oj.uz

Submission #500285

# Submission time Handle Problem Language Result Execution time Memory
500285 2021-12-30T15:33:58 Z pavement Arranging Shoes (IOI19_shoes) C++17
100 / 100
 865 ms 351428 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

typedef long long ll;

int seg[400005];
ll ans;
bool ed[400005];
vector<int> s;
queue<int> has[400005];
tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ft[400005];

inline int ls(int x) { return x & -x; }

pair<int, int> qry(int p, int x) {
	pair<int, int> r = make_pair(0, 0);
	p = s.size() - p + 2;
	for (; p; p -= ls(p)) {
		r.first += ft[p].order_of_key(x);
		r.second += ft[p].size() - ft[p].order_of_key(x);
	}
	return r;
}

void upd(int p, int v) {
	p = s.size() - p + 2;
	for (; p <= s.size(); p += ls(p)) ft[p].insert(v);
}

ll count_swaps(vector<int> _s) {
	s = _s;
	for (int i = 0; i < s.size(); i++) {
		if (!has[-s[i] + s.size() / 2].empty()) {
			seg[i] = has[-s[i] + s.size() / 2].front();
			ed[i] = 1;
			if (s[i] < 0) ans++;
			has[-s[i] + s.size() / 2].pop();
		} else has[s[i] + s.size() / 2].push(i);
	}
	for (int i = 0; i < s.size(); i++) {
		if (!ed[i]) continue;
		pair<int, int> tmp = qry(seg[i] + 1, seg[i]);
		upd(i, seg[i]);
		ans += (ll)tmp.first + (ll)tmp.second * 2ll;
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'void upd(int, int)':
shoes.cpp:31:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  for (; p <= s.size(); p += ls(p)) ft[p].insert(v);
      |         ~~^~~~~~~~~~~
shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:36:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |  for (int i = 0; i < s.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:44:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |  for (int i = 0; i < s.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 300868 KB Output is correct
2 Correct 175 ms 300804 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 300868 KB Output is correct
2 Correct 175 ms 300804 KB Output is correct
3 Correct 178 ms 300892 KB Output is correct
4 Correct 178 ms 300856 KB Output is correct
5 Correct 179 ms 300792 KB Output is correct
6 Correct 179 ms 300876 KB Output is correct
7 Correct 177 ms 300856 KB Output is correct
8 Correct 175 ms 300764 KB Output is correct
9 Correct 177 ms 300840 KB Output is correct
10 Correct 182 ms 300820 KB Output is correct
11 Correct 180 ms 300892 KB Output is correct
12 Correct 173 ms 300808 KB Output is correct
13 Correct 182 ms 300840 KB Output is correct
14 Correct 177 ms 300852 KB Output is correct
15 Correct 180 ms 300880 KB Output is correct
16 Correct 177 ms 300800 KB Output is correct
17 Correct 176 ms 300868 KB Output is correct
18 Correct 179 ms 300824 KB Output is correct
19 Correct 176 ms 300796 KB Output is correct
20 Correct 179 ms 300812 KB Output is correct
21 Correct 179 ms 300832 KB Output is correct
22 Correct 173 ms 300792 KB Output is correct
23 Correct 181 ms 300868 KB Output is correct
24 Correct 176 ms 301000 KB Output is correct
25 Correct 177 ms 300880 KB Output is correct
26 Correct 182 ms 300928 KB Output is correct
27 Correct 175 ms 300872 KB Output is correct
28 Correct 186 ms 300776 KB Output is correct
29 Correct 177 ms 300860 KB Output is correct
30 Correct 175 ms 300836 KB Output is correct
31 Correct 175 ms 300840 KB Output is correct
32 Correct 176 ms 300868 KB Output is correct
33 Correct 180 ms 300840 KB Output is correct
