oj.uz

답안 #724306

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
724306 2023-04-15T04:14:59 Z QwertyPi Arranging Shoes (IOI19_shoes) C++14
100 / 100
 264 ms 33180 KB 
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 11;
struct BIT{
	int bit[N * 2];
	void add(int p, int v){
		p++;
		for(int i = p; i < N * 2; i += i & -i){
			bit[i] += v;
		}
	}
	int qry(int p){
		p++;
		int ret = 0;
		for(int i = p; i; i -= i & -i){
			ret += bit[i];
		}
		return ret;
	}
} bit;

long long count_swaps(vector<int> s) {
	map<int, vector<int>> M;
	for(int i = 0; i < s.size(); i++){
		M[s[i]].push_back(i);
	}
	long long ans = 0; vector<pair<int, int>> vp;
	for(int i = 1; i <= s.size(); i++){
		int k = M[i].size();
		for(int j = 0; j < k; j++){
			int x = M[i][j], y = M[-i][j];
			if(x < y) ans++; if(x > y) swap(x, y);
			vp.push_back({x, y});
		}
	}
	sort(vp.begin(), vp.end());
	for(int i = 0; i < s.size(); i++) bit.add(i, 1);
	for(auto i : vp){
		bit.add(i.first, -1);
		bit.add(i.second, -1);
		ans += bit.qry(i.second);
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:25:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for(int i = 0; i < s.size(); i++){
      |                 ~~^~~~~~~~~~
shoes.cpp:29:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for(int i = 1; i <= s.size(); i++){
      |                 ~~^~~~~~~~~~~
shoes.cpp:33:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   33 |    if(x < y) ans++; if(x > y) swap(x, y);
      |    ^~
shoes.cpp:33:21: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   33 |    if(x < y) ans++; if(x > y) swap(x, y);
      |                     ^~
shoes.cpp:38:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 0; i < s.size(); i++) bit.add(i, 1);
      |                 ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

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

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 7 ms 2200 KB Output is correct
21 Correct 9 ms 2260 KB Output is correct
22 Correct 84 ms 19852 KB Output is correct
23 Correct 86 ms 19828 KB Output is correct
24 Correct 85 ms 19792 KB Output is correct
25 Correct 76 ms 19848 KB Output is correct
26 Correct 84 ms 19852 KB Output is correct
27 Correct 76 ms 19884 KB Output is correct
28 Correct 87 ms 19872 KB Output is correct
29 Correct 81 ms 19896 KB Output is correct
30 Correct 82 ms 19860 KB Output is correct
31 Correct 84 ms 19796 KB Output is correct
32 Correct 80 ms 19880 KB Output is correct
33 Correct 77 ms 19816 KB Output is correct
34 Correct 83 ms 19888 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 82 ms 19892 KB Output is correct
38 Correct 80 ms 19788 KB Output is correct
39 Correct 83 ms 19776 KB Output is correct

Subtask #4
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 214 ms 33132 KB Output is correct
6 Correct 115 ms 21268 KB Output is correct
7 Correct 226 ms 33180 KB Output is correct
8 Correct 92 ms 19824 KB Output is correct
9 Correct 250 ms 33156 KB Output is correct
10 Correct 161 ms 26152 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 352 KB Output is correct
39 Correct 1 ms 316 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 596 KB Output is correct
42 Correct 2 ms 596 KB Output is correct
43 Correct 2 ms 596 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 1 ms 596 KB Output is correct
46 Correct 2 ms 596 KB Output is correct
47 Correct 1 ms 468 KB Output is correct
48 Correct 2 ms 468 KB Output is correct
49 Correct 1 ms 468 KB Output is correct
50 Correct 1 ms 468 KB Output is correct
51 Correct 1 ms 468 KB Output is correct
52 Correct 2 ms 596 KB Output is correct

