oj.uz

Submission #907255

# Submission time Handle Problem Language Result Execution time Memory
907255 2024-01-15T10:21:34 Z Captain_Georgia Arranging Shoes (IOI19_shoes) C++17
100 / 100
 271 ms 20048 KB 
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
 
const int N = 4e5 + 545 , inf = 1e9 + 12 , mod = 1e9 + 7;
 
   #include "shoes.h"
 
struct segtree {
	ll tree[N*3] ;
	void built(int v,int l,int r) {
		if(l == r) {
			tree[v] = 1;
			return;
		}
		int mid = (l + r)/2;
		built(v*2 , l , mid);
		built(v*2 + 1 , mid+1 , r);
		tree[v] = tree[v*2] + tree[v*2 + 1];
	}
	void update(int v,int l,int r,int ml,int val) {
		if(r < ml || ml < l || l > r) {
			return;
		}
		if(l == r && ml == l) {
			tree[v] += val;
			return;
		}
		int mid = (l + r)/2;
		update(v*2  , l , mid , ml , val);
		update(v*2 + 1 , mid+ 1 , r , ml , val);
		tree[v] = tree[v*2] + tree[v*2 + 1];
	}
	ll get(int v,int l,int r,int ml,int mr) {
		if(r < ml || mr < l) {
			return 0;
		}
		if(ml <= l && r <= mr) {
			return tree[v];
		}
		int mid = (l + r)/2;
		return (get(v*2 , l , mid , ml , mr) + get(v*2 + 1 , mid + 1 , r , ml ,mr));
	}
};
 
segtree S;
 
