oj.uz

Submission #783479

# Submission time Handle Problem Language Result Execution time Memory
783479 2023-07-15T01:10:20 Z bane Arranging Shoes (IOI19_shoes) C++17
100 / 100
 245 ms 276080 KB 
#include<bits/stdc++.h>
#include<queue>
#include "shoes.h"
using namespace std;
const int nax = (int)1e6+1;
int n;

struct Segtree{

	int t[nax * 3];
	
	void built(int l = 0, int r = n - 1, int k = 1){
		if (l == r){
			t[k] = 1;
			return;
		}
		int mid = (l+r)/2;
		built(l,mid,k*2);
		built(mid+1,r,k*2+1);
		t[k] = t[k * 2] + t[k * 2 + 1];
	}

	void trigger(int pos, int l = 0, int r = n - 1, int k = 1){
		if (l == r){
			t[k] = 0;
			return;
		}

		int mid = (l+r) / 2;
		if (pos <= mid) trigger(pos,l,mid,k*2);
		else  trigger(pos,mid+1,r,k*2+1);
		t[k] = t[k * 2] + t[k * 2 + 1];
	}

	int range_get(int a, int b, int l = 0, int r = n - 1, int k = 1){
		if (a > b)return 0;
		if (l >= a && r <= b)return t[k];
		if(l > b || r < a)return 0;
		int mid = (l+r)/2;
		return range_get(a,b,l,mid,k*2)+range_get(a,b,mid+1,r,k*2+1);
	}

} st;


long long count_swaps(std::vector<int> s) {
	n = (int)s.size();
	st.built();
	vector<int>used(n+1,0);
	queue<int>Left[n+1];
	queue<int>Right[n+1];
	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++){
		if (used[i])continue;
		if (s[i] < 0){
			//left
			Left[-s[i]].pop();
			assert(Right[s[i]*(-1)].size()>0);
			int R = Right[-s[i]].front();
			Right[-s[i]].pop();
			st.trigger(R);
			used[i]=1;
			used[R]=1;
			ans += st.range_get(i+1,R);
			st.trigger(i);
		}else{
			//right
			Right[s[i]].pop();
			assert(Left[s[i]].size()>0);
			int L = Left[s[i]].front();
			Left[s[i]].pop();
			st.trigger(L);
			used[i]=1;
			used[L]=1;
			ans += st.range_get(i,L);
			//printf("query : %d\n", st.range_get(i,L));
			st.trigger(i);
		}
		//printf("%lld\n", ans);
		
