oj.uz

Submission #210791

# Submission time Handle Problem Language Result Execution time Memory
210791 2020-03-18T11:06:16 Z wiwiho Arranging Shoes (IOI19_shoes) C++14
100 / 100
 997 ms 149068 KB 
//#define NDEBUG

#include <bits/stdc++.h>
#include <bits/extc++.h>

#include "shoes.h"

#define StarBurstStream ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define iter(a) a.begin(), a.end()
#define riter(a) a.rbegin(), a.rend()
#define lsort(a) sort(iter(a))
#define gsort(a) sort(riter(a))
#define mp(a, b) make_pair(a, b)
#define pb(a) push_back(a)
#define eb(a) emplace_back(a)
#define pf(a) push_front(a)
#define pob pop_back()
#define pof pop_front()
#define F first
#define S second
#define printv(a, b) {bool pvaspace=false; \
for(auto pva : a){ \
    if(pvaspace) b << " "; pvaspace=true;\
    b << pva;\
}\
b << "\n";}
#define pii pair<int, int>
#define pll pair<ll, ll>
#define tiii tuple<int, int, int>
#define mt make_tuple
#define gt(t, i) get<i>(t)
#define iceil(a, b) ((a) / (b) + !!((a) % (b)))

//#define TEST

typedef long long ll;
typedef unsigned long long ull;

using namespace std;
using namespace __gnu_pbds;

const ll MOD = 1000000007;
const ll MAX = 2147483647;

template<typename A, typename B>
ostream &operator<<(ostream &o, pair<A, B> p){
    return o << '(' << p.F << ',' << p.S << ')';
}

vector<ll> BIT;

int lowbit(int x){
    return x & -x;
}

void modify(int x, int v){
    for(; x < BIT.size(); x += lowbit(x)) BIT[x] += v;
}

ll query(int x){
    if(x == 0) return 0;
    ll ans = 0;
    for(; x > 0; x -= lowbit(x)) ans += BIT[x];
    return ans;
}

ll query(int l, int r){
    if(r < l) return 0;
    return query(r) - query(l - 1);
}

ll count_swaps(vector<int> s){

    int n = s.size();
    s.insert(s.begin(), 0);
    BIT.resize(n + 1);
    for(int i = 1; i <= n; i++) modify(i, 1);

    ll ans = 0;
    map<ll, queue<int>> pos;
    for(int i = 1; i <= n; i++){
        pos[s[i]].push(i);
    }

    for(int i = 1; i <= n; i++){
        if(query(i, i) == 0) continue;
        int t = pos[-s[i]].front();
        pos[s[i]].pop();
        pos[-s[i]].pop();
        ans += query(i + 1, t - 1);
        if(s[i] > 0) ans++;
        modify(i, -1);
        modify(t, -1);
    }

