oj.uz

Submission #298303

# Submission time Handle Problem Language Result Execution time Memory
298303 2020-09-12T17:03:20 Z Rayaabualjamal Arranging Shoes (IOI19_shoes) C++14
100 / 100
 606 ms 30072 KB 
#include "shoes.h"
#include <cassert>

#include <iostream> 
#include <iterator>
#include <cmath>
#include <algorithm>
#include <vector> 
#include <map> 
#include <cstdio>
#define rep(i,a,b) for(int i = a; i<b; i++)
#define per(i,a,b) for(int i = a; i>=b; i--)
#define pb push_back
#define se second
using namespace std;
void update(vector <int>&tre, int v, int l, int r, int pos, int val){
	if(l==r){
		tre[v]=val;
		return;
	}
	int m = (l+r)/2;
	if(pos<=m){
		update(tre, v+v, l, m, pos, val);
	}else{
		update(tre, v+v+1, m+1, r, pos, val);
	}
	tre[v] = tre[v+v] + tre[v+v+1];
}
int sum(vector <int>&tre, int v, int l, int r, int rl, int rr){
	if(r<rl||rr<l){
		return 0;
	}
	if(rl<=l&&r<=rr){
		return tre[v];
	}
	int m = (l+r)/2;
	return sum(tre, v+v, l, m, rl, rr)+sum(tre,v+v+1, m+1, r, rl , rr);
}
long long count_swaps(vector<int> s) {
	int n = s.size();
	long long ans = 0; 
	map <int, vector <int> > m;
	vector <int> tree(4*(n+4), 0);
	rep(i,0,n){
		update(tree, 1,1,n+2,i+1, 1);
	}
	rep(i,0,n){
		m[s[i]].pb(i);
	}
	for(auto& vec:m){
		reverse(vec.se.begin(), vec.se.end());
	}
	vector <int> vis(n+n, 0);
	rep(i,0,n){
		if(vis[i])continue;
		//cout << i << " ";
		if(s[i]<0){
			int pos = m[-s[i]].back();
			//cout << pos << " 1" << endl;
			ans += sum(tree, 1, 1, n+2, i+2, pos);
			update(tree, 1,1,n+2,i+1, 0);
			update(tree, 1,1,n+2,pos+1, 0);
			vis[i]=1;
			vis[pos]=1;
		}else{
			int pos = m[-s[i]].back();
			//cout << pos << " 2" << endl;
			ans += sum(tree, 1, 1, n+2, i+1, pos);
			update(tree, 1,1,n+2,i+1, 0);
			update(tree, 1,1,n+2,pos+1, 0);
			vis[i]=1;
			vis[pos]=1;
		}
		m[-s[i]].pop_back();
		m[s[i]].pop_back();
		//cout << ans << endl;
	}
	//cout << "ans: " << ans << endl;
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 1 ms 256 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 1 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 1 ms 256 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 1 ms 256 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 13 ms 1152 KB Output is correct
21 Correct 14 ms 1152 KB Output is correct
22 Correct 139 ms 7456 KB Output is correct
23 Correct 126 ms 7532 KB Output is correct
24 Correct 138 ms 7532 KB Output is correct
25 Correct 146 ms 7664 KB Output is correct
26 Correct 138 ms 7660 KB Output is correct
27 Correct 126 ms 7532 KB Output is correct
28 Correct 140 ms 7664 KB Output is correct
29 Correct 139 ms 7664 KB Output is correct
30 Correct 143 ms 7536 KB Output is correct
31 Correct 140 ms 7428 KB Output is correct
32 Correct 139 ms 7540 KB Output is correct
33 Correct 137 ms 7616 KB Output is correct
34 Correct 138 ms 7536 KB Output is correct
35 Correct 1 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 139 ms 7536 KB Output is correct
38 Correct 144 ms 7536 KB Output is correct
39 Correct 139 ms 7536 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 500 ms 28664 KB Output is correct
6 Correct 239 ms 9464 KB Output is correct
7 Correct 502 ms 28664 KB Output is correct
8 Correct 144 ms 7828 KB Output is correct
9 Correct 518 ms 28792 KB Output is correct
10 Correct 374 ms 17656 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 0 ms 256 KB Output is correct
38 Correct 1 ms 256 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 2 ms 640 KB Output is correct
43 Correct 2 ms 512 KB Output is correct
44 Correct 2 ms 512 KB Output is correct
45 Correct 2 ms 512 KB Output is correct
46 Correct 2 ms 512 KB Output is correct
47 Correct 3 ms 512 KB Output is correct
48 Correct 2 ms 384 KB Output is correct
49 Correct 2 ms 384 KB Output is correct
50 Correct 2 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 2 ms 640 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 1 ms 256 KB Output is correct
10 Correct 0 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 1 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 1 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 1 ms 256 KB Output is correct
