oj.uz

Submission #971156

# Submission time Handle Problem Language Result Execution time Memory
971156 2024-04-28T04:52:37 Z yellowtoad Arranging Shoes (IOI19_shoes) C++17
100 / 100
 238 ms 283584 KB 
#include "shoes.h"
#include <iostream>
#include <queue>
#define f first
#define s second
#define int long long
using namespace std;

int p[200010], cnt, nxt, tmp[200010], lll[200010], rrr[200010];
priority_queue<pair<int,int>,vector<pair<int,int>>,greater<pair<int,int>>> ll, rr;
queue<int> l[200010];
queue<int> r[200010];

void merge(int l, int r) {
	if (l >= r) return;
	int mid = (l+r)/2;
	merge(l,mid);
	merge(mid+1,r);
	int x = l, y = mid+1;
	for (int i = l; i <= r; i++) {
		if ((y > r) || ((x <= mid) && (p[x] < p[y]))) tmp[i] = p[x++];
		else {
			cnt += mid-x+1;
			tmp[i] = p[y++];
		}
	}
	for (int i = l; i <= r; i++) p[i] = tmp[i];
}

long long count_swaps(std::vector<signed> a) {
	for (int i = 0; i < a.size(); i++) {
		if (a[i] < 0) {
			ll.push({i,-a[i]});
			l[-a[i]].push(i);
		} else {
			rr.push({i,a[i]});
			r[a[i]].push(i);
		}
	}
	for (int i = 0; i < a.size(); i++) {
		while (lll[ll.top().s]) {
			lll[ll.top().s]--;
			ll.pop();
		}
		while (rrr[rr.top().s]) {
			rrr[rr.top().s]--;
			rr.pop();
		}
		if (i%2 == 0) {
			if (ll.top() < rr.top()) {
				p[ll.top().f] = i;
				nxt = ll.top().s;
				ll.pop();
				l[nxt].pop();
				rrr[nxt]++;
			} else {
				nxt = rr.top().s;
				rr.pop();
				p[l[nxt].front()] = i;
				l[nxt].pop();
				lll[nxt]++;
			}
		} else {
			p[r[nxt].front()] = i;
			r[nxt].pop();
		}
	}
	merge(0,a.size()-1);
	return cnt;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:31:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:40:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 275508 KB Output is correct
2 Correct 129 ms 275280 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 275508 KB Output is correct
2 Correct 129 ms 275280 KB Output is correct
3 Correct 131 ms 275280 KB Output is correct
4 Correct 131 ms 275280 KB Output is correct
5 Correct 142 ms 275284 KB Output is correct
6 Correct 133 ms 275472 KB Output is correct
7 Correct 131 ms 275796 KB Output is correct
8 Correct 134 ms 275284 KB Output is correct
9 Correct 138 ms 275284 KB Output is correct
10 Correct 131 ms 275436 KB Output is correct
11 Correct 128 ms 275480 KB Output is correct
12 Correct 130 ms 275280 KB Output is correct
13 Correct 127 ms 275380 KB Output is correct
14 Correct 128 ms 275364 KB Output is correct
15 Correct 128 ms 275284 KB Output is correct
16 Correct 131 ms 275280 KB Output is correct
17 Correct 149 ms 275464 KB Output is correct
18 Correct 131 ms 275388 KB Output is correct
19 Correct 127 ms 275280 KB Output is correct
20 Correct 129 ms 275336 KB Output is correct
21 Correct 131 ms 275436 KB Output is correct
22 Correct 131 ms 275720 KB Output is correct
23 Correct 141 ms 275280 KB Output is correct
24 Correct 131 ms 275428 KB Output is correct
25 Correct 134 ms 275480 KB Output is correct
26 Correct 134 ms 275280 KB Output is correct
27 Correct 129 ms 275628 KB Output is correct
28 Correct 135 ms 275488 KB Output is correct
29 Correct 131 ms 275284 KB Output is correct
30 Correct 128 ms 275516 KB Output is correct
31 Correct 127 ms 275272 KB Output is correct
32 Correct 127 ms 275480 KB Output is correct
33 Correct 129 ms 275388 KB Output is correct
34 Correct 132 ms 275284 KB Output is correct
