Submission #143592

# Submission time Handle Problem Language Result Execution time Memory
143592 2019-08-14T17:11:58 Z kdh9949 Arranging Shoes (IOI19_shoes) C++17
100 / 100
116 ms 24852 KB
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

#define x first
#define y second
#define pb push_back
#define eb emplace_back
#define ppb pop_back
#define all(x) x.begin(),x.end()
#define cppio ios_base::sync_with_stdio(0);cin.tie(0)

using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int N = 200005;

vector<int> u[N], v[N], t[N];
vector<pii> w;
int a[N];

struct BIT{
	int d[N];
	void u(int x){ for(; x < N; x += x & -x) d[x]++; }
	int g(int x){ int r = 0; for(; x; x -= x & -x) r += d[x]; return r; }
	int g(int s, int e){ return g(e) - g(s - 1); }
} B;

ll count_swaps(vector<int> s) {
	int n = s.size() / 2;
	for(int i = 0; i < 2 * n; i++) (s[i] < 0 ? u : v)[abs(s[i])].pb(i);
	for(int i = 1; i <= n; i++) for(int j = 0; j < u[i].size(); j++) w.pb(pii(u[i][j], v[i][j]));
	sort(all(w), [](pii x, pii y){ return x.x + x.y < y.x + y.y; });
	for(int i = 0; i < n; i++){
		a[w[i].x] = 2 * i + 1;
		a[w[i].y] = 2 * i + 2;
	}
	ll r = 0;
	for(int i = 0; i < 2 * n; i++){
		r += B.g(a[i] + 1, 2 * n);
		B.u(a[i]);
	}
	return r;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:33:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 1; i <= n; i++) for(int j = 0; j < u[i].size(); j++) w.pb(pii(u[i][j], v[i][j]));
                                             ~~^~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
3 Correct 15 ms 14456 KB Output is correct
4 Correct 15 ms 14456 KB Output is correct
5 Correct 15 ms 14456 KB Output is correct
6 Correct 16 ms 14584 KB Output is correct
7 Correct 14 ms 14456 KB Output is correct
8 Correct 14 ms 14396 KB Output is correct
9 Correct 14 ms 14456 KB Output is correct
10 Correct 15 ms 14456 KB Output is correct
11 Correct 15 ms 14456 KB Output is correct
12 Correct 15 ms 14456 KB Output is correct
13 Correct 15 ms 14456 KB Output is correct
14 Correct 15 ms 14428 KB Output is correct
15 Correct 14 ms 14456 KB Output is correct
16 Correct 15 ms 14428 KB Output is correct
17 Correct 15 ms 14428 KB Output is correct
18 Correct 15 ms 14428 KB Output is correct
19 Correct 15 ms 14368 KB Output is correct
20 Correct 16 ms 14444 KB Output is correct
21 Correct 14 ms 14456 KB Output is correct
22 Correct 14 ms 14456 KB Output is correct
23 Correct 14 ms 14456 KB Output is correct
24 Correct 15 ms 14456 KB Output is correct
25 Correct 15 ms 14456 KB Output is correct
26 Correct 18 ms 14456 KB Output is correct
27 Correct 15 ms 14460 KB Output is correct
28 Correct 15 ms 14456 KB Output is correct
29 Correct 15 ms 14456 KB Output is correct
30 Correct 15 ms 14456 KB Output is correct
31 Correct 14 ms 14456 KB Output is correct
32 Correct 14 ms 14460 KB Output is correct
33 Correct 15 ms 14456 KB Output is correct
34 Correct 15 ms 14456 KB Output is correct
35 Correct 15 ms 14456 KB Output is correct
36 Correct 15 ms 14460 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
3 Correct 15 ms 14456 KB Output is correct
4 Correct 15 ms 14456 KB Output is correct
5 Correct 21 ms 14456 KB Output is correct
6 Correct 15 ms 14456 KB Output is correct
7 Correct 18 ms 14456 KB Output is correct
8 Correct 18 ms 14456 KB Output is correct
9 Correct 18 ms 14456 KB Output is correct
10 Correct 15 ms 14584 KB Output is correct
11 Correct 15 ms 14456 KB Output is correct
12 Correct 16 ms 14456 KB Output is correct
13 Correct 15 ms 14456 KB Output is correct
14 Correct 15 ms 14456 KB Output is correct
15 Correct 15 ms 14456 KB Output is correct
16 Correct 15 ms 14456 KB Output is correct
17 Correct 15 ms 14456 KB Output is correct
18 Correct 15 ms 14456 KB Output is correct
19 Correct 15 ms 14456 KB Output is correct
20 Correct 19 ms 15100 KB Output is correct
21 Correct 19 ms 15096 KB Output is correct
22 Correct 59 ms 19220 KB Output is correct
23 Correct 54 ms 19204 KB Output is correct
24 Correct 58 ms 19236 KB Output is correct
25 Correct 52 ms 19308 KB Output is correct
26 Correct 58 ms 19300 KB Output is correct
27 Correct 53 ms 19176 KB Output is correct
