oj.uz

Submission #152066

# Submission time Handle Problem Language Result Execution time Memory
152066 2019-09-06T07:39:15 Z oolimry Arranging Shoes (IOI19_shoes) C++14
100 / 100
 375 ms 14280 KB 
#include <bits/stdc++.h>
using namespace std;
 
static int tree[500005];
long long N;
void update(int x){
	x += N;
	while(x > 0){
		tree[x]++;
		x >>= 1;
	}
}
 
long long query(int l, int r){
	long long ans = 0;
	for(l += N, r += N;l < r;l >>= 1, r >>= 1){
		if(l&1){
			ans += tree[l];
			l++;
		}
		if(r&1){
			r--;
			ans += tree[r];
		}
	}
	return ans;
}
long long count_swaps(std::vector<int> s) {
	long long n = s.size() / 2;
	N = 2 * n;
	long long ans = 0;
	
	set<long long> things;
	for(int i = 0;i < 2 * n;i++){
		if(s[i] < 0) s[i] = (s[i] * -1) - 1;
		else s[i] = s[i] - 1 + n;
		
		long long ss = s[i] * 1000000ll;
		things.insert(ss + i);
	}
	
	
	//for(int i = 0;i < 2 * n;i++) cout << nxt[i] << " ";
	int pos = 0;
	
	for(int i = 0;i < 2 * n;i++){
		
		if(query(i,i+1) != 0) continue;
		
		int x = s[i];
		int y = 0;
		if(x < n) y = x + n;
		else y = x - n;
		
		int l = i;
		//if(stuff[y].empty()) while(true) continue;
		long long rr = *things.lower_bound(y * 1000000ll);
		int r = rr % 1000000;
		//int r = stuff[y].front();
		//stuff[y].pop();
		//if(stuff[x].empty()) while(true) continue;
		//stuff[x].pop();
		
		
		
		int nl = l + query(l+1,2*n); 
		int nr = r + query(r+1,2*n); 
		//cout << i << " " << l << " " << r << " " << nl << " " << nr << " " << ans << "\n";
		if(x < n){
			ans += (nl - 2 * pos);
			ans += (nr - (2 * pos + 1));
		}
		else{
			ans += (nr - 2 * pos);
			ans += (nl - (2 * pos + 1));
			ans++;
		}
		
		pos++;
		
		update(l);
		update(r);
		things.erase(rr);
		//long long 
		things.erase(x * 1000000ll + i);
	}
	
	
 