19 Correct 1 ms 256 KB Output is correct
20 Correct 0 ms 256 KB Output is correct
21 Correct 0 ms 256 KB Output is correct
22 Correct 1 ms 256 KB Output is correct
23 Correct 1 ms 256 KB Output is correct
24 Correct 1 ms 256 KB Output is correct
25 Correct 1 ms 256 KB Output is correct
26 Correct 0 ms 256 KB Output is correct
27 Correct 0 ms 256 KB Output is correct
28 Correct 1 ms 256 KB Output is correct
29 Correct 1 ms 256 KB Output is correct
30 Correct 1 ms 256 KB Output is correct
31 Correct 1 ms 256 KB Output is correct
32 Correct 1 ms 256 KB Output is correct
33 Correct 0 ms 256 KB Output is correct
34 Correct 0 ms 256 KB Output is correct
35 Correct 0 ms 256 KB Output is correct
36 Correct 0 ms 256 KB Output is correct
37 Correct 0 ms 256 KB Output is correct
38 Correct 0 ms 256 KB Output is correct
39 Correct 1 ms 256 KB Output is correct
40 Correct 1 ms 256 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 0 ms 256 KB Output is correct
43 Correct 0 ms 256 KB Output is correct
44 Correct 0 ms 256 KB Output is correct
45 Correct 0 ms 256 KB Output is correct
46 Correct 1 ms 256 KB Output is correct
47 Correct 0 ms 256 KB Output is correct
48 Correct 1 ms 256 KB Output is correct
49 Correct 0 ms 256 KB Output is correct
50 Correct 1 ms 256 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 2 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 13 ms 1152 KB Output is correct
55 Correct 14 ms 1152 KB Output is correct
56 Correct 139 ms 7456 KB Output is correct
57 Correct 126 ms 7532 KB Output is correct
58 Correct 138 ms 7532 KB Output is correct
59 Correct 146 ms 7664 KB Output is correct
60 Correct 138 ms 7660 KB Output is correct
61 Correct 126 ms 7532 KB Output is correct
62 Correct 140 ms 7664 KB Output is correct
63 Correct 139 ms 7664 KB Output is correct
64 Correct 143 ms 7536 KB Output is correct
65 Correct 140 ms 7428 KB Output is correct
66 Correct 139 ms 7540 KB Output is correct
67 Correct 137 ms 7616 KB Output is correct
68 Correct 138 ms 7536 KB Output is correct
69 Correct 1 ms 256 KB Output is correct
70 Correct 0 ms 256 KB Output is correct
71 Correct 139 ms 7536 KB Output is correct
72 Correct 144 ms 7536 KB Output is correct
73 Correct 139 ms 7536 KB Output is correct
74 Correct 0 ms 256 KB Output is correct
75 Correct 0 ms 256 KB Output is correct
76 Correct 0 ms 256 KB Output is correct
77 Correct 0 ms 256 KB Output is correct
78 Correct 500 ms 28664 KB Output is correct
79 Correct 239 ms 9464 KB Output is correct
80 Correct 502 ms 28664 KB Output is correct
81 Correct 144 ms 7828 KB Output is correct
82 Correct 518 ms 28792 KB Output is correct
83 Correct 374 ms 17656 KB Output is correct
84 Correct 0 ms 256 KB Output is correct
85 Correct 1 ms 256 KB Output is correct
86 Correct 1 ms 384 KB Output is correct
87 Correct 1 ms 384 KB Output is correct
88 Correct 2 ms 640 KB Output is correct
89 Correct 2 ms 640 KB Output is correct
90 Correct 2 ms 512 KB Output is correct
91 Correct 2 ms 512 KB Output is correct
92 Correct 2 ms 512 KB Output is correct
93 Correct 2 ms 512 KB Output is correct
94 Correct 3 ms 512 KB Output is correct
95 Correct 2 ms 384 KB Output is correct
96 Correct 2 ms 384 KB Output is correct
97 Correct 2 ms 384 KB Output is correct
98 Correct 1 ms 384 KB Output is correct
99 Correct 2 ms 640 KB Output is correct
100 Correct 3 ms 640 KB Output is correct
101 Correct 29 ms 3200 KB Output is correct
102 Correct 22 ms 1536 KB Output is correct
103 Correct 606 ms 29848 KB Output is correct
104 Correct 478 ms 29688 KB Output is correct
105 Correct 469 ms 20472 KB Output is correct
106 Correct 531 ms 29688 KB Output is correct
107 Correct 239 ms 11200 KB Output is correct
108 Correct 267 ms 13304 KB Output is correct
109 Correct 150 ms 8880 KB Output is correct
110 Correct 139 ms 8816 KB Output is correct
111 Correct 481 ms 27384 KB Output is correct
112 Correct 539 ms 24952 KB Output is correct
113 Correct 268 ms 11384 KB Output is correct
114 Correct 497 ms 29816 KB Output is correct
115 Correct 505 ms 30072 KB Output is correct