28 Correct 54 ms 19308 KB Output is correct
29 Correct 54 ms 19308 KB Output is correct
30 Correct 54 ms 19308 KB Output is correct
31 Correct 58 ms 19200 KB Output is correct
32 Correct 54 ms 19308 KB Output is correct
33 Correct 53 ms 19240 KB Output is correct
34 Correct 54 ms 19308 KB Output is correct
35 Correct 14 ms 14456 KB Output is correct
36 Correct 15 ms 14456 KB Output is correct
37 Correct 54 ms 19180 KB Output is correct
38 Correct 54 ms 19328 KB Output is correct
39 Correct 54 ms 19308 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 15 ms 14500 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
3 Correct 15 ms 14456 KB Output is correct
4 Correct 18 ms 14456 KB Output is correct
5 Correct 96 ms 24684 KB Output is correct
6 Correct 79 ms 19976 KB Output is correct
7 Correct 97 ms 24684 KB Output is correct
8 Correct 62 ms 19388 KB Output is correct
9 Correct 95 ms 24684 KB Output is correct
10 Correct 93 ms 21612 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
3 Correct 15 ms 14456 KB Output is correct
4 Correct 15 ms 14456 KB Output is correct
5 Correct 15 ms 14456 KB Output is correct
6 Correct 16 ms 14584 KB Output is correct
7 Correct 14 ms 14456 KB Output is correct
8 Correct 14 ms 14396 KB Output is correct
9 Correct 14 ms 14456 KB Output is correct
10 Correct 15 ms 14456 KB Output is correct
11 Correct 15 ms 14456 KB Output is correct
12 Correct 15 ms 14456 KB Output is correct
13 Correct 15 ms 14456 KB Output is correct
14 Correct 15 ms 14428 KB Output is correct
15 Correct 14 ms 14456 KB Output is correct
16 Correct 15 ms 14428 KB Output is correct
17 Correct 15 ms 14428 KB Output is correct
18 Correct 15 ms 14428 KB Output is correct
19 Correct 15 ms 14368 KB Output is correct
20 Correct 16 ms 14444 KB Output is correct
21 Correct 14 ms 14456 KB Output is correct
22 Correct 14 ms 14456 KB Output is correct
23 Correct 14 ms 14456 KB Output is correct
24 Correct 15 ms 14456 KB Output is correct
25 Correct 15 ms 14456 KB Output is correct
26 Correct 18 ms 14456 KB Output is correct
27 Correct 15 ms 14460 KB Output is correct
28 Correct 15 ms 14456 KB Output is correct
29 Correct 15 ms 14456 KB Output is correct
30 Correct 15 ms 14456 KB Output is correct
31 Correct 14 ms 14456 KB Output is correct
32 Correct 14 ms 14460 KB Output is correct
33 Correct 15 ms 14456 KB Output is correct
34 Correct 15 ms 14456 KB Output is correct
35 Correct 15 ms 14456 KB Output is correct
36 Correct 15 ms 14460 KB Output is correct
37 Correct 15 ms 14460 KB Output is correct
38 Correct 18 ms 14456 KB Output is correct
39 Correct 14 ms 14456 KB Output is correct
40 Correct 15 ms 14456 KB Output is correct
41 Correct 15 ms 14584 KB Output is correct
42 Correct 16 ms 14584 KB Output is correct
43 Correct 15 ms 14584 KB Output is correct
44 Correct 15 ms 14456 KB Output is correct
45 Correct 15 ms 14556 KB Output is correct
46 Correct 15 ms 14456 KB Output is correct
47 Correct 15 ms 14456 KB Output is correct
48 Correct 15 ms 14456 KB Output is correct
49 Correct 15 ms 14460 KB Output is correct
50 Correct 15 ms 14456 KB Output is correct
51 Correct 15 ms 14456 KB Output is correct
52 Correct 15 ms 14584 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 14 ms 14456 KB Output is correct
2 Correct 15 ms 14456 KB Output is correct
3 Correct 15 ms 14456 KB Output is correct
4 Correct 15 ms 14456 KB Output is correct
5 Correct 15 ms 14456 KB Output is correct
6 Correct 16 ms 14584 KB Output is correct
7 Correct 14 ms 14456 KB Output is correct
8 Correct 14 ms 14396 KB Output is correct
9 Correct 14 ms 14456 KB Output is correct
10 Correct 15 ms 14456 KB Output is correct
11 Correct 15 ms 14456 KB Output is correct
12 Correct 15 ms 14456 KB Output is correct
13 Correct 15 ms 14456 KB Output is correct
14 Correct 15 ms 14428 KB Output is correct
15 Correct 14 ms 14456 KB Output is correct
16 Correct 15 ms 14428 KB Output is correct
17 Correct 15 ms 14428 KB Output is correct
18 Correct 15 ms 14428 KB Output is correct
19 Correct 15 ms 14368 KB Output is correct
20 Correct 16 ms 14444 KB Output is correct
21 Correct 14 ms 14456 KB Output is correct