34 Correct 177 ms 300812 KB Output is correct
35 Correct 179 ms 300764 KB Output is correct
36 Correct 179 ms 300828 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 300868 KB Output is correct
2 Correct 175 ms 300804 KB Output is correct
3 Correct 175 ms 300840 KB Output is correct
4 Correct 184 ms 300844 KB Output is correct
5 Correct 179 ms 300856 KB Output is correct
6 Correct 184 ms 300872 KB Output is correct
7 Correct 177 ms 300868 KB Output is correct
8 Correct 179 ms 300852 KB Output is correct
9 Correct 175 ms 300824 KB Output is correct
10 Correct 182 ms 300952 KB Output is correct
11 Correct 175 ms 300880 KB Output is correct
12 Correct 184 ms 300756 KB Output is correct
13 Correct 196 ms 300776 KB Output is correct
14 Correct 173 ms 300812 KB Output is correct
15 Correct 178 ms 300768 KB Output is correct
16 Correct 186 ms 300824 KB Output is correct
17 Correct 180 ms 300900 KB Output is correct
18 Correct 188 ms 301124 KB Output is correct
19 Correct 187 ms 301136 KB Output is correct
20 Correct 219 ms 304932 KB Output is correct
21 Correct 231 ms 304920 KB Output is correct
22 Correct 433 ms 349004 KB Output is correct
23 Correct 456 ms 351312 KB Output is correct
24 Correct 436 ms 349144 KB Output is correct
25 Correct 517 ms 351020 KB Output is correct
26 Correct 445 ms 349032 KB Output is correct
27 Correct 451 ms 351180 KB Output is correct
28 Correct 506 ms 351196 KB Output is correct
29 Correct 498 ms 351276 KB Output is correct
30 Correct 504 ms 351188 KB Output is correct
31 Correct 428 ms 349056 KB Output is correct
32 Correct 509 ms 351200 KB Output is correct
33 Correct 534 ms 351056 KB Output is correct
34 Correct 499 ms 351268 KB Output is correct
35 Correct 199 ms 300872 KB Output is correct
36 Correct 185 ms 300792 KB Output is correct
37 Correct 529 ms 351172 KB Output is correct
38 Correct 511 ms 351376 KB Output is correct
39 Correct 491 ms 351172 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 181 ms 300816 KB Output is correct
2 Correct 197 ms 300916 KB Output is correct
3 Correct 183 ms 300892 KB Output is correct
4 Correct 183 ms 300760 KB Output is correct
5 Correct 525 ms 351176 KB Output is correct
6 Correct 551 ms 351124 KB Output is correct
7 Correct 549 ms 351152 KB Output is correct
8 Correct 529 ms 351320 KB Output is correct
9 Correct 548 ms 351172 KB Output is correct
10 Correct 552 ms 351268 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 300868 KB Output is correct
2 Correct 175 ms 300804 KB Output is correct
3 Correct 178 ms 300892 KB Output is correct
4 Correct 178 ms 300856 KB Output is correct
5 Correct 179 ms 300792 KB Output is correct
6 Correct 179 ms 300876 KB Output is correct
7 Correct 177 ms 300856 KB Output is correct
8 Correct 175 ms 300764 KB Output is correct
9 Correct 177 ms 300840 KB Output is correct
10 Correct 182 ms 300820 KB Output is correct
11 Correct 180 ms 300892 KB Output is correct
12 Correct 173 ms 300808 KB Output is correct
13 Correct 182 ms 300840 KB Output is correct
14 Correct 177 ms 300852 KB Output is correct
15 Correct 180 ms 300880 KB Output is correct
16 Correct 177 ms 300800 KB Output is correct
17 Correct 176 ms 300868 KB Output is correct
18 Correct 179 ms 300824 KB Output is correct
19 Correct 176 ms 300796 KB Output is correct
20 Correct 179 ms 300812 KB Output is correct
