct
36 Correct 13 ms 14712 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14716 KB Output is correct
3 Correct 15 ms 14712 KB Output is correct
4 Correct 14 ms 14712 KB Output is correct
5 Correct 19 ms 14712 KB Output is correct
6 Correct 15 ms 14712 KB Output is correct
7 Correct 15 ms 14712 KB Output is correct
8 Correct 15 ms 14712 KB Output is correct
9 Correct 15 ms 14712 KB Output is correct
10 Correct 15 ms 14712 KB Output is correct
11 Correct 15 ms 14712 KB Output is correct
12 Correct 15 ms 14716 KB Output is correct
13 Correct 15 ms 14712 KB Output is correct
14 Correct 16 ms 14844 KB Output is correct
15 Correct 15 ms 14712 KB Output is correct
16 Correct 15 ms 14736 KB Output is correct
17 Correct 15 ms 14712 KB Output is correct
18 Correct 16 ms 14812 KB Output is correct
19 Correct 16 ms 14840 KB Output is correct
20 Correct 24 ms 15864 KB Output is correct
21 Correct 24 ms 15864 KB Output is correct
22 Correct 123 ms 27208 KB Output is correct
23 Correct 119 ms 27172 KB Output is correct
24 Correct 121 ms 27232 KB Output is correct
25 Correct 121 ms 26880 KB Output is correct
26 Correct 124 ms 28520 KB Output is correct
27 Correct 125 ms 28264 KB Output is correct
28 Correct 124 ms 28144 KB Output is correct
29 Correct 117 ms 28200 KB Output is correct
30 Correct 127 ms 28112 KB Output is correct
31 Correct 129 ms 28660 KB Output is correct
32 Correct 120 ms 28216 KB Output is correct
33 Correct 114 ms 27888 KB Output is correct
34 Correct 125 ms 28160 KB Output is correct
35 Correct 16 ms 14712 KB Output is correct
36 Correct 20 ms 14712 KB Output is correct
37 Correct 115 ms 28144 KB Output is correct
38 Correct 116 ms 28208 KB Output is correct
39 Correct 116 ms 28272 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14712 KB Output is correct
3 Correct 15 ms 14712 KB Output is correct
4 Correct 15 ms 14712 KB Output is correct
5 Correct 189 ms 32376 KB Output is correct
6 Correct 130 ms 28792 KB Output is correct
7 Correct 187 ms 33824 KB Output is correct
8 Correct 114 ms 28148 KB Output is correct
9 Correct 190 ms 33636 KB Output is correct
10 Correct 161 ms 30456 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14716 KB Output is correct
3 Correct 15 ms 14712 KB Output is correct
4 Correct 17 ms 14712 KB Output is correct
5 Correct 15 ms 14712 KB Output is correct
6 Correct 19 ms 14712 KB Output is correct
7 Correct 15 ms 14712 KB Output is correct
8 Correct 16 ms 14712 KB Output is correct
9 Correct 15 ms 14712 KB Output is correct
10 Correct 15 ms 14712 KB Output is correct
11 Correct 12 ms 14712 KB Output is correct
12 Correct 16 ms 14840 KB Output is correct
13 Correct 15 ms 14712 KB Output is correct
14 Correct 15 ms 14712 KB Output is correct
15 Correct 15 ms 14712 KB Output is correct
16 Correct 14 ms 14712 KB Output is correct
17 Correct 15 ms 14712 KB Output is correct
18 Correct 15 ms 14712 KB Output is correct
19 Correct 15 ms 14712 KB Output is correct
20 Correct 15 ms 14712 KB Output is correct
21 Correct 15 ms 14712 KB Output is correct
22 Correct 15 ms 14712 KB Output is correct
23 Correct 15 ms 14712 KB Output is correct
24 Correct 14 ms 14632 KB Output is correct
