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Submission #304727

# Submission time Handle Problem Language Result Execution time Memory
304727 2020-09-21T19:19:12 Z kjain_1810 Arranging Shoes (IOI19_shoes) C++17
100 / 100
 273 ms 141444 KB 
#include "shoes.h"
#include<bits/stdc++.h>

typedef long long ll;
using namespace std;

const int N = 1e5 + 5;

int n;
ll segt[8 * N];
queue<int>vec[2 * N];

inline int lt(int x){return 2 * x;}
inline int rt(int x){return 2 * x + 1;}

void upd(int nd, int s, int e, int idx) {
	if(s > idx || e < idx)
		return;
	if(s == e) {
		segt[nd] += 1;
		return;
	}
	int m = (s + e) / 2;
	upd(lt(nd), s, m, idx);
	upd(rt(nd), m + 1, e, idx);
	segt[nd] = segt[lt(nd)] + segt[rt(nd)];
}

ll query(int nd, int s, int e, int l, int r) {
	if(s > r || e < l)
		return 0;
	if(s >= l && e <= r)
		return segt[nd];
	int m = (s + e) / 2;
	return query(lt(nd), s, m, l, r) + query(rt(nd), m + 1, e, l, r);
}

long long count_swaps(vector<int> s) {
	ll ans = 0;
	n = s.size();
	for(int a = 0; a < n; a++){
		s[a] += n / 2;
		vec[s[a]].push(a);
	}
	for(int a = 0; a < n; a++) {
		if(query(1, 1, n, a, a) == 1)
			continue;
		int target;
		if(s[a] > n)
			target = (-(s[a] - n / 2) + n / 2);
		else
			target = (-(s[a] - n / 2) + n / 2);
		int idx = vec[target].front();
		vec[target].pop();
		vec[s[a]].pop();
		ll toadd;
		if(s[a] < target)
			toadd = (idx - a - 1 - query(1, 1, n, a, idx));
		else
			toadd = (idx - a - query(1, 1, n, a, idx));
		ans += toadd;
		// printf("%d %d %d %d %lld\n", a, s[a], target, idx, toadd);
		upd(1, 1, n, idx);
	}
	return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 134904 KB Output is correct
2 Correct 93 ms 134904 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 134904 KB Output is correct
2 Correct 93 ms 134904 KB Output is correct
3 Correct 95 ms 134996 KB Output is correct
4 Correct 94 ms 134908 KB Output is correct
5 Correct 93 ms 134916 KB Output is correct
6 Correct 95 ms 134892 KB Output is correct
7 Correct 94 ms 135032 KB Output is correct
8 Correct 94 ms 134904 KB Output is correct
9 Correct 93 ms 134980 KB Output is correct
10 Correct 94 ms 134904 KB Output is correct
11 Correct 96 ms 134904 KB Output is correct
12 Correct 95 ms 134904 KB Output is correct
13 Correct 95 ms 135032 KB Output is correct
14 Correct 94 ms 134904 KB Output is correct
15 Correct 95 ms 134904 KB Output is correct
16 Correct 97 ms 134904 KB Output is correct
17 Correct 95 ms 134904 KB Output is correct
18 Correct 93 ms 134904 KB Output is correct
19 Correct 93 ms 135012 KB Output is correct
20 Correct 93 ms 135012 KB Output is correct
21 Correct 96 ms 134904 KB Output is correct
22 Correct 94 ms 134904 KB Output is correct
23 Correct 94 ms 134904 KB Output is correct
24 Correct 93 ms 134904 KB Output is correct
25 Correct 96 ms 134936 KB Output is correct
26 Correct 92 ms 134904 KB Output is correct
27 Correct 92 ms 134904 KB Output is correct
28 Correct 94 ms 134904 KB Output is correct
29 Correct 93 ms 134904 KB Output is correct
30 Correct 93 ms 134904 KB Output is correct
31 Correct 93 ms 134904 KB Output is correct
32 Correct 93 ms 134904 KB Output is correct
33 Correct 96 ms 134904 KB Output is correct
34 Correct 92 ms 134924 KB Output is correct
35 Correct 92 ms 134904 KB Output is correct