    return ans;
}

Compilation message

shoes.cpp: In function 'void modify(int, int)':
shoes.cpp:57:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(; x < BIT.size(); x += lowbit(x)) BIT[x] += v;
           ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 6 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 6 ms 276 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 6 ms 256 KB Output is correct
6 Correct 6 ms 380 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 7 ms 252 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 7 ms 256 KB Output is correct
11 Correct 6 ms 256 KB Output is correct
12 Correct 7 ms 376 KB Output is correct
13 Correct 8 ms 376 KB Output is correct
14 Correct 7 ms 256 KB Output is correct
15 Correct 7 ms 404 KB Output is correct
16 Correct 6 ms 256 KB Output is correct
17 Correct 7 ms 276 KB Output is correct
18 Correct 6 ms 256 KB Output is correct
19 Correct 6 ms 380 KB Output is correct
20 Correct 6 ms 256 KB Output is correct
21 Correct 6 ms 256 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 7 ms 296 KB Output is correct
24 Correct 6 ms 424 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 8 ms 256 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 420 KB Output is correct
31 Correct 7 ms 276 KB Output is correct
32 Correct 6 ms 256 KB Output is correct
33 Correct 6 ms 256 KB Output is correct
34 Correct 6 ms 256 KB Output is correct
35 Correct 7 ms 256 KB Output is correct
36 Correct 7 ms 376 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 7 ms 256 KB Output is correct
4 Correct 6 ms 256 KB Output is correct
5 Correct 6 ms 376 KB Output is correct
6 Correct 7 ms 404 KB Output is correct
7 Correct 6 ms 256 KB Output is correct
8 Correct 6 ms 376 KB Output is correct
9 Correct 6 ms 256 KB Output is correct
10 Correct 6 ms 256 KB Output is correct
11 Correct 7 ms 376 KB Output is correct
12 Correct 6 ms 404 KB Output is correct
13 Correct 6 ms 256 KB Output is correct
14 Correct 6 ms 256 KB Output is correct
15 Correct 6 ms 256 KB Output is correct
16 Correct 7 ms 376 KB Output is correct
17 Correct 6 ms 256 KB Output is correct
18 Correct 7 ms 376 KB Output is correct
19 Correct 7 ms 376 KB Output is correct
20 Correct 12 ms 760 KB Output is correct
21 Correct 11 ms 764 KB Output is correct
22 Correct 70 ms 4456 KB Output is correct
23 Correct 63 ms 4328 KB Output is correct
24 Correct 74 ms 4300 KB Output is correct
25 Correct 66 ms 4300 KB Output is correct
26 Correct 71 ms 4328 KB Output is correct
27 Correct 61 ms 4328 KB Output is correct
28 Correct 66 ms 4328 KB Output is correct
29 Correct 70 ms 4300 KB Output is correct
30 Correct 66 ms 4328 KB Output is correct
31 Correct 67 ms 4300 KB Output is correct
32 Correct 69 ms 4332 KB Output is correct
33 Correct 64 ms 4372 KB Output is correct
34 Correct 63 ms 4328 KB Output is correct
35 Correct 6 ms 376 KB Output is correct
36 Correct 6 ms 256 KB Output is correct
37 Correct 68 ms 4300 KB Output is correct
38 Correct 68 ms 4328 KB Output is correct
39 Correct 71 ms 4244 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 404 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 7 ms 256 KB Output is correct
4 Correct 6 ms 256 KB Output is correct
5 Correct 913 ms 147552 KB Output is correct
6 Correct 228 ms 16192 KB Output is correct
7 Correct 907 ms 147620 KB Output is correct
8 Correct 69 ms 4332 KB Output is correct
9 Correct 853 ms 147684 KB Output is correct
10 Correct 629 ms 75528 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 6 ms 276 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 6 ms 256 KB Output is correct
6 Correct 6 ms 380 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 7 ms 252 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 7 ms 256 KB Output is correct
11 Correct 6 ms 256 KB Output is correct
12 Correct 7 ms 376 KB Output is correct
13 Correct 8 ms 376 KB Output is correct
14 Correct 7 ms 256 KB Output is correct
15 Correct 7 ms 404 KB Output is correct
16 Correct 6 ms 256 KB Output is correct
17 Correct 7 ms 276 KB Output is correct
18 Correct 6 ms 256 KB Output is correct
19 Correct 6 ms 380 KB Output is correct
20 Correct 6 ms 256 KB Output is correct
21 Correct 6 ms 256 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 7 ms 296 KB Output is correct
24 Correct 6 ms 424 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 8 ms 256 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 420 KB Output is correct
31 Correct 7 ms 276 KB Output is correct
32 Correct 6 ms 256 KB Output is correct
33 Correct 6 ms 256 KB Output is correct
34 Correct 6 ms 256 KB Output is correct
35 Correct 7 ms 256 KB Output is correct
36 Correct 7 ms 376 KB Output is correct
37 Correct 7 ms 256 KB Output is correct
38 Correct 6 ms 404 KB Output is correct
39 Correct 7 ms 504 KB Output is correct
40 Correct 7 ms 708 KB Output is correct
41 Correct 9 ms 1784 KB Output is correct
42 Correct 8 ms 1784 KB Output is correct
43 Correct 9 ms 1528 KB Output is correct
44 Correct 8 ms 1400 KB Output is correct