22 Correct 14 ms 14456 KB Output is correct
23 Correct 14 ms 14456 KB Output is correct
24 Correct 15 ms 14456 KB Output is correct
25 Correct 15 ms 14456 KB Output is correct
26 Correct 18 ms 14456 KB Output is correct
27 Correct 15 ms 14460 KB Output is correct
28 Correct 15 ms 14456 KB Output is correct
29 Correct 15 ms 14456 KB Output is correct
30 Correct 15 ms 14456 KB Output is correct
31 Correct 14 ms 14456 KB Output is correct
32 Correct 14 ms 14460 KB Output is correct
33 Correct 15 ms 14456 KB Output is correct
34 Correct 15 ms 14456 KB Output is correct
35 Correct 15 ms 14456 KB Output is correct
36 Correct 15 ms 14460 KB Output is correct
37 Correct 15 ms 14456 KB Output is correct
38 Correct 15 ms 14456 KB Output is correct
39 Correct 21 ms 14456 KB Output is correct
40 Correct 15 ms 14456 KB Output is correct
41 Correct 18 ms 14456 KB Output is correct
42 Correct 18 ms 14456 KB Output is correct
43 Correct 18 ms 14456 KB Output is correct
44 Correct 15 ms 14584 KB Output is correct
45 Correct 15 ms 14456 KB Output is correct
46 Correct 16 ms 14456 KB Output is correct
47 Correct 15 ms 14456 KB Output is correct
48 Correct 15 ms 14456 KB Output is correct
49 Correct 15 ms 14456 KB Output is correct
50 Correct 15 ms 14456 KB Output is correct
51 Correct 15 ms 14456 KB Output is correct
52 Correct 15 ms 14456 KB Output is correct
53 Correct 15 ms 14456 KB Output is correct
54 Correct 19 ms 15100 KB Output is correct
55 Correct 19 ms 15096 KB Output is correct
56 Correct 59 ms 19220 KB Output is correct
57 Correct 54 ms 19204 KB Output is correct
58 Correct 58 ms 19236 KB Output is correct
59 Correct 52 ms 19308 KB Output is correct
60 Correct 58 ms 19300 KB Output is correct
61 Correct 53 ms 19176 KB Output is correct
62 Correct 54 ms 19308 KB Output is correct
63 Correct 54 ms 19308 KB Output is correct
64 Correct 54 ms 19308 KB Output is correct
65 Correct 58 ms 19200 KB Output is correct
66 Correct 54 ms 19308 KB Output is correct
67 Correct 53 ms 19240 KB Output is correct
68 Correct 54 ms 19308 KB Output is correct
69 Correct 14 ms 14456 KB Output is correct
70 Correct 15 ms 14456 KB Output is correct
71 Correct 54 ms 19180 KB Output is correct
72 Correct 54 ms 19328 KB Output is correct
73 Correct 54 ms 19308 KB Output is correct
74 Correct 15 ms 14500 KB Output is correct
75 Correct 15 ms 14456 KB Output is correct
76 Correct 15 ms 14456 KB Output is correct
77 Correct 18 ms 14456 KB Output is correct
78 Correct 96 ms 24684 KB Output is correct
79 Correct 79 ms 19976 KB Output is correct
80 Correct 97 ms 24684 KB Output is correct
81 Correct 62 ms 19388 KB Output is correct
82 Correct 95 ms 24684 KB Output is correct
83 Correct 93 ms 21612 KB Output is correct
84 Correct 15 ms 14460 KB Output is correct
85 Correct 18 ms 14456 KB Output is correct
86 Correct 14 ms 14456 KB Output is correct
87 Correct 15 ms 14456 KB Output is correct
88 Correct 15 ms 14584 KB Output is correct
89 Correct 16 ms 14584 KB Output is correct
90 Correct 15 ms 14584 KB Output is correct
91 Correct 15 ms 14456 KB Output is correct
92 Correct 15 ms 14556 KB Output is correct
93 Correct 15 ms 14456 KB Output is correct
94 Correct 15 ms 14456 KB Output is correct
95 Correct 15 ms 14456 KB Output is correct
96 Correct 15 ms 14460 KB Output is correct
97 Correct 15 ms 14456 KB Output is correct
98 Correct 15 ms 14456 KB Output is correct
99 Correct 15 ms 14584 KB Output is correct
100 Correct 15 ms 14584 KB Output is correct
101 Correct 22 ms 15480 KB Output is correct
102 Correct 25 ms 15224 KB Output is correct
103 Correct 114 ms 24852 KB Output is correct
104 Correct 116 ms 24684 KB Output is correct
105 Correct 103 ms 21996 KB Output is correct
106 Correct 96 ms 24764 KB Output is correct
107 Correct 85 ms 20076 KB Output is correct
108 Correct 88 ms 20536 KB Output is correct
109 Correct 63 ms 19716 KB Output is correct
110 Correct 54 ms 19180 KB Output is correct
111 Correct 97 ms 24044 KB Output is correct
112 Correct 109 ms 23264 KB Output is correct
113 Correct 86 ms 20076 KB Output is correct
114 Correct 96 ms 24688 KB Output is correct
115 Correct 97 ms 24684 KB Output is correct