36 Correct 93 ms 134904 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 134904 KB Output is correct
2 Correct 93 ms 134904 KB Output is correct
3 Correct 95 ms 135032 KB Output is correct
4 Correct 94 ms 134904 KB Output is correct
5 Correct 95 ms 134904 KB Output is correct
6 Correct 95 ms 134908 KB Output is correct
7 Correct 95 ms 135032 KB Output is correct
8 Correct 94 ms 135032 KB Output is correct
9 Correct 95 ms 135032 KB Output is correct
10 Correct 94 ms 134980 KB Output is correct
11 Correct 95 ms 134904 KB Output is correct
12 Correct 93 ms 134952 KB Output is correct
13 Correct 101 ms 135160 KB Output is correct
14 Correct 95 ms 134904 KB Output is correct
15 Correct 96 ms 134904 KB Output is correct
16 Correct 94 ms 134936 KB Output is correct
17 Correct 103 ms 135032 KB Output is correct
18 Correct 102 ms 135032 KB Output is correct
19 Correct 105 ms 135032 KB Output is correct
20 Correct 110 ms 135672 KB Output is correct
21 Correct 112 ms 135672 KB Output is correct
22 Correct 205 ms 141432 KB Output is correct
23 Correct 195 ms 141444 KB Output is correct
24 Correct 203 ms 141432 KB Output is correct
25 Correct 201 ms 139640 KB Output is correct
26 Correct 208 ms 141432 KB Output is correct
27 Correct 192 ms 141432 KB Output is correct
28 Correct 199 ms 139512 KB Output is correct
29 Correct 203 ms 139512 KB Output is correct
30 Correct 203 ms 139512 KB Output is correct
31 Correct 204 ms 141432 KB Output is correct
32 Correct 207 ms 139640 KB Output is correct
33 Correct 196 ms 139384 KB Output is correct
34 Correct 200 ms 139512 KB Output is correct
35 Correct 96 ms 134904 KB Output is correct
36 Correct 98 ms 134904 KB Output is correct
37 Correct 204 ms 139640 KB Output is correct
38 Correct 201 ms 139512 KB Output is correct
39 Correct 208 ms 139640 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 135016 KB Output is correct
2 Correct 94 ms 134908 KB Output is correct
3 Correct 95 ms 134904 KB Output is correct
4 Correct 98 ms 134888 KB Output is correct
5 Correct 242 ms 138616 KB Output is correct
6 Correct 218 ms 138564 KB Output is correct
7 Correct 245 ms 138744 KB Output is correct
8 Correct 202 ms 139512 KB Output is correct
9 Correct 246 ms 138616 KB Output is correct
10 Correct 238 ms 138616 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 134904 KB Output is correct
2 Correct 93 ms 134904 KB Output is correct
3 Correct 95 ms 134996 KB Output is correct
4 Correct 94 ms 134908 KB Output is correct
5 Correct 93 ms 134916 KB Output is correct
6 Correct 95 ms 134892 KB Output is correct
7 Correct 94 ms 135032 KB Output is correct
8 Correct 94 ms 134904 KB Output is correct
9 Correct 93 ms 134980 KB Output is correct
10 Correct 94 ms 134904 KB Output is correct
11 Correct 96 ms 134904 KB Output is correct
12 Correct 95 ms 134904 KB Output is correct
13 Correct 95 ms 135032 KB Output is correct
14 Correct 94 ms 134904 KB Output is correct
15 Correct 95 ms 134904 KB Output is correct
16 Correct 97 ms 134904 KB Output is correct
17 Correct 95 ms 134904 KB Output is correct
18 Correct 93 ms 134904 KB Output is correct
19 Correct 93 ms 135012 KB Output is correct
20 Correct 93 ms 135012 KB Output is correct
21 Correct 96 ms 134904 KB Output is correct
22 Correct 94 ms 134904 KB Output is correct