45 Correct 9 ms 1272 KB Output is correct
46 Correct 7 ms 1144 KB Output is correct
47 Correct 8 ms 888 KB Output is correct
48 Correct 8 ms 888 KB Output is correct
49 Correct 7 ms 760 KB Output is correct
50 Correct 7 ms 376 KB Output is correct
51 Correct 7 ms 376 KB Output is correct
52 Correct 9 ms 1784 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 6 ms 376 KB Output is correct
3 Correct 6 ms 276 KB Output is correct
4 Correct 7 ms 256 KB Output is correct
5 Correct 6 ms 256 KB Output is correct
6 Correct 6 ms 380 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 7 ms 252 KB Output is correct
9 Correct 6 ms 376 KB Output is correct
10 Correct 7 ms 256 KB Output is correct
11 Correct 6 ms 256 KB Output is correct
12 Correct 7 ms 376 KB Output is correct
13 Correct 8 ms 376 KB Output is correct
14 Correct 7 ms 256 KB Output is correct
15 Correct 7 ms 404 KB Output is correct
16 Correct 6 ms 256 KB Output is correct
17 Correct 7 ms 276 KB Output is correct
18 Correct 6 ms 256 KB Output is correct
19 Correct 6 ms 380 KB Output is correct
20 Correct 6 ms 256 KB Output is correct
21 Correct 6 ms 256 KB Output is correct
22 Correct 6 ms 376 KB Output is correct
23 Correct 7 ms 296 KB Output is correct
24 Correct 6 ms 424 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 8 ms 256 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 376 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 420 KB Output is correct
31 Correct 7 ms 276 KB Output is correct
32 Correct 6 ms 256 KB Output is correct
33 Correct 6 ms 256 KB Output is correct
34 Correct 6 ms 256 KB Output is correct
35 Correct 7 ms 256 KB Output is correct
36 Correct 7 ms 376 KB Output is correct
37 Correct 7 ms 256 KB Output is correct
38 Correct 6 ms 256 KB Output is correct
39 Correct 6 ms 376 KB Output is correct
40 Correct 7 ms 404 KB Output is correct
41 Correct 6 ms 256 KB Output is correct
42 Correct 6 ms 376 KB Output is correct
43 Correct 6 ms 256 KB Output is correct
44 Correct 6 ms 256 KB Output is correct
45 Correct 7 ms 376 KB Output is correct
46 Correct 6 ms 404 KB Output is correct
47 Correct 6 ms 256 KB Output is correct
48 Correct 6 ms 256 KB Output is correct
49 Correct 6 ms 256 KB Output is correct
50 Correct 7 ms 376 KB Output is correct
51 Correct 6 ms 256 KB Output is correct
52 Correct 7 ms 376 KB Output is correct
53 Correct 7 ms 376 KB Output is correct
54 Correct 12 ms 760 KB Output is correct
55 Correct 11 ms 764 KB Output is correct
56 Correct 70 ms 4456 KB Output is correct
57 Correct 63 ms 4328 KB Output is correct
58 Correct 74 ms 4300 KB Output is correct
59 Correct 66 ms 4300 KB Output is correct
60 Correct 71 ms 4328 KB Output is correct
61 Correct 61 ms 4328 KB Output is correct
62 Correct 66 ms 4328 KB Output is correct
63 Correct 70 ms 4300 KB Output is correct
64 Correct 66 ms 4328 KB Output is correct
65 Correct 67 ms 4300 KB Output is correct
66 Correct 69 ms 4332 KB Output is correct
67 Correct 64 ms 4372 KB Output is correct
68 Correct 63 ms 4328 KB Output is correct
69 Correct 6 ms 376 KB Output is correct
70 Correct 6 ms 256 KB Output is correct
71 Correct 68 ms 4300 KB Output is correct
72 Correct 68 ms 4328 KB Output is correct
73 Correct 71 ms 4244 KB Output is correct
74 Correct 6 ms 404 KB Output is correct
75 Correct 6 ms 376 KB Output is correct
76 Correct 7 ms 256 KB Output is correct
77 Correct 6 ms 256 KB Output is correct
78 Correct 913 ms 147552 KB Output is correct
79 Correct 228 ms 16192 KB Output is correct
80 Correct 907 ms 147620 KB Output is correct
81 Correct 69 ms 4332 KB Output is correct
82 Correct 853 ms 147684 KB Output is correct
83 Correct 629 ms 75528 KB Output is correct
84 Correct 7 ms 256 KB Output is correct
85 Correct 6 ms 404 KB Output is correct
86 Correct 7 ms 504 KB Output is correct
87 Correct 7 ms 708 KB Output is correct
88 Correct 9 ms 1784 KB Output is correct
89 Correct 8 ms 1784 KB Output is correct
90 Correct 9 ms 1528 KB Output is correct
91 Correct 8 ms 1400 KB Output is correct
92 Correct 9 ms 1272 KB Output is correct
93 Correct 7 ms 1144 KB Output is correct
94 Correct 8 ms 888 KB Output is correct
95 Correct 8 ms 888 KB Output is correct
96 Correct 7 ms 760 KB Output is correct
97 Correct 7 ms 376 KB Output is correct
98 Correct 7 ms 376 KB Output is correct
99 Correct 9 ms 1784 KB Output is correct
100 Correct 9 ms 1812 KB Output is correct
101 Correct 56 ms 13600 KB Output is correct
102 Correct 23 ms 3448 KB Output is correct
103 Correct 997 ms 147504 KB Output is correct
104 Correct 872 ms 149068 KB Output is correct
105 Correct 735 ms 86580 KB Output is correct
106 Correct 864 ms 148940 KB Output is correct
107 Correct 287 ms 20852 KB Output is correct
108 Correct 382 ms 36848 KB Output is correct
109 Correct 67 ms 5608 KB Output is correct
110 Correct 70 ms 5736 KB Output is correct
111 Correct 816 ms 132768 KB Output is correct
112 Correct 890 ms 116792 KB Output is correct
113 Correct 295 ms 22524 KB Output is correct
114 Correct 828 ms 148828 KB Output is correct
115 Correct 844 ms 148924 KB Output is correct