Subtask #6
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 0 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 0 ms 340 KB Output is correct
26 Correct 0 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 0 ms 340 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 0 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 0 ms 340 KB Output is correct
40 Correct 0 ms 340 KB Output is correct
41 Correct 0 ms 340 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 1 ms 340 KB Output is correct
44 Correct 0 ms 340 KB Output is correct
45 Correct 0 ms 340 KB Output is correct
46 Correct 0 ms 340 KB Output is correct
47 Correct 0 ms 340 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 1 ms 340 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 1 ms 340 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 1 ms 468 KB Output is correct
54 Correct 7 ms 2200 KB Output is correct
55 Correct 9 ms 2260 KB Output is correct
56 Correct 84 ms 19852 KB Output is correct
57 Correct 86 ms 19828 KB Output is correct
58 Correct 85 ms 19792 KB Output is correct
59 Correct 76 ms 19848 KB Output is correct
60 Correct 84 ms 19852 KB Output is correct
61 Correct 76 ms 19884 KB Output is correct
62 Correct 87 ms 19872 KB Output is correct
63 Correct 81 ms 19896 KB Output is correct
64 Correct 82 ms 19860 KB Output is correct
65 Correct 84 ms 19796 KB Output is correct
66 Correct 80 ms 19880 KB Output is correct
67 Correct 77 ms 19816 KB Output is correct
68 Correct 83 ms 19888 KB Output is correct
69 Correct 0 ms 340 KB Output is correct
70 Correct 1 ms 340 KB Output is correct
71 Correct 82 ms 19892 KB Output is correct
72 Correct 80 ms 19788 KB Output is correct
73 Correct 83 ms 19776 KB Output is correct
74 Correct 0 ms 340 KB Output is correct
75 Correct 0 ms 340 KB Output is correct
76 Correct 0 ms 340 KB Output is correct
77 Correct 0 ms 340 KB Output is correct
78 Correct 214 ms 33132 KB Output is correct
79 Correct 115 ms 21268 KB Output is correct
80 Correct 226 ms 33180 KB Output is correct
81 Correct 92 ms 19824 KB Output is correct
82 Correct 250 ms 33156 KB Output is correct
83 Correct 161 ms 26152 KB Output is correct
84 Correct 0 ms 212 KB Output is correct
85 Correct 0 ms 352 KB Output is correct
86 Correct 1 ms 316 KB Output is correct
87 Correct 1 ms 340 KB Output is correct
88 Correct 1 ms 596 KB Output is correct
89 Correct 2 ms 596 KB Output is correct
90 Correct 2 ms 596 KB Output is correct
91 Correct 2 ms 596 KB Output is correct
92 Correct 1 ms 596 KB Output is correct
93 Correct 2 ms 596 KB Output is correct
94 Correct 1 ms 468 KB Output is correct
95 Correct 2 ms 468 KB Output is correct
96 Correct 1 ms 468 KB Output is correct
97 Correct 1 ms 468 KB Output is correct
98 Correct 1 ms 468 KB Output is correct
99 Correct 2 ms 596 KB Output is correct
100 Correct 2 ms 596 KB Output is correct
101 Correct 14 ms 3548 KB Output is correct
102 Correct 11 ms 2492 KB Output is correct
103 Correct 264 ms 33064 KB Output is correct
104 Correct 219 ms 33088 KB Output is correct
105 Correct 224 ms 27092 KB Output is correct
106 Correct 216 ms 33156 KB Output is correct
107 Correct 122 ms 21500 KB Output is correct
108 Correct 134 ms 22720 KB Output is correct
109 Correct 87 ms 19900 KB Output is correct
110 Correct 82 ms 19772 KB Output is correct
111 Correct 207 ms 31596 KB Output is correct
112 Correct 240 ms 30008 KB Output is correct
113 Correct 119 ms 21632 KB Output is correct
114 Correct 212 ms 33104 KB Output is correct
115 Correct 230 ms 33128 KB Output is correct