ll count_swaps(vector<int> v) {
	int n = ((int)v.size())/2;
	set<pair<ll , ll>> s;
	v.push_back(0LL);
	for(int i = 2*n;i>=1;i--){
		v[i] = v[i-1];
		s.insert({v[i] , i});
	}
	S.built(1,1,2*n);
	ll res = 0;
	for(int i=1;i<=2*n;i++) {
		if(s.find({v[i] , i}) != s.end()){
			auto it = s.lower_bound({-v[i] , i});
			if((*it).second - 2 >= i) {
				res += S.get(1,1,2*n,i + 1,(*it).second-1);
			}
			if(v[i] > 0) {
				res++;
			}
			S.update(1 , 1 , 2*n , i , -1);
			S.update(1 , 1 , 2*n , (*it).second, -1);
			if(s.find({v[i], i}) != s.end()){
				s.erase(s.find({v[i], i}));
			}
			if(s.find({-v[i], (*it).second}) != s.end()){
				s.erase(s.find({-v[i], (*it).second}));
			}
		}
	}
	assert(res >= 0);
	return res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 444 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 444 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 448 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 408 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 2 ms 600 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 11 ms 4120 KB Output is correct
21 Correct 10 ms 4184 KB Output is correct
22 Correct 105 ms 19960 KB Output is correct
23 Correct 118 ms 20004 KB Output is correct
24 Correct 106 ms 20048 KB Output is correct
25 Correct 128 ms 19636 KB Output is correct
26 Correct 106 ms 20032 KB Output is correct
27 Correct 123 ms 19776 KB Output is correct
28 Correct 125 ms 19880 KB Output is correct
29 Correct 125 ms 19804 KB Output is correct
30 Correct 139 ms 19864 KB Output is correct
31 Correct 102 ms 20044 KB Output is correct
32 Correct 123 ms 19960 KB Output is correct
33 Correct 126 ms 19812 KB Output is correct
34 Correct 135 ms 20036 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 124 ms 19948 KB Output is correct
38 Correct 127 ms 19852 KB Output is correct
39 Correct 132 ms 20028 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 197 ms 19880 KB Output is correct
6 Correct 210 ms 19996 KB Output is correct
7 Correct 207 ms 19888 KB Output is correct
8 Correct 102 ms 20036 KB Output is correct
9 Correct 201 ms 20036 KB Output is correct
10 Correct 230 ms 20032 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 444 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 444 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 448 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 2 ms 536 KB Output is correct
42 Correct 2 ms 604 KB Output is correct
43 Correct 3 ms 604 KB Output is correct
44 Correct 2 ms 604 KB Output is correct
45 Correct 2 ms 452 KB Output is correct
46 Correct 2 ms 448 KB Output is correct
47 Correct 2 ms 600 KB Output is correct
48 Correct 2 ms 856 KB Output is correct
49 Correct 2 ms 604 KB Output is correct
50 Correct 1 ms 604 KB Output is correct
51 Correct 1 ms 600 KB Output is correct
52 Correct 2 ms 604 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 444 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 444 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 448 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 408 KB Output is correct
49 Correct 1 ms 344 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 2 ms 600 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 11 ms 4120 KB Output is correct
55 Correct 10 ms 4184 KB Output is correct
56 Correct 105 ms 19960 KB Output is correct
57 Correct 118 ms 20004 KB Output is correct
58 Correct 106 ms 20048 KB Output is correct
59 Correct 128 ms 19636 KB Output is correct
60 Correct 106 ms 20032 KB Output is correct
61 Correct 123 ms 19776 KB Output is correct
62 Correct 125 ms 19880 KB Output is correct
63 Correct 125 ms 19804 KB Output is correct
64 Correct 139 ms 19864 KB Output is correct
65 Correct 102 ms 20044 KB Output is correct
66 Correct 123 ms 19960 KB Output is correct
67 Correct 126 ms 19812 KB Output is correct
68 Correct 135 ms 20036 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 124 ms 19948 KB Output is correct
72 Correct 127 ms 19852 KB Output is correct
73 Correct 132 ms 20028 KB Output is correct
74 Correct 1 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 1 ms 348 KB Output is correct
77 Correct 1 ms 348 KB Output is correct
78 Correct 197 ms 19880 KB Output is correct
79 Correct 210 ms 19996 KB Output is correct
80 Correct 207 ms 19888 KB Output is correct
81 Correct 102 ms 20036 KB Output is correct
82 Correct 201 ms 20036 KB Output is correct
83 Correct 230 ms 20032 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 0 ms 348 KB Output is correct
86 Correct 1 ms 348 KB Output is correct
87 Correct 1 ms 348 KB Output is correct
88 Correct 2 ms 536 KB Output is correct
89 Correct 2 ms 604 KB Output is correct
90 Correct 3 ms 604 KB Output is correct
91 Correct 2 ms 604 KB Output is correct
92 Correct 2 ms 452 KB Output is correct
93 Correct 2 ms 448 KB Output is correct
94 Correct 2 ms 600 KB Output is correct
95 Correct 2 ms 856 KB Output is correct
96 Correct 2 ms 604 KB Output is correct
97 Correct 1 ms 604 KB Output is correct
98 Correct 1 ms 600 KB Output is correct
99 Correct 2 ms 604 KB Output is correct
100 Correct 2 ms 604 KB Output is correct
101 Correct 19 ms 3932 KB Output is correct
102 Correct 18 ms 3932 KB Output is correct
103 Correct 271 ms 20036 KB Output is correct
104 Correct 182 ms 19904 KB Output is correct
105 Correct 238 ms 20036 KB Output is correct
106 Correct 197 ms 19984 KB Output is correct
107 Correct 205 ms 20012 KB Output is correct
108 Correct 211 ms 19856 KB Output is correct
109 Correct 104 ms 20036 KB Output is correct
110 Correct 124 ms 20032 KB Output is correct
111 Correct 240 ms 19996 KB Output is correct
112 Correct 231 ms 19848 KB Output is correct
113 Correct 220 ms 19960 KB Output is correct
114 Correct 197 ms 20036 KB Output is correct
115 Correct 199 ms 19780 KB Output is correct