21 Correct 179 ms 300832 KB Output is correct
22 Correct 173 ms 300792 KB Output is correct
23 Correct 181 ms 300868 KB Output is correct
24 Correct 176 ms 301000 KB Output is correct
25 Correct 177 ms 300880 KB Output is correct
26 Correct 182 ms 300928 KB Output is correct
27 Correct 175 ms 300872 KB Output is correct
28 Correct 186 ms 300776 KB Output is correct
29 Correct 177 ms 300860 KB Output is correct
30 Correct 175 ms 300836 KB Output is correct
31 Correct 175 ms 300840 KB Output is correct
32 Correct 176 ms 300868 KB Output is correct
33 Correct 180 ms 300840 KB Output is correct
34 Correct 177 ms 300812 KB Output is correct
35 Correct 179 ms 300764 KB Output is correct
36 Correct 179 ms 300828 KB Output is correct
37 Correct 186 ms 300876 KB Output is correct
38 Correct 186 ms 300820 KB Output is correct
39 Correct 187 ms 300820 KB Output is correct
40 Correct 197 ms 300956 KB Output is correct
41 Correct 196 ms 301184 KB Output is correct
42 Correct 186 ms 301124 KB Output is correct
43 Correct 188 ms 301144 KB Output is correct
44 Correct 203 ms 301092 KB Output is correct
45 Correct 182 ms 301292 KB Output is correct
46 Correct 195 ms 301084 KB Output is correct
47 Correct 197 ms 301124 KB Output is correct
48 Correct 198 ms 301080 KB Output is correct
49 Correct 178 ms 301124 KB Output is correct
50 Correct 180 ms 301212 KB Output is correct
51 Correct 185 ms 301180 KB Output is correct
52 Correct 189 ms 301144 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 179 ms 300868 KB Output is correct
2 Correct 175 ms 300804 KB Output is correct
3 Correct 178 ms 300892 KB Output is correct
4 Correct 178 ms 300856 KB Output is correct
5 Correct 179 ms 300792 KB Output is correct
6 Correct 179 ms 300876 KB Output is correct
7 Correct 177 ms 300856 KB Output is correct
8 Correct 175 ms 300764 KB Output is correct
9 Correct 177 ms 300840 KB Output is correct
10 Correct 182 ms 300820 KB Output is correct
11 Correct 180 ms 300892 KB Output is correct
12 Correct 173 ms 300808 KB Output is correct
13 Correct 182 ms 300840 KB Output is correct
14 Correct 177 ms 300852 KB Output is correct
15 Correct 180 ms 300880 KB Output is correct
16 Correct 177 ms 300800 KB Output is correct
17 Correct 176 ms 300868 KB Output is correct
18 Correct 179 ms 300824 KB Output is correct
19 Correct 176 ms 300796 KB Output is correct
20 Correct 179 ms 300812 KB Output is correct
21 Correct 179 ms 300832 KB Output is correct
22 Correct 173 ms 300792 KB Output is correct
23 Correct 181 ms 300868 KB Output is correct
24 Correct 176 ms 301000 KB Output is correct
25 Correct 177 ms 300880 KB Output is correct
26 Correct 182 ms 300928 KB Output is correct
27 Correct 175 ms 300872 KB Output is correct
28 Correct 186 ms 300776 KB Output is correct
29 Correct 177 ms 300860 KB Output is correct
30 Correct 175 ms 300836 KB Output is correct
31 Correct 175 ms 300840 KB Output is correct
32 Correct 176 ms 300868 KB Output is correct
33 Correct 180 ms 300840 KB Output is correct
34 Correct 177 ms 300812 KB Output is correct
35 Correct 179 ms 300764 KB Output is correct
36 Correct 179 ms 300828 KB Output is correct
37 Correct 175 ms 300840 KB Output is correct
38 Correct 184 ms 300844 KB Output is correct
39 Correct 179 ms 300856 KB Output is correct
40 Correct 184 ms 300872 KB Output is correct
41 Correct 177 ms 300868 KB Output is correct
42 Correct 179 ms 300852 KB Output is correct
