oj.uz

Submission #228761

# Submission time Handle Problem Language Result Execution time Memory
228761 2020-05-02T13:48:16 Z hhh07 Arranging Shoes (IOI19_shoes) C++14
100 / 100
 259 ms 275704 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <string>
#include <queue>
//#include "shoes.h"
 
using namespace std;
 
typedef long long ll;
 
vector<ll> t;
 
ll getSum(ll idx){
    ll sum = 0;
    idx++;
    while (idx > 0){
        sum += t[idx];
        idx -= idx & (-idx);
    }
    return sum;
}
 
void updateF(ll n, ll idx, ll val){
    idx++;
    while (idx <= n){
        t[idx] += val;
        idx += idx & (-idx);
    }
}
 
ll count_swaps(vector<int> s){
    ll n = s.size();
    t.assign(n + 2, 0);
    vector<queue<ll>> cnt1(n + 1, queue<ll> ()), cnt2(n + 1, queue<ll> ());
    queue<ll> q;
    for (ll i = n - 1; i >= 0; i--){
        if (s[i] < 0)
            cnt2[-s[i]].push(i);
        else
            cnt1[s[i]].push(i);
    }
    vector<bool> koristen(n, false);
    ll res = 0;
    ll pocetak = n - 2;
    
    for (int i = n - 1; i >= 0; i--){
        if (koristen[i])
            continue;
        ll curr = i;
        
        ll par;
        if (s[i] < 0){
            res++;
            par = cnt1[-s[i]].front();
            cnt1[-s[i]].pop();
            cnt2[-s[i]].pop();
        }
        else{
            par = cnt2[s[i]].front();
            cnt1[s[i]].pop();
            cnt2[s[i]].pop();
        }
        updateF(n, par + 1, -1);
        koristen[i] = true;
        koristen[par] = true;
        par += getSum(par);
        res += pocetak - par;