23 Correct 94 ms 134904 KB Output is correct
24 Correct 93 ms 134904 KB Output is correct
25 Correct 96 ms 134936 KB Output is correct
26 Correct 92 ms 134904 KB Output is correct
27 Correct 92 ms 134904 KB Output is correct
28 Correct 94 ms 134904 KB Output is correct
29 Correct 93 ms 134904 KB Output is correct
30 Correct 93 ms 134904 KB Output is correct
31 Correct 93 ms 134904 KB Output is correct
32 Correct 93 ms 134904 KB Output is correct
33 Correct 96 ms 134904 KB Output is correct
34 Correct 92 ms 134924 KB Output is correct
35 Correct 92 ms 134904 KB Output is correct
36 Correct 93 ms 134904 KB Output is correct
37 Correct 91 ms 134908 KB Output is correct
38 Correct 96 ms 134904 KB Output is correct
39 Correct 91 ms 135032 KB Output is correct
40 Correct 94 ms 134928 KB Output is correct
41 Correct 96 ms 135032 KB Output is correct
42 Correct 95 ms 135032 KB Output is correct
43 Correct 96 ms 135032 KB Output is correct
44 Correct 96 ms 135032 KB Output is correct
45 Correct 95 ms 134972 KB Output is correct
46 Correct 96 ms 135032 KB Output is correct
47 Correct 96 ms 135032 KB Output is correct
48 Correct 96 ms 135032 KB Output is correct
49 Correct 97 ms 135032 KB Output is correct
50 Correct 103 ms 135032 KB Output is correct
51 Correct 105 ms 135032 KB Output is correct
52 Correct 97 ms 135032 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 134904 KB Output is correct
2 Correct 93 ms 134904 KB Output is correct
3 Correct 95 ms 134996 KB Output is correct
4 Correct 94 ms 134908 KB Output is correct
5 Correct 93 ms 134916 KB Output is correct
6 Correct 95 ms 134892 KB Output is correct
7 Correct 94 ms 135032 KB Output is correct
8 Correct 94 ms 134904 KB Output is correct
9 Correct 93 ms 134980 KB Output is correct
10 Correct 94 ms 134904 KB Output is correct
11 Correct 96 ms 134904 KB Output is correct
12 Correct 95 ms 134904 KB Output is correct
13 Correct 95 ms 135032 KB Output is correct
14 Correct 94 ms 134904 KB Output is correct
15 Correct 95 ms 134904 KB Output is correct
16 Correct 97 ms 134904 KB Output is correct
17 Correct 95 ms 134904 KB Output is correct
18 Correct 93 ms 134904 KB Output is correct
19 Correct 93 ms 135012 KB Output is correct
20 Correct 93 ms 135012 KB Output is correct
21 Correct 96 ms 134904 KB Output is correct
22 Correct 94 ms 134904 KB Output is correct
23 Correct 94 ms 134904 KB Output is correct
24 Correct 93 ms 134904 KB Output is correct
25 Correct 96 ms 134936 KB Output is correct
26 Correct 92 ms 134904 KB Output is correct
27 Correct 92 ms 134904 KB Output is correct
28 Correct 94 ms 134904 KB Output is correct
29 Correct 93 ms 134904 KB Output is correct
30 Correct 93 ms 134904 KB Output is correct
31 Correct 93 ms 134904 KB Output is correct
32 Correct 93 ms 134904 KB Output is correct
33 Correct 96 ms 134904 KB Output is correct
34 Correct 92 ms 134924 KB Output is correct
35 Correct 92 ms 134904 KB Output is correct
36 Correct 93 ms 134904 KB Output is correct
37 Correct 95 ms 135032 KB Output is correct
38 Correct 94 ms 134904 KB Output is correct
39 Correct 95 ms 134904 KB Output is correct
40 Correct 95 ms 134908 KB Output is correct
41 Correct 95 ms 135032 KB Output is correct
42 Correct 94 ms 135032 KB Output is correct
43 Correct 95 ms 135032 KB Output is correct