35 Correct 131 ms 275284 KB Output is correct
36 Correct 129 ms 275284 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 275508 KB Output is correct
2 Correct 129 ms 275280 KB Output is correct
3 Correct 133 ms 275656 KB Output is correct
4 Correct 146 ms 275384 KB Output is correct
5 Correct 132 ms 275780 KB Output is correct
6 Correct 127 ms 275392 KB Output is correct
7 Correct 131 ms 275504 KB Output is correct
8 Correct 129 ms 275508 KB Output is correct
9 Correct 140 ms 275540 KB Output is correct
10 Correct 129 ms 275384 KB Output is correct
11 Correct 127 ms 275400 KB Output is correct
12 Correct 131 ms 275364 KB Output is correct
13 Correct 128 ms 275284 KB Output is correct
14 Correct 130 ms 275464 KB Output is correct
15 Correct 128 ms 275280 KB Output is correct
16 Correct 133 ms 275480 KB Output is correct
17 Correct 143 ms 275536 KB Output is correct
18 Correct 142 ms 275532 KB Output is correct
19 Correct 142 ms 275448 KB Output is correct
20 Correct 145 ms 276060 KB Output is correct
21 Correct 150 ms 276096 KB Output is correct
22 Correct 190 ms 280816 KB Output is correct
23 Correct 187 ms 282108 KB Output is correct
24 Correct 187 ms 280688 KB Output is correct
25 Correct 182 ms 283584 KB Output is correct
26 Correct 185 ms 281088 KB Output is correct
27 Correct 189 ms 282256 KB Output is correct
28 Correct 193 ms 282052 KB Output is correct
29 Correct 179 ms 282052 KB Output is correct
30 Correct 183 ms 282052 KB Output is correct
31 Correct 187 ms 280816 KB Output is correct
32 Correct 197 ms 282080 KB Output is correct
33 Correct 192 ms 283472 KB Output is correct
34 Correct 195 ms 283328 KB Output is correct
35 Correct 132 ms 275316 KB Output is correct
36 Correct 127 ms 275280 KB Output is correct
37 Correct 184 ms 282272 KB Output is correct
38 Correct 182 ms 282052 KB Output is correct
39 Correct 177 ms 282376 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 154 ms 275296 KB Output is correct
2 Correct 130 ms 275280 KB Output is correct
3 Correct 132 ms 275280 KB Output is correct
4 Correct 132 ms 275492 KB Output is correct
5 Correct 219 ms 279360 KB Output is correct
6 Correct 197 ms 279292 KB Output is correct
7 Correct 224 ms 279444 KB Output is correct
8 Correct 191 ms 282140 KB Output is correct
9 Correct 217 ms 279360 KB Output is correct
10 Correct 219 ms 279272 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 275508 KB Output is correct
2 Correct 129 ms 275280 KB Output is correct
3 Correct 131 ms 275280 KB Output is correct
4 Correct 131 ms 275280 KB Output is correct
5 Correct 142 ms 275284 KB Output is correct
6 Correct 133 ms 275472 KB Output is correct
7 Correct 131 ms 275796 KB Output is correct
8 Correct 134 ms 275284 KB Output is correct
9 Correct 138 ms 275284 KB Output is correct
10 Correct 131 ms 275436 KB Output is correct
11 Correct 128 ms 275480 KB Output is correct
12 Correct 130 ms 275280 KB Output is correct
13 Correct 127 ms 275380 KB Output is correct
14 Correct 128 ms 275364 KB Output is correct
15 Correct 128 ms 275284 KB Output is correct
16 Correct 131 ms 275280 KB Output is correct
17 Correct 149 ms 275464 KB Output is correct
18 Correct 131 ms 275388 KB Output is correct
19 Correct 127 ms 275280 KB Output is correct
20 Correct 129 ms 275336 KB Output is correct
21 Correct 131 ms 275436 KB Output is correct