	return ans;
}

Subtask #1
10.0 / 10.0

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

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 12 ms 1528 KB Output is correct
21 Correct 11 ms 1528 KB Output is correct
22 Correct 123 ms 12892 KB Output is correct
23 Correct 171 ms 14140 KB Output is correct
24 Correct 134 ms 14172 KB Output is correct
25 Correct 135 ms 13916 KB Output is correct
26 Correct 121 ms 14172 KB Output is correct
27 Correct 149 ms 13944 KB Output is correct
28 Correct 136 ms 14084 KB Output is correct
29 Correct 139 ms 14136 KB Output is correct
30 Correct 143 ms 14156 KB Output is correct
31 Correct 127 ms 14172 KB Output is correct
32 Correct 139 ms 14140 KB Output is correct
33 Correct 135 ms 13864 KB Output is correct
34 Correct 137 ms 14140 KB Output is correct
35 Correct 2 ms 376 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 139 ms 14048 KB Output is correct
38 Correct 137 ms 14200 KB Output is correct
39 Correct 139 ms 14176 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 259 ms 12832 KB Output is correct
6 Correct 255 ms 14076 KB Output is correct
7 Correct 261 ms 14068 KB Output is correct
8 Correct 121 ms 14088 KB Output is correct
9 Correct 260 ms 14024 KB Output is correct
10 Correct 260 ms 14128 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 252 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 504 KB Output is correct
42 Correct 3 ms 504 KB Output is correct
43 Correct 3 ms 504 KB Output is correct
44 Correct 3 ms 372 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 3 ms 504 KB Output is correct
47 Correct 3 ms 504 KB Output is correct
48 Correct 3 ms 376 KB Output is correct
49 Correct 3 ms 504 KB Output is correct
50 Correct 3 ms 376 KB Output is correct
51 Correct 3 ms 504 KB Output is correct
52 Correct 3 ms 376 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 256 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 504 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 252 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 380 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 2 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 256 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 2 ms 256 KB Output is correct
36 Correct 2 ms 256 KB Output is correct
37 Correct 2 ms 256 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 2 ms 376 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 256 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 2 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 2 ms 376 KB Output is correct
46 Correct 2 ms 256 KB Output is correct
47 Correct 2 ms 256 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 2 ms 256 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 3 ms 376 KB Output is correct
53 Correct 3 ms 504 KB Output is correct
54 Correct 12 ms 1528 KB Output is correct
55 Correct 11 ms 1528 KB Output is correct
56 Correct 123 ms 12892 KB Output is correct
57 Correct 171 ms 14140 KB Output is correct
58 Correct 134 ms 14172 KB Output is correct
59 Correct 135 ms 13916 KB Output is correct
60 Correct 121 ms 14172 KB Output is correct
61 Correct 149 ms 13944 KB Output is correct
62 Correct 136 ms 14084 KB Output is correct
63 Correct 139 ms 14136 KB Output is correct
64 Correct 143 ms 14156 KB Output is correct
65 Correct 127 ms 14172 KB Output is correct
66 Correct 139 ms 14140 KB Output is correct
67 Correct 135 ms 13864 KB Output is correct
68 Correct 137 ms 14140 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 256 KB Output is correct
71 Correct 139 ms 14048 KB Output is correct
72 Correct 137 ms 14200 KB Output is correct
73 Correct 139 ms 14176 KB Output is correct
74 Correct 2 ms 256 KB Output is correct
75 Correct 2 ms 252 KB Output is correct
76 Correct 2 ms 256 KB Output is correct
77 Correct 2 ms 256 KB Output is correct
78 Correct 259 ms 12832 KB Output is correct
79 Correct 255 ms 14076 KB Output is correct
80 Correct 261 ms 14068 KB Output is correct
81 Correct 121 ms 14088 KB Output is correct
82 Correct 260 ms 14024 KB Output is correct
83 Correct 260 ms 14128 KB Output is correct
84 Correct 2 ms 252 KB Output is correct
85 Correct 2 ms 376 KB Output is correct
86 Correct 2 ms 376 KB Output is correct
87 Correct 2 ms 376 KB Output is correct
88 Correct 3 ms 504 KB Output is correct
89 Correct 3 ms 504 KB Output is correct
90 Correct 3 ms 504 KB Output is correct
91 Correct 3 ms 372 KB Output is correct
92 Correct 3 ms 376 KB Output is correct
93 Correct 3 ms 504 KB Output is correct
94 Correct 3 ms 504 KB Output is correct
95 Correct 3 ms 376 KB Output is correct
96 Correct 3 ms 504 KB Output is correct
97 Correct 3 ms 376 KB Output is correct
98 Correct 3 ms 504 KB Output is correct
99 Correct 3 ms 376 KB Output is correct
100 Correct 4 ms 476 KB Output is correct
101 Correct 19 ms 1620 KB Output is correct
102 Correct 22 ms 1696 KB Output is correct
103 Correct 327 ms 14132 KB Output is correct
104 Correct 267 ms 14072 KB Output is correct
105 Correct 294 ms 14072 KB Output is correct
106 Correct 274 ms 14200 KB Output is correct
107 Correct 277 ms 14212 KB Output is correct
108 Correct 247 ms 14076 KB Output is correct
109 Correct 123 ms 14172 KB Output is correct
110 Correct 139 ms 14220 KB Output is correct
111 Correct 306 ms 14044 KB Output is correct
112 Correct 375 ms 14280 KB Output is correct
113 Correct 342 ms 14248 KB Output is correct
114 Correct 265 ms 14072 KB Output is correct
115 Correct 250 ms 14072 KB Output is correct