        
        pocetak -= 2;
    }
    
    return res;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:51:12: warning: unused variable 'curr' [-Wunused-variable]
         ll curr = i;
            ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 416 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 6 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 512 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 4 ms 256 KB Output is correct
9 Correct 4 ms 256 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 256 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 5 ms 1152 KB Output is correct
18 Correct 7 ms 3072 KB Output is correct
19 Correct 7 ms 3072 KB Output is correct
20 Correct 28 ms 27904 KB Output is correct
21 Correct 27 ms 27776 KB Output is correct
22 Correct 204 ms 274440 KB Output is correct
23 Correct 199 ms 274424 KB Output is correct
24 Correct 208 ms 274424 KB Output is correct
25 Correct 202 ms 274552 KB Output is correct
26 Correct 200 ms 274428 KB Output is correct
27 Correct 195 ms 274424 KB Output is correct
28 Correct 197 ms 274552 KB Output is correct
29 Correct 198 ms 274428 KB Output is correct
30 Correct 194 ms 274424 KB Output is correct
31 Correct 201 ms 274424 KB Output is correct
32 Correct 199 ms 274424 KB Output is correct
33 Correct 200 ms 274428 KB Output is correct
34 Correct 220 ms 274412 KB Output is correct
35 Correct 4 ms 256 KB Output is correct
36 Correct 5 ms 256 KB Output is correct
37 Correct 191 ms 274400 KB Output is correct
38 Correct 190 ms 274424 KB Output is correct
39 Correct 194 ms 274424 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 247 ms 272808 KB Output is correct
6 Correct 235 ms 272760 KB Output is correct
7 Correct 242 ms 272768 KB Output is correct
8 Correct 205 ms 274424 KB Output is correct
9 Correct 240 ms 272760 KB Output is correct
10 Correct 241 ms 272760 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 416 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 6 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 640 KB Output is correct
40 Correct 5 ms 1152 KB Output is correct
41 Correct 7 ms 3072 KB Output is correct
42 Correct 7 ms 3200 KB Output is correct
43 Correct 7 ms 3072 KB Output is correct
44 Correct 7 ms 3072 KB Output is correct
45 Correct 7 ms 3072 KB Output is correct
46 Correct 6 ms 3072 KB Output is correct
47 Correct 6 ms 3072 KB Output is correct
48 Correct 7 ms 3072 KB Output is correct
49 Correct 7 ms 3072 KB Output is correct
50 Correct 7 ms 3072 KB Output is correct
51 Correct 7 ms 3072 KB Output is correct
52 Correct 7 ms 3072 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 4 ms 256 KB Output is correct
7 Correct 5 ms 256 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 256 KB Output is correct
10 Correct 4 ms 256 KB Output is correct
11 Correct 5 ms 416 KB Output is correct
12 Correct 5 ms 256 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 256 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 256 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 256 KB Output is correct
21 Correct 5 ms 256 KB Output is correct
22 Correct 5 ms 256 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 6 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 256 KB Output is correct
38 Correct 5 ms 512 KB Output is correct
39 Correct 5 ms 256 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 5 ms 256 KB Output is correct
42 Correct 4 ms 256 KB Output is correct
43 Correct 4 ms 256 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 5 ms 256 KB Output is correct
46 Correct 5 ms 256 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 4 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 640 KB Output is correct
51 Correct 5 ms 1152 KB Output is correct
52 Correct 7 ms 3072 KB Output is correct
53 Correct 7 ms 3072 KB Output is correct
54 Correct 28 ms 27904 KB Output is correct
55 Correct 27 ms 27776 KB Output is correct
56 Correct 204 ms 274440 KB Output is correct
57 Correct 199 ms 274424 KB Output is correct
58 Correct 208 ms 274424 KB Output is correct
59 Correct 202 ms 274552 KB Output is correct
60 Correct 200 ms 274428 KB Output is correct
61 Correct 195 ms 274424 KB Output is correct
62 Correct 197 ms 274552 KB Output is correct
63 Correct 198 ms 274428 KB Output is correct
64 Correct 194 ms 274424 KB Output is correct
65 Correct 201 ms 274424 KB Output is correct
66 Correct 199 ms 274424 KB Output is correct
67 Correct 200 ms 274428 KB Output is correct
68 Correct 220 ms 274412 KB Output is correct
69 Correct 4 ms 256 KB Output is correct
70 Correct 5 ms 256 KB Output is correct
71 Correct 191 ms 274400 KB Output is correct
72 Correct 190 ms 274424 KB Output is correct
73 Correct 194 ms 274424 KB Output is correct
74 Correct 5 ms 384 KB Output is correct
75 Correct 4 ms 256 KB Output is correct
76 Correct 5 ms 256 KB Output is correct
77 Correct 5 ms 384 KB Output is correct
78 Correct 247 ms 272808 KB Output is correct
79 Correct 235 ms 272760 KB Output is correct
80 Correct 242 ms 272768 KB Output is correct
81 Correct 205 ms 274424 KB Output is correct
82 Correct 240 ms 272760 KB Output is correct
83 Correct 241 ms 272760 KB Output is correct
84 Correct 5 ms 384 KB Output is correct
85 Correct 5 ms 384 KB Output is correct
86 Correct 5 ms 640 KB Output is correct
87 Correct 5 ms 1152 KB Output is correct
88 Correct 7 ms 3072 KB Output is correct
89 Correct 7 ms 3200 KB Output is correct
90 Correct 7 ms 3072 KB Output is correct
91 Correct 7 ms 3072 KB Output is correct
92 Correct 7 ms 3072 KB Output is correct
93 Correct 6 ms 3072 KB Output is correct
94 Correct 6 ms 3072 KB Output is correct
95 Correct 7 ms 3072 KB Output is correct
96 Correct 7 ms 3072 KB Output is correct
97 Correct 7 ms 3072 KB Output is correct
98 Correct 7 ms 3072 KB Output is correct
99 Correct 7 ms 3072 KB Output is correct
100 Correct 6 ms 3072 KB Output is correct
101 Correct 28 ms 27648 KB Output is correct
102 Correct 27 ms 27648 KB Output is correct
103 Correct 259 ms 274040 KB Output is correct
104 Correct 252 ms 274040 KB Output is correct
105 Correct 251 ms 274132 KB Output is correct
106 Correct 242 ms 274040 KB Output is correct
107 Correct 233 ms 274040 KB Output is correct
108 Correct 229 ms 274040 KB Output is correct
109 Correct 202 ms 275704 KB Output is correct
110 Correct 203 ms 275704 KB Output is correct
111 Correct 244 ms 274168 KB Output is correct
112 Correct 251 ms 274040 KB Output is correct
113 Correct 223 ms 274040 KB Output is correct
114 Correct 242 ms 274040 KB Output is correct
115 Correct 256 ms 274168 KB Output is correct