22 Correct 131 ms 275720 KB Output is correct
23 Correct 141 ms 275280 KB Output is correct
24 Correct 131 ms 275428 KB Output is correct
25 Correct 134 ms 275480 KB Output is correct
26 Correct 134 ms 275280 KB Output is correct
27 Correct 129 ms 275628 KB Output is correct
28 Correct 135 ms 275488 KB Output is correct
29 Correct 131 ms 275284 KB Output is correct
30 Correct 128 ms 275516 KB Output is correct
31 Correct 127 ms 275272 KB Output is correct
32 Correct 127 ms 275480 KB Output is correct
33 Correct 129 ms 275388 KB Output is correct
34 Correct 132 ms 275284 KB Output is correct
35 Correct 131 ms 275284 KB Output is correct
36 Correct 129 ms 275284 KB Output is correct
37 Correct 131 ms 275284 KB Output is correct
38 Correct 131 ms 275284 KB Output is correct
39 Correct 133 ms 275280 KB Output is correct
40 Correct 148 ms 275360 KB Output is correct
41 Correct 143 ms 275540 KB Output is correct
42 Correct 143 ms 275536 KB Output is correct
43 Correct 150 ms 275412 KB Output is correct
44 Correct 146 ms 275540 KB Output is correct
45 Correct 145 ms 275372 KB Output is correct
46 Correct 146 ms 275372 KB Output is correct
47 Correct 141 ms 275528 KB Output is correct
48 Correct 143 ms 275580 KB Output is correct
49 Correct 143 ms 275536 KB Output is correct
50 Correct 147 ms 275576 KB Output is correct
51 Correct 147 ms 275472 KB Output is correct
52 Correct 146 ms 275456 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 137 ms 275508 KB Output is correct
2 Correct 129 ms 275280 KB Output is correct
3 Correct 131 ms 275280 KB Output is correct
4 Correct 131 ms 275280 KB Output is correct
5 Correct 142 ms 275284 KB Output is correct
6 Correct 133 ms 275472 KB Output is correct
7 Correct 131 ms 275796 KB Output is correct
8 Correct 134 ms 275284 KB Output is correct
9 Correct 138 ms 275284 KB Output is correct
10 Correct 131 ms 275436 KB Output is correct
11 Correct 128 ms 275480 KB Output is correct
12 Correct 130 ms 275280 KB Output is correct
13 Correct 127 ms 275380 KB Output is correct
14 Correct 128 ms 275364 KB Output is correct
15 Correct 128 ms 275284 KB Output is correct
16 Correct 131 ms 275280 KB Output is correct
17 Correct 149 ms 275464 KB Output is correct
18 Correct 131 ms 275388 KB Output is correct
19 Correct 127 ms 275280 KB Output is correct
20 Correct 129 ms 275336 KB Output is correct
21 Correct 131 ms 275436 KB Output is correct
22 Correct 131 ms 275720 KB Output is correct
23 Correct 141 ms 275280 KB Output is correct
24 Correct 131 ms 275428 KB Output is correct
25 Correct 134 ms 275480 KB Output is correct
26 Correct 134 ms 275280 KB Output is correct
27 Correct 129 ms 275628 KB Output is correct
28 Correct 135 ms 275488 KB Output is correct
29 Correct 131 ms 275284 KB Output is correct
30 Correct 128 ms 275516 KB Output is correct
31 Correct 127 ms 275272 KB Output is correct
32 Correct 127 ms 275480 KB Output is correct
33 Correct 129 ms 275388 KB Output is correct
34 Correct 132 ms 275284 KB Output is correct
35 Correct 131 ms 275284 KB Output is correct
36 Correct 129 ms 275284 KB Output is correct
37 Correct 133 ms 275656 KB Output is correct
38 Correct 146 ms 275384 KB Output is correct
39 Correct 132 ms 275780 KB Output is correct
40 Correct 127 ms 275392 KB Output is correct
41 Correct 131 ms 275504 KB Output is correct
42 Correct 129 ms 275508 KB Output is correct
