oj.uz

Submission #897890

# Submission time Handle Problem Language Result Execution time Memory
897890 2024-01-03T23:39:35 Z Rainmaker2627 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 245 ms 275420 KB 
#include<bits/stdc++.h>
#include "shoes.h"
using namespace std;

struct segtree {
	int n;
	vector<int> st;

	segtree(int a) {
		n=a;
		while (n&(n-1)) n++;
		vector<int> b(2*n);
		swap(b, st);
	}

	int query(int ql, int qr, int v=1, int nl=1, int nr=-1) {
		if (nr==-1) { nr=this->n; ql++; qr++; }
		if (ql>nr || qr<nl) return 0;
		if (ql<=nl && qr>=nr) return st[v];
		return query(ql, qr, 2*v, nl, (nl+nr)/2) + query(ql, qr, 2*v+1, (nl+nr)/2+1, nr);
	}

	void update(int p) {
		for (p+=n; p>0; p/=2) st[p]++;
	}

	int operator[](int a) { return st[a+n]; }
};

long long count_swaps(vector<int> s) {
	int n = s.size();
	queue<int> left[n+1], right[n+1];
	segtree st(n);

	for (int i = 0; i < n; ++i) {
		if (s[i]<0) {
			left[-s[i]].push(i);
		} else right[s[i]].push(i);
	}

	long long ans=0;
	for (int i = 0; i < n; ++i) {
		while (i<n && st[i]) i++;
		if (i>=n) break;
		if (s[i]<0) {
			ans+=right[-s[i]].front()-i-1-st.query(i, right[-s[i]].front());
			st.update(right[-s[i]].front());
			right[-s[i]].pop(); left[-s[i]].pop();
		} else {
			ans+=left[s[i]].front()-i-st.query(i, left[s[i]].front());
			st.update(left[s[i]].front());
			left[s[i]].pop(); right[s[i]].pop();
		}
	}

	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 600 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 432 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 544 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 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 0 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 452 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 1 ms 1116 KB Output is correct
18 Correct 2 ms 3164 KB Output is correct
19 Correct 2 ms 3160 KB Output is correct
20 Correct 18 ms 27740 KB Output is correct
21 Correct 20 ms 27740 KB Output is correct
22 Correct 191 ms 275420 KB Output is correct
23 Correct 174 ms 275176 KB Output is correct
24 Correct 190 ms 275280 KB Output is correct
25 Correct 183 ms 274988 KB Output is correct
26 Correct 199 ms 275264 KB Output is correct
27 Correct 176 ms 275268 KB Output is correct
28 Correct 180 ms 275204 KB Output is correct
29 Correct 216 ms 275420 KB Output is correct
30 Correct 181 ms 275412 KB Output is correct
31 Correct 183 ms 275284 KB Output is correct
32 Correct 185 ms 275400 KB Output is correct
33 Correct 197 ms 275208 KB Output is correct
34 Correct 195 ms 275376 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 187 ms 275284 KB Output is correct
38 Correct 184 ms 275392 KB Output is correct
39 Correct 196 ms 275280 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 436 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 233 ms 274356 KB Output is correct
6 Correct 201 ms 274512 KB Output is correct
7 Correct 224 ms 274512 KB Output is correct
8 Correct 182 ms 275360 KB Output is correct
9 Correct 222 ms 274520 KB Output is correct
10 Correct 220 ms 274560 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 600 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 432 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 1 ms 356 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 600 KB Output is correct
40 Correct 1 ms 1116 KB Output is correct
41 Correct 2 ms 2908 KB Output is correct
42 Correct 2 ms 3164 KB Output is correct
43 Correct 2 ms 3160 KB Output is correct
44 Correct 2 ms 3164 KB Output is correct
45 Correct 2 ms 3000 KB Output is correct
46 Correct 3 ms 3164 KB Output is correct
47 Correct 2 ms 2904 KB Output is correct
48 Correct 2 ms 3164 KB Output is correct
49 Correct 2 ms 3164 KB Output is correct
50 Correct 2 ms 3164 KB Output is correct
51 Correct 2 ms 3160 KB Output is correct
52 Correct 2 ms 2904 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 600 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 432 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 544 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 1 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 0 ms 344 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 452 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 604 KB Output is correct
51 Correct 1 ms 1116 KB Output is correct
52 Correct 2 ms 3164 KB Output is correct
53 Correct 2 ms 3160 KB Output is correct
54 Correct 18 ms 27740 KB Output is correct
55 Correct 20 ms 27740 KB Output is correct
56 Correct 191 ms 275420 KB Output is correct
57 Correct 174 ms 275176 KB Output is correct
58 Correct 190 ms 275280 KB Output is correct
59 Correct 183 ms 274988 KB Output is correct
60 Correct 199 ms 275264 KB Output is correct
61 Correct 176 ms 275268 KB Output is correct
62 Correct 180 ms 275204 KB Output is correct
63 Correct 216 ms 275420 KB Output is correct
64 Correct 181 ms 275412 KB Output is correct
65 Correct 183 ms 275284 KB Output is correct
66 Correct 185 ms 275400 KB Output is correct
67 Correct 197 ms 275208 KB Output is correct
68 Correct 195 ms 275376 KB Output is correct
69 Correct 0 ms 348 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 187 ms 275284 KB Output is correct
72 Correct 184 ms 275392 KB Output is correct
73 Correct 196 ms 275280 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 436 KB Output is correct
76 Correct 0 ms 348 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 233 ms 274356 KB Output is correct
79 Correct 201 ms 274512 KB Output is correct
80 Correct 224 ms 274512 KB Output is correct
81 Correct 182 ms 275360 KB Output is correct
82 Correct 222 ms 274520 KB Output is correct
83 Correct 220 ms 274560 KB Output is correct
84 Correct 1 ms 356 KB Output is correct
85 Correct 1 ms 344 KB Output is correct
86 Correct 0 ms 600 KB Output is correct
87 Correct 1 ms 1116 KB Output is correct
88 Correct 2 ms 2908 KB Output is correct
89 Correct 2 ms 3164 KB Output is correct
90 Correct 2 ms 3160 KB Output is correct
91 Correct 2 ms 3164 KB Output is correct
92 Correct 2 ms 3000 KB Output is correct
93 Correct 3 ms 3164 KB Output is correct
94 Correct 2 ms 2904 KB Output is correct
95 Correct 2 ms 3164 KB Output is correct
96 Correct 2 ms 3164 KB Output is correct
97 Correct 2 ms 3164 KB Output is correct
98 Correct 2 ms 3160 KB Output is correct
99 Correct 2 ms 2904 KB Output is correct
100 Correct 2 ms 3064 KB Output is correct
101 Correct 23 ms 27880 KB Output is correct
102 Correct 19 ms 27736 KB Output is correct
103 Correct 245 ms 274676 KB Output is correct
104 Correct 243 ms 274568 KB Output is correct
105 Correct 219 ms 274516 KB Output is correct
106 Correct 217 ms 274512 KB Output is correct
107 Correct 225 ms 274512 KB Output is correct
108 Correct 197 ms 274540 KB Output is correct
109 Correct 184 ms 275280 KB Output is correct
110 Correct 186 ms 275184 KB Output is correct
111 Correct 241 ms 274812 KB Output is correct
112 Correct 219 ms 274480 KB Output is correct
113 Correct 201 ms 274512 KB Output is correct
114 Correct 228 ms 274436 KB Output is correct
115 Correct 223 ms 274564 KB Output is correct