oj.uz

Submission #589426

# Submission time Handle Problem Language Result Execution time Memory
589426 2022-07-04T16:42:47 Z farhan132 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 77 ms 20732 KB 
#include "shoes.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<ll , ll> ii;
 
#define ff first
#define ss second
#define pb push_back
#define in insert

const ll N = 2e5 + 5;

struct fenwick{
  ll ft[N];
  void build(){
  	memset(ft, 0 ,sizeof(ft));
  	return;
  }
  void up(ll p, ll x) {
    for(; p < N; p += p & -p)
      ft[p] += x;
  } 
  ll sum(ll l, ll r) {
  	if(r < l) return 0;
    ll ret = 0;
    for(--l; l > 0; l -= l & -l) ret -= ft[l];
    for(; r > 0; r -= r & -r) ret += ft[r];
    return ret;
  }
};

ll a[N];
vector < ll > v0[N], v1[N];

long long count_swaps(std::vector<int> s) {

	ll n = s.size() / 2;

	fenwick T; T.build();

	for(ll i = 1; i <= 2*n; i++){
		a[i] = s[i - 1];
		T.up(i, 1);
		if(a[i] < 0) v0[-a[i]].pb(i);
		else v1[a[i]].pb(i);
	}
	for(ll i = n; i >= 1; i--){
		reverse(v1[i].begin(), v1[i].end());
		reverse(v0[i].begin(), v0[i].end());
	}
	ll ans = 0;
	for(ll i = 1; i <= 2*n; i++){
		if(T.sum(i, i) == 0) continue;
		ll S = abs(a[i]);
		ll st[2] = {v0[S].back(), v1[S].back()};
		T.up(st[0], -1);
		T.up(st[1], -1);
		ans += T.sum(i, st[0]) + T.sum(i, st[1]) + (st[1] < st[0]);
		v0[S].pop_back();
		v1[S].pop_back();
	}