43 Correct 140 ms 275540 KB Output is correct
44 Correct 129 ms 275384 KB Output is correct
45 Correct 127 ms 275400 KB Output is correct
46 Correct 131 ms 275364 KB Output is correct
47 Correct 128 ms 275284 KB Output is correct
48 Correct 130 ms 275464 KB Output is correct
49 Correct 128 ms 275280 KB Output is correct
50 Correct 133 ms 275480 KB Output is correct
51 Correct 143 ms 275536 KB Output is correct
52 Correct 142 ms 275532 KB Output is correct
53 Correct 142 ms 275448 KB Output is correct
54 Correct 145 ms 276060 KB Output is correct
55 Correct 150 ms 276096 KB Output is correct
56 Correct 190 ms 280816 KB Output is correct
57 Correct 187 ms 282108 KB Output is correct
58 Correct 187 ms 280688 KB Output is correct
59 Correct 182 ms 283584 KB Output is correct
60 Correct 185 ms 281088 KB Output is correct
61 Correct 189 ms 282256 KB Output is correct
62 Correct 193 ms 282052 KB Output is correct
63 Correct 179 ms 282052 KB Output is correct
64 Correct 183 ms 282052 KB Output is correct
65 Correct 187 ms 280816 KB Output is correct
66 Correct 197 ms 282080 KB Output is correct
67 Correct 192 ms 283472 KB Output is correct
68 Correct 195 ms 283328 KB Output is correct
69 Correct 132 ms 275316 KB Output is correct
70 Correct 127 ms 275280 KB Output is correct
71 Correct 184 ms 282272 KB Output is correct
72 Correct 182 ms 282052 KB Output is correct
73 Correct 177 ms 282376 KB Output is correct
74 Correct 154 ms 275296 KB Output is correct
75 Correct 130 ms 275280 KB Output is correct
76 Correct 132 ms 275280 KB Output is correct
77 Correct 132 ms 275492 KB Output is correct
78 Correct 219 ms 279360 KB Output is correct
79 Correct 197 ms 279292 KB Output is correct
80 Correct 224 ms 279444 KB Output is correct
81 Correct 191 ms 282140 KB Output is correct
82 Correct 217 ms 279360 KB Output is correct
83 Correct 219 ms 279272 KB Output is correct
84 Correct 131 ms 275284 KB Output is correct
85 Correct 131 ms 275284 KB Output is correct
86 Correct 133 ms 275280 KB Output is correct
87 Correct 148 ms 275360 KB Output is correct
88 Correct 143 ms 275540 KB Output is correct
89 Correct 143 ms 275536 KB Output is correct
90 Correct 150 ms 275412 KB Output is correct
91 Correct 146 ms 275540 KB Output is correct
92 Correct 145 ms 275372 KB Output is correct
93 Correct 146 ms 275372 KB Output is correct
94 Correct 141 ms 275528 KB Output is correct
95 Correct 143 ms 275580 KB Output is correct
96 Correct 143 ms 275536 KB Output is correct
97 Correct 147 ms 275576 KB Output is correct
98 Correct 147 ms 275472 KB Output is correct
99 Correct 146 ms 275456 KB Output is correct
100 Correct 156 ms 275536 KB Output is correct
101 Correct 142 ms 276176 KB Output is correct
102 Correct 141 ms 276092 KB Output is correct
103 Correct 231 ms 281188 KB Output is correct
104 Correct 227 ms 280580 KB Output is correct
105 Correct 237 ms 281180 KB Output is correct
106 Correct 229 ms 281408 KB Output is correct
107 Correct 213 ms 281060 KB Output is correct
108 Correct 201 ms 281192 KB Output is correct
109 Correct 180 ms 283328 KB Output is correct
110 Correct 179 ms 283404 KB Output is correct
111 Correct 238 ms 281104 KB Output is correct
112 Correct 226 ms 281156 KB Output is correct
113 Correct 194 ms 280560 KB Output is correct
114 Correct 227 ms 281180 KB Output is correct
115 Correct 229 ms 281176 KB Output is correct