25 Correct 15 ms 14712 KB Output is correct
26 Correct 15 ms 14840 KB Output is correct
27 Correct 13 ms 14712 KB Output is correct
28 Correct 15 ms 14712 KB Output is correct
29 Correct 15 ms 14840 KB Output is correct
30 Correct 15 ms 14712 KB Output is correct
31 Correct 15 ms 14736 KB Output is correct
32 Correct 15 ms 14712 KB Output is correct
33 Correct 15 ms 14712 KB Output is correct
34 Correct 15 ms 14712 KB Output is correct
35 Correct 15 ms 14712 KB Output is correct
36 Correct 13 ms 14712 KB Output is correct
37 Correct 15 ms 14712 KB Output is correct
38 Correct 15 ms 14636 KB Output is correct
39 Correct 14 ms 14712 KB Output is correct
40 Correct 16 ms 14712 KB Output is correct
41 Correct 16 ms 14840 KB Output is correct
42 Correct 15 ms 14840 KB Output is correct
43 Correct 16 ms 14840 KB Output is correct
44 Correct 18 ms 14772 KB Output is correct
45 Correct 16 ms 14784 KB Output is correct
46 Correct 20 ms 14840 KB Output is correct
47 Correct 23 ms 14916 KB Output is correct
48 Correct 15 ms 14840 KB Output is correct
49 Correct 16 ms 14840 KB Output is correct
50 Correct 17 ms 14840 KB Output is correct
51 Correct 16 ms 14712 KB Output is correct
52 Correct 17 ms 14840 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 14712 KB Output is correct
2 Correct 15 ms 14716 KB Output is correct
3 Correct 15 ms 14712 KB Output is correct
4 Correct 17 ms 14712 KB Output is correct
5 Correct 15 ms 14712 KB Output is correct
6 Correct 19 ms 14712 KB Output is correct
7 Correct 15 ms 14712 KB Output is correct
8 Correct 16 ms 14712 KB Output is correct
9 Correct 15 ms 14712 KB Output is correct
10 Correct 15 ms 14712 KB Output is correct
11 Correct 12 ms 14712 KB Output is correct
12 Correct 16 ms 14840 KB Output is correct
13 Correct 15 ms 14712 KB Output is correct
14 Correct 15 ms 14712 KB Output is correct
15 Correct 15 ms 14712 KB Output is correct
16 Correct 14 ms 14712 KB Output is correct
17 Correct 15 ms 14712 KB Output is correct
18 Correct 15 ms 14712 KB Output is correct
19 Correct 15 ms 14712 KB Output is correct
20 Correct 15 ms 14712 KB Output is correct
21 Correct 15 ms 14712 KB Output is correct
22 Correct 15 ms 14712 KB Output is correct
23 Correct 15 ms 14712 KB Output is correct
24 Correct 14 ms 14632 KB Output is correct
25 Correct 15 ms 14712 KB Output is correct
26 Correct 15 ms 14840 KB Output is correct
27 Correct 13 ms 14712 KB Output is correct
28 Correct 15 ms 14712 KB Output is correct
29 Correct 15 ms 14840 KB Output is correct
30 Correct 15 ms 14712 KB Output is correct
31 Correct 15 ms 14736 KB Output is correct
32 Correct 15 ms 14712 KB Output is correct
33 Correct 15 ms 14712 KB Output is correct
34 Correct 15 ms 14712 KB Output is correct
35 Correct 15 ms 14712 KB Output is correct
36 Correct 13 ms 14712 KB Output is correct
37 Correct 15 ms 14712 KB Output is correct
38 Correct 14 ms 14712 KB Output is correct
39 Correct 19 ms 14712 KB Output is correct
40 Correct 15 ms 14712 KB Output is correct
41 Correct 15 ms 14712 KB Output is correct
42 Correct 15 ms 14712 KB Output is correct
43 Correct 15 ms 14712 KB Output is correct
44 Correct 15 ms 14712 KB Output is correct