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11220 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11220 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct
3 Correct 5 ms 11220 KB Output is correct
4 Correct 6 ms 11220 KB Output is correct
5 Correct 6 ms 11220 KB Output is correct
6 Correct 6 ms 11220 KB Output is correct
7 Correct 6 ms 11220 KB Output is correct
8 Correct 6 ms 11156 KB Output is correct
9 Correct 6 ms 11220 KB Output is correct
10 Correct 6 ms 11220 KB Output is correct
11 Correct 6 ms 11220 KB Output is correct
12 Correct 5 ms 11220 KB Output is correct
13 Correct 6 ms 11220 KB Output is correct
14 Correct 6 ms 11248 KB Output is correct
15 Correct 6 ms 11220 KB Output is correct
16 Correct 6 ms 11220 KB Output is correct
17 Correct 6 ms 11220 KB Output is correct
18 Correct 6 ms 11220 KB Output is correct
19 Correct 5 ms 11244 KB Output is correct
20 Correct 6 ms 11220 KB Output is correct
21 Correct 6 ms 11240 KB Output is correct
22 Correct 6 ms 11244 KB Output is correct
23 Correct 7 ms 11348 KB Output is correct
24 Correct 6 ms 11220 KB Output is correct
25 Correct 6 ms 11220 KB Output is correct
26 Correct 6 ms 11248 KB Output is correct
27 Correct 6 ms 11220 KB Output is correct
28 Correct 6 ms 11220 KB Output is correct
29 Correct 6 ms 11220 KB Output is correct
30 Correct 6 ms 11220 KB Output is correct
31 Correct 6 ms 11236 KB Output is correct
32 Correct 6 ms 11244 KB Output is correct
33 Correct 5 ms 11220 KB Output is correct
34 Correct 6 ms 11248 KB Output is correct
35 Correct 6 ms 11220 KB Output is correct
36 Correct 5 ms 11220 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11220 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct
3 Correct 5 ms 11156 KB Output is correct
4 Correct 6 ms 11252 KB Output is correct
5 Correct 5 ms 11220 KB Output is correct
6 Correct 6 ms 11220 KB Output is correct
7 Correct 6 ms 11220 KB Output is correct
8 Correct 6 ms 11240 KB Output is correct
9 Correct 6 ms 11220 KB Output is correct
10 Correct 7 ms 11240 KB Output is correct
11 Correct 7 ms 11244 KB Output is correct
12 Correct 6 ms 11220 KB Output is correct
13 Correct 6 ms 11220 KB Output is correct
14 Correct 6 ms 11220 KB Output is correct
15 Correct 6 ms 11220 KB Output is correct
16 Correct 6 ms 11220 KB Output is correct
17 Correct 6 ms 11220 KB Output is correct
18 Correct 7 ms 11276 KB Output is correct
19 Correct 6 ms 11248 KB Output is correct
20 Correct 9 ms 11988 KB Output is correct
21 Correct 9 ms 11860 KB Output is correct
22 Correct 43 ms 16220 KB Output is correct
23 Correct 38 ms 16192 KB Output is correct
24 Correct 44 ms 16096 KB Output is correct
25 Correct 38 ms 16580 KB Output is correct
26 Correct 43 ms 16236 KB Output is correct
27 Correct 38 ms 16232 KB Output is correct
28 Correct 38 ms 16592 KB Output is correct
29 Correct 39 ms 16584 KB Output is correct
30 Correct 38 ms 16492 KB Output is correct
31 Correct 42 ms 16100 KB Output is correct
32 Correct 39 ms 16508 KB Output is correct
33 Correct 41 ms 16472 KB Output is correct
34 Correct 39 ms 16488 KB Output is correct
35 Correct 6 ms 11220 KB Output is correct
36 Correct 5 ms 11220 KB Output is correct
37 Correct 39 ms 16448 KB Output is correct
38 Correct 38 ms 16476 KB Output is correct
39 Correct 40 ms 16564 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11232 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct
3 Correct 6 ms 11228 KB Output is correct
4 Correct 5 ms 11164 KB Output is correct
5 Correct 54 ms 20580 KB Output is correct
6 Correct 51 ms 16872 KB Output is correct
7 Correct 58 ms 20644 KB Output is correct
8 Correct 38 ms 16520 KB Output is correct
9 Correct 54 ms 20644 KB Output is correct
10 Correct 60 ms 17972 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11220 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct
3 Correct 5 ms 11220 KB Output is correct
4 Correct 6 ms 11220 KB Output is correct
5 Correct 6 ms 11220 KB Output is correct
6 Correct 6 ms 11220 KB Output is correct
7 Correct 6 ms 11220 KB Output is correct
8 Correct 6 ms 11156 KB Output is correct
9 Correct 6 ms 11220 KB Output is correct
10 Correct 6 ms 11220 KB Output is correct
11 Correct 6 ms 11220 KB Output is correct
12 Correct 5 ms 11220 KB Output is correct
13 Correct 6 ms 11220 KB Output is correct
14 Correct 6 ms 11248 KB Output is correct
15 Correct 6 ms 11220 KB Output is correct
16 Correct 6 ms 11220 KB Output is correct
17 Correct 6 ms 11220 KB Output is correct
18 Correct 6 ms 11220 KB Output is correct
19 Correct 5 ms 11244 KB Output is correct
20 Correct 6 ms 11220 KB Output is correct
21 Correct 6 ms 11240 KB Output is correct
22 Correct 6 ms 11244 KB Output is correct
23 Correct 7 ms 11348 KB Output is correct
24 Correct 6 ms 11220 KB Output is correct
25 Correct 6 ms 11220 KB Output is correct
26 Correct 6 ms 11248 KB Output is correct
27 Correct 6 ms 11220 KB Output is correct
28 Correct 6 ms 11220 KB Output is correct
29 Correct 6 ms 11220 KB Output is correct
30 Correct 6 ms 11220 KB Output is correct
31 Correct 6 ms 11236 KB Output is correct
32 Correct 6 ms 11244 KB Output is correct
33 Correct 5 ms 11220 KB Output is correct
34 Correct 6 ms 11248 KB Output is correct
35 Correct 6 ms 11220 KB Output is correct
36 Correct 5 ms 11220 KB Output is correct
37 Correct 6 ms 11220 KB Output is correct
38 Correct 6 ms 11152 KB Output is correct
39 Correct 6 ms 11220 KB Output is correct
40 Correct 6 ms 11172 KB Output is correct