44 Correct 94 ms 134980 KB Output is correct
45 Correct 95 ms 134904 KB Output is correct
46 Correct 93 ms 134952 KB Output is correct
47 Correct 101 ms 135160 KB Output is correct
48 Correct 95 ms 134904 KB Output is correct
49 Correct 96 ms 134904 KB Output is correct
50 Correct 94 ms 134936 KB Output is correct
51 Correct 103 ms 135032 KB Output is correct
52 Correct 102 ms 135032 KB Output is correct
53 Correct 105 ms 135032 KB Output is correct
54 Correct 110 ms 135672 KB Output is correct
55 Correct 112 ms 135672 KB Output is correct
56 Correct 205 ms 141432 KB Output is correct
57 Correct 195 ms 141444 KB Output is correct
58 Correct 203 ms 141432 KB Output is correct
59 Correct 201 ms 139640 KB Output is correct
60 Correct 208 ms 141432 KB Output is correct
61 Correct 192 ms 141432 KB Output is correct
62 Correct 199 ms 139512 KB Output is correct
63 Correct 203 ms 139512 KB Output is correct
64 Correct 203 ms 139512 KB Output is correct
65 Correct 204 ms 141432 KB Output is correct
66 Correct 207 ms 139640 KB Output is correct
67 Correct 196 ms 139384 KB Output is correct
68 Correct 200 ms 139512 KB Output is correct
69 Correct 96 ms 134904 KB Output is correct
70 Correct 98 ms 134904 KB Output is correct
71 Correct 204 ms 139640 KB Output is correct
72 Correct 201 ms 139512 KB Output is correct
73 Correct 208 ms 139640 KB Output is correct
74 Correct 94 ms 135016 KB Output is correct
75 Correct 94 ms 134908 KB Output is correct
76 Correct 95 ms 134904 KB Output is correct
77 Correct 98 ms 134888 KB Output is correct
78 Correct 242 ms 138616 KB Output is correct
79 Correct 218 ms 138564 KB Output is correct
80 Correct 245 ms 138744 KB Output is correct
81 Correct 202 ms 139512 KB Output is correct
82 Correct 246 ms 138616 KB Output is correct
83 Correct 238 ms 138616 KB Output is correct
84 Correct 91 ms 134908 KB Output is correct
85 Correct 96 ms 134904 KB Output is correct
86 Correct 91 ms 135032 KB Output is correct
87 Correct 94 ms 134928 KB Output is correct
88 Correct 96 ms 135032 KB Output is correct
89 Correct 95 ms 135032 KB Output is correct
90 Correct 96 ms 135032 KB Output is correct
91 Correct 96 ms 135032 KB Output is correct
92 Correct 95 ms 134972 KB Output is correct
93 Correct 96 ms 135032 KB Output is correct
94 Correct 96 ms 135032 KB Output is correct
95 Correct 96 ms 135032 KB Output is correct
96 Correct 97 ms 135032 KB Output is correct
97 Correct 103 ms 135032 KB Output is correct
98 Correct 105 ms 135032 KB Output is correct
99 Correct 97 ms 135032 KB Output is correct
100 Correct 94 ms 135032 KB Output is correct
101 Correct 106 ms 135672 KB Output is correct
102 Correct 106 ms 135672 KB Output is correct
103 Correct 273 ms 140696 KB Output is correct
104 Correct 244 ms 140676 KB Output is correct
105 Correct 249 ms 140792 KB Output is correct
106 Correct 239 ms 138616 KB Output is correct
107 Correct 223 ms 140664 KB Output is correct
108 Correct 231 ms 140768 KB Output is correct
109 Correct 203 ms 139512 KB Output is correct
110 Correct 201 ms 139512 KB Output is correct
111 Correct 241 ms 138692 KB Output is correct
112 Correct 259 ms 140668 KB Output is correct
113 Correct 243 ms 138692 KB Output is correct
114 Correct 241 ms 138616 KB Output is correct
115 Correct 246 ms 138740 KB Output is correct