45 Correct 15 ms 14712 KB Output is correct
46 Correct 15 ms 14716 KB Output is correct
47 Correct 15 ms 14712 KB Output is correct
48 Correct 16 ms 14844 KB Output is correct
49 Correct 15 ms 14712 KB Output is correct
50 Correct 15 ms 14736 KB Output is correct
51 Correct 15 ms 14712 KB Output is correct
52 Correct 16 ms 14812 KB Output is correct
53 Correct 16 ms 14840 KB Output is correct
54 Correct 24 ms 15864 KB Output is correct
55 Correct 24 ms 15864 KB Output is correct
56 Correct 123 ms 27208 KB Output is correct
57 Correct 119 ms 27172 KB Output is correct
58 Correct 121 ms 27232 KB Output is correct
59 Correct 121 ms 26880 KB Output is correct
60 Correct 124 ms 28520 KB Output is correct
61 Correct 125 ms 28264 KB Output is correct
62 Correct 124 ms 28144 KB Output is correct
63 Correct 117 ms 28200 KB Output is correct
64 Correct 127 ms 28112 KB Output is correct
65 Correct 129 ms 28660 KB Output is correct
66 Correct 120 ms 28216 KB Output is correct
67 Correct 114 ms 27888 KB Output is correct
68 Correct 125 ms 28160 KB Output is correct
69 Correct 16 ms 14712 KB Output is correct
70 Correct 20 ms 14712 KB Output is correct
71 Correct 115 ms 28144 KB Output is correct
72 Correct 116 ms 28208 KB Output is correct
73 Correct 116 ms 28272 KB Output is correct
74 Correct 15 ms 14712 KB Output is correct
75 Correct 15 ms 14712 KB Output is correct
76 Correct 15 ms 14712 KB Output is correct
77 Correct 15 ms 14712 KB Output is correct
78 Correct 189 ms 32376 KB Output is correct
79 Correct 130 ms 28792 KB Output is correct
80 Correct 187 ms 33824 KB Output is correct
81 Correct 114 ms 28148 KB Output is correct
82 Correct 190 ms 33636 KB Output is correct
83 Correct 161 ms 30456 KB Output is correct
84 Correct 15 ms 14712 KB Output is correct
85 Correct 15 ms 14636 KB Output is correct
86 Correct 14 ms 14712 KB Output is correct
87 Correct 16 ms 14712 KB Output is correct
88 Correct 16 ms 14840 KB Output is correct
89 Correct 15 ms 14840 KB Output is correct
90 Correct 16 ms 14840 KB Output is correct
91 Correct 18 ms 14772 KB Output is correct
92 Correct 16 ms 14784 KB Output is correct
93 Correct 20 ms 14840 KB Output is correct
94 Correct 23 ms 14916 KB Output is correct
95 Correct 15 ms 14840 KB Output is correct
96 Correct 16 ms 14840 KB Output is correct
97 Correct 17 ms 14840 KB Output is correct
98 Correct 16 ms 14712 KB Output is correct
99 Correct 17 ms 14840 KB Output is correct
100 Correct 16 ms 14840 KB Output is correct
101 Correct 28 ms 16504 KB Output is correct
102 Correct 27 ms 16224 KB Output is correct
103 Correct 213 ms 33912 KB Output is correct
104 Correct 196 ms 34012 KB Output is correct
105 Correct 186 ms 31324 KB Output is correct
106 Correct 192 ms 33664 KB Output is correct
107 Correct 145 ms 29404 KB Output is correct
108 Correct 157 ms 29696 KB Output is correct
109 Correct 115 ms 28272 KB Output is correct
110 Correct 116 ms 28144 KB Output is correct
111 Correct 170 ms 32816 KB Output is correct
112 Correct 183 ms 32720 KB Output is correct
113 Correct 145 ms 29040 KB Output is correct
114 Correct 196 ms 33660 KB Output is correct
115 Correct 193 ms 33628 KB Output is correct