43 Correct 175 ms 300824 KB Output is correct
44 Correct 182 ms 300952 KB Output is correct
45 Correct 175 ms 300880 KB Output is correct
46 Correct 184 ms 300756 KB Output is correct
47 Correct 196 ms 300776 KB Output is correct
48 Correct 173 ms 300812 KB Output is correct
49 Correct 178 ms 300768 KB Output is correct
50 Correct 186 ms 300824 KB Output is correct
51 Correct 180 ms 300900 KB Output is correct
52 Correct 188 ms 301124 KB Output is correct
53 Correct 187 ms 301136 KB Output is correct
54 Correct 219 ms 304932 KB Output is correct
55 Correct 231 ms 304920 KB Output is correct
56 Correct 433 ms 349004 KB Output is correct
57 Correct 456 ms 351312 KB Output is correct
58 Correct 436 ms 349144 KB Output is correct
59 Correct 517 ms 351020 KB Output is correct
60 Correct 445 ms 349032 KB Output is correct
61 Correct 451 ms 351180 KB Output is correct
62 Correct 506 ms 351196 KB Output is correct
63 Correct 498 ms 351276 KB Output is correct
64 Correct 504 ms 351188 KB Output is correct
65 Correct 428 ms 349056 KB Output is correct
66 Correct 509 ms 351200 KB Output is correct
67 Correct 534 ms 351056 KB Output is correct
68 Correct 499 ms 351268 KB Output is correct
69 Correct 199 ms 300872 KB Output is correct
70 Correct 185 ms 300792 KB Output is correct
71 Correct 529 ms 351172 KB Output is correct
72 Correct 511 ms 351376 KB Output is correct
73 Correct 491 ms 351172 KB Output is correct
74 Correct 181 ms 300816 KB Output is correct
75 Correct 197 ms 300916 KB Output is correct
76 Correct 183 ms 300892 KB Output is correct
77 Correct 183 ms 300760 KB Output is correct
78 Correct 525 ms 351176 KB Output is correct
79 Correct 551 ms 351124 KB Output is correct
80 Correct 549 ms 351152 KB Output is correct
81 Correct 529 ms 351320 KB Output is correct
82 Correct 548 ms 351172 KB Output is correct
83 Correct 552 ms 351268 KB Output is correct
84 Correct 186 ms 300876 KB Output is correct
85 Correct 186 ms 300820 KB Output is correct
86 Correct 187 ms 300820 KB Output is correct
87 Correct 197 ms 300956 KB Output is correct
88 Correct 196 ms 301184 KB Output is correct
89 Correct 186 ms 301124 KB Output is correct
90 Correct 188 ms 301144 KB Output is correct
91 Correct 203 ms 301092 KB Output is correct
92 Correct 182 ms 301292 KB Output is correct
93 Correct 195 ms 301084 KB Output is correct
94 Correct 197 ms 301124 KB Output is correct
95 Correct 198 ms 301080 KB Output is correct
96 Correct 178 ms 301124 KB Output is correct
97 Correct 180 ms 301212 KB Output is correct
98 Correct 185 ms 301180 KB Output is correct
99 Correct 189 ms 301144 KB Output is correct
100 Correct 188 ms 301140 KB Output is correct
101 Correct 238 ms 305092 KB Output is correct
102 Correct 242 ms 305032 KB Output is correct
103 Correct 865 ms 351128 KB Output is correct
104 Correct 459 ms 351428 KB Output is correct
105 Correct 493 ms 349072 KB Output is correct
106 Correct 490 ms 351164 KB Output is correct
107 Correct 456 ms 349140 KB Output is correct
108 Correct 442 ms 351352 KB Output is correct
109 Correct 479 ms 351180 KB Output is correct
110 Correct 505 ms 351248 KB Output is correct
111 Correct 539 ms 351236 KB Output is correct
112 Correct 677 ms 351416 KB Output is correct
113 Correct 633 ms 351184 KB Output is correct
114 Correct 523 ms 351224 KB Output is correct
115 Correct 560 ms 351232 KB Output is correct