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 1108 KB Output is correct
18 Correct 2 ms 3028 KB Output is correct
19 Correct 2 ms 3028 KB Output is correct
20 Correct 17 ms 27732 KB Output is correct
21 Correct 20 ms 27816 KB Output is correct
22 Correct 219 ms 274848 KB Output is correct
23 Correct 191 ms 276028 KB Output is correct
24 Correct 192 ms 276052 KB Output is correct
25 Correct 187 ms 275788 KB Output is correct
26 Correct 186 ms 276012 KB Output is correct
27 Correct 178 ms 275876 KB Output is correct
28 Correct 195 ms 275952 KB Output is correct
29 Correct 230 ms 276012 KB Output is correct
30 Correct 187 ms 276048 KB Output is correct
31 Correct 189 ms 276032 KB Output is correct
32 Correct 195 ms 275988 KB Output is correct
33 Correct 188 ms 275788 KB Output is correct
34 Correct 187 ms 276032 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 193 ms 276068 KB Output is correct
38 Correct 186 ms 275972 KB Output is correct
39 Correct 187 ms 276044 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 216 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 220 ms 274024 KB Output is correct
6 Correct 197 ms 275216 KB Output is correct
7 Correct 223 ms 275168 KB Output is correct
8 Correct 186 ms 276080 KB Output is correct
9 Correct 226 ms 275140 KB Output is correct
10 Correct 212 ms 275196 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 1 ms 596 KB Output is correct
40 Correct 1 ms 1108 KB Output is correct
41 Correct 2 ms 3004 KB Output is correct
42 Correct 2 ms 3028 KB Output is correct
43 Correct 3 ms 3032 KB Output is correct
44 Correct 2 ms 3000 KB Output is correct
45 Correct 2 ms 3028 KB Output is correct
46 Correct 2 ms 3028 KB Output is correct
47 Correct 2 ms 3004 KB Output is correct
48 Correct 2 ms 3000 KB Output is correct
49 Correct 2 ms 3028 KB Output is correct
50 Correct 2 ms 3028 KB Output is correct
51 Correct 2 ms 3028 KB Output is correct
52 Correct 2 ms 3020 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 0 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 0 ms 212 KB Output is correct
41 Correct 0 ms 212 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 0 ms 212 KB Output is correct
44 Correct 0 ms 212 KB Output is correct
45 Correct 1 ms 212 KB Output is correct
46 Correct 0 ms 212 KB Output is correct
47 Correct 0 ms 212 KB Output is correct
48 Correct 0 ms 212 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 596 KB Output is correct
51 Correct 1 ms 1108 KB Output is correct
52 Correct 2 ms 3028 KB Output is correct
53 Correct 2 ms 3028 KB Output is correct
54 Correct 17 ms 27732 KB Output is correct
55 Correct 20 ms 27816 KB Output is correct
56 Correct 219 ms 274848 KB Output is correct
57 Correct 191 ms 276028 KB Output is correct
58 Correct 192 ms 276052 KB Output is correct
59 Correct 187 ms 275788 KB Output is correct
60 Correct 186 ms 276012 KB Output is correct
61 Correct 178 ms 275876 KB Output is correct
62 Correct 195 ms 275952 KB Output is correct
63 Correct 230 ms 276012 KB Output is correct
64 Correct 187 ms 276048 KB Output is correct
65 Correct 189 ms 276032 KB Output is correct
66 Correct 195 ms 275988 KB Output is correct
67 Correct 188 ms 275788 KB Output is correct
68 Correct 187 ms 276032 KB Output is correct
69 Correct 1 ms 212 KB Output is correct
70 Correct 0 ms 212 KB Output is correct
71 Correct 193 ms 276068 KB Output is correct
72 Correct 186 ms 275972 KB Output is correct
73 Correct 187 ms 276044 KB Output is correct
74 Correct 1 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 1 ms 216 KB Output is correct
77 Correct 1 ms 304 KB Output is correct
78 Correct 220 ms 274024 KB Output is correct
79 Correct 197 ms 275216 KB Output is correct
80 Correct 223 ms 275168 KB Output is correct
81 Correct 186 ms 276080 KB Output is correct
82 Correct 226 ms 275140 KB Output is correct
83 Correct 212 ms 275196 KB Output is correct
84 Correct 1 ms 212 KB Output is correct
85 Correct 1 ms 340 KB Output is correct
86 Correct 1 ms 596 KB Output is correct
87 Correct 1 ms 1108 KB Output is correct
88 Correct 2 ms 3004 KB Output is correct
89 Correct 2 ms 3028 KB Output is correct
90 Correct 3 ms 3032 KB Output is correct
91 Correct 2 ms 3000 KB Output is correct
92 Correct 2 ms 3028 KB Output is correct
93 Correct 2 ms 3028 KB Output is correct
94 Correct 2 ms 3004 KB Output is correct
95 Correct 2 ms 3000 KB Output is correct
96 Correct 2 ms 3028 KB Output is correct
97 Correct 2 ms 3028 KB Output is correct
98 Correct 2 ms 3028 KB Output is correct
99 Correct 2 ms 3020 KB Output is correct
100 Correct 2 ms 3028 KB Output is correct
101 Correct 28 ms 27692 KB Output is correct
102 Correct 21 ms 27832 KB Output is correct
103 Correct 245 ms 275148 KB Output is correct
104 Correct 213 ms 275108 KB Output is correct
105 Correct 225 ms 275276 KB Output is correct
106 Correct 222 ms 275124 KB Output is correct
107 Correct 197 ms 275136 KB Output is correct
108 Correct 203 ms 275184 KB Output is correct
109 Correct 183 ms 276076 KB Output is correct
110 Correct 192 ms 276028 KB Output is correct
111 Correct 228 ms 275224 KB Output is correct
112 Correct 230 ms 275124 KB Output is correct
113 Correct 209 ms 275124 KB Output is correct
114 Correct 224 ms 275220 KB Output is correct
115 Correct 217 ms 275104 KB Output is correct