41 Correct 6 ms 11248 KB Output is correct
42 Correct 6 ms 11256 KB Output is correct
43 Correct 6 ms 11252 KB Output is correct
44 Correct 6 ms 11348 KB Output is correct
45 Correct 6 ms 11348 KB Output is correct
46 Correct 6 ms 11220 KB Output is correct
47 Correct 6 ms 11220 KB Output is correct
48 Correct 6 ms 11220 KB Output is correct
49 Correct 6 ms 11252 KB Output is correct
50 Correct 6 ms 11220 KB Output is correct
51 Correct 6 ms 11220 KB Output is correct
52 Correct 6 ms 11348 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11220 KB Output is correct
2 Correct 6 ms 11220 KB Output is correct
3 Correct 5 ms 11220 KB Output is correct
4 Correct 6 ms 11220 KB Output is correct
5 Correct 6 ms 11220 KB Output is correct
6 Correct 6 ms 11220 KB Output is correct
7 Correct 6 ms 11220 KB Output is correct
8 Correct 6 ms 11156 KB Output is correct
9 Correct 6 ms 11220 KB Output is correct
10 Correct 6 ms 11220 KB Output is correct
11 Correct 6 ms 11220 KB Output is correct
12 Correct 5 ms 11220 KB Output is correct
13 Correct 6 ms 11220 KB Output is correct
14 Correct 6 ms 11248 KB Output is correct
15 Correct 6 ms 11220 KB Output is correct
16 Correct 6 ms 11220 KB Output is correct
17 Correct 6 ms 11220 KB Output is correct
18 Correct 6 ms 11220 KB Output is correct
19 Correct 5 ms 11244 KB Output is correct
20 Correct 6 ms 11220 KB Output is correct
21 Correct 6 ms 11240 KB Output is correct
22 Correct 6 ms 11244 KB Output is correct
23 Correct 7 ms 11348 KB Output is correct
24 Correct 6 ms 11220 KB Output is correct
25 Correct 6 ms 11220 KB Output is correct
26 Correct 6 ms 11248 KB Output is correct
27 Correct 6 ms 11220 KB Output is correct
28 Correct 6 ms 11220 KB Output is correct
29 Correct 6 ms 11220 KB Output is correct
30 Correct 6 ms 11220 KB Output is correct
31 Correct 6 ms 11236 KB Output is correct
32 Correct 6 ms 11244 KB Output is correct
33 Correct 5 ms 11220 KB Output is correct
34 Correct 6 ms 11248 KB Output is correct
35 Correct 6 ms 11220 KB Output is correct
36 Correct 5 ms 11220 KB Output is correct
37 Correct 5 ms 11156 KB Output is correct
38 Correct 6 ms 11252 KB Output is correct
39 Correct 5 ms 11220 KB Output is correct
40 Correct 6 ms 11220 KB Output is correct
41 Correct 6 ms 11220 KB Output is correct
42 Correct 6 ms 11240 KB Output is correct
43 Correct 6 ms 11220 KB Output is correct
44 Correct 7 ms 11240 KB Output is correct
45 Correct 7 ms 11244 KB Output is correct
46 Correct 6 ms 11220 KB Output is correct
47 Correct 6 ms 11220 KB Output is correct
48 Correct 6 ms 11220 KB Output is correct
49 Correct 6 ms 11220 KB Output is correct
50 Correct 6 ms 11220 KB Output is correct
51 Correct 6 ms 11220 KB Output is correct
52 Correct 7 ms 11276 KB Output is correct
53 Correct 6 ms 11248 KB Output is correct
54 Correct 9 ms 11988 KB Output is correct
55 Correct 9 ms 11860 KB Output is correct
56 Correct 43 ms 16220 KB Output is correct
57 Correct 38 ms 16192 KB Output is correct
58 Correct 44 ms 16096 KB Output is correct
59 Correct 38 ms 16580 KB Output is correct
60 Correct 43 ms 16236 KB Output is correct
61 Correct 38 ms 16232 KB Output is correct
62 Correct 38 ms 16592 KB Output is correct
63 Correct 39 ms 16584 KB Output is correct
64 Correct 38 ms 16492 KB Output is correct
65 Correct 42 ms 16100 KB Output is correct
66 Correct 39 ms 16508 KB Output is correct
67 Correct 41 ms 16472 KB Output is correct
68 Correct 39 ms 16488 KB Output is correct
69 Correct 6 ms 11220 KB Output is correct
70 Correct 5 ms 11220 KB Output is correct
71 Correct 39 ms 16448 KB Output is correct
72 Correct 38 ms 16476 KB Output is correct
73 Correct 40 ms 16564 KB Output is correct
74 Correct 6 ms 11232 KB Output is correct
75 Correct 6 ms 11220 KB Output is correct
76 Correct 6 ms 11228 KB Output is correct
77 Correct 5 ms 11164 KB Output is correct
78 Correct 54 ms 20580 KB Output is correct
79 Correct 51 ms 16872 KB Output is correct
80 Correct 58 ms 20644 KB Output is correct
81 Correct 38 ms 16520 KB Output is correct
82 Correct 54 ms 20644 KB Output is correct
83 Correct 60 ms 17972 KB Output is correct
84 Correct 6 ms 11220 KB Output is correct
85 Correct 6 ms 11152 KB Output is correct
86 Correct 6 ms 11220 KB Output is correct
87 Correct 6 ms 11172 KB Output is correct
88 Correct 6 ms 11248 KB Output is correct
89 Correct 6 ms 11256 KB Output is correct
90 Correct 6 ms 11252 KB Output is correct
91 Correct 6 ms 11348 KB Output is correct
92 Correct 6 ms 11348 KB Output is correct
93 Correct 6 ms 11220 KB Output is correct
94 Correct 6 ms 11220 KB Output is correct
95 Correct 6 ms 11220 KB Output is correct
96 Correct 6 ms 11252 KB Output is correct
97 Correct 6 ms 11220 KB Output is correct
98 Correct 6 ms 11220 KB Output is correct
99 Correct 6 ms 11348 KB Output is correct
100 Correct 7 ms 11348 KB Output is correct
101 Correct 11 ms 12152 KB Output is correct
102 Correct 11 ms 11860 KB Output is correct
103 Correct 77 ms 20728 KB Output is correct
104 Correct 60 ms 20732 KB Output is correct
105 Correct 72 ms 18328 KB Output is correct
106 Correct 56 ms 20684 KB Output is correct
107 Correct 60 ms 17216 KB Output is correct
108 Correct 58 ms 17356 KB Output is correct
109 Correct 43 ms 16896 KB Output is correct
110 Correct 38 ms 16504 KB Output is correct
111 Correct 60 ms 20044 KB Output is correct
112 Correct 73 ms 19408 KB Output is correct
113 Correct 54 ms 17100 KB Output is correct
114 Correct 55 ms 20684 KB Output is correct
115 Correct 56 ms 20680 KB Output is correct