oj.uz

Submission #947734

# Submission time Handle Problem Language Result Execution time Memory
947734 2024-03-17T00:57:41 Z biank Arranging Shoes (IOI19_shoes) C++14
100 / 100
 395 ms 149204 KB 
#include <bits/stdc++.h>

using namespace std;

#define sz(x) int(x.size())

typedef long long ll;

const int MAX_N = 2e5 + 20;

int ft[MAX_N];

inline int lsb(int i) {
    return i & (-i);
}

void update(int i) {
    i++;
    while (i < MAX_N) {
        ft[i]++;
        i += lsb(i);
    }
}

int query(int i) {
    int s = 0;
    while (i > 0) {
        s += ft[i];
        i -= lsb(i);
    }
    return s;
}

ll count_swaps(vector<int> S) {
	int n = sz(S);
	
	vector<pair<int, int>> pairs;
	map<int, queue<int>> m;
	
	for (int i = 0; i < n; i++) {
		if (!m[S[i]].empty()) {
			pairs.emplace_back(m[S[i]].front(), i);
			m[S[i]].pop();
		} else {
			m[-S[i]].push(i);
		}
	}
	
	ll ans = 0;
	for (auto [x, y] : pairs) {
		if (S[y] < S[x]) {
			swap(x, y);
		}
        for (int p : {x, y}) {
            ans += p - query(p);
            update(p);
        }
	}
	return ans;
}

Compilation message

shoes.cpp: In function 'll count_swaps(std::vector<int>)':
shoes.cpp:50:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   50 |  for (auto [x, y] : pairs) {
      |            ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 596 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 3 ms 856 KB Output is correct
21 Correct 3 ms 860 KB Output is correct
22 Correct 27 ms 4804 KB Output is correct
23 Correct 20 ms 4812 KB Output is correct
24 Correct 24 ms 4784 KB Output is correct
25 Correct 20 ms 5040 KB Output is correct
26 Correct 23 ms 5060 KB Output is correct
27 Correct 19 ms 4560 KB Output is correct
28 Correct 20 ms 5328 KB Output is correct
29 Correct 24 ms 5276 KB Output is correct
30 Correct 21 ms 5192 KB Output is correct
31 Correct 22 ms 4924 KB Output is correct
32 Correct 21 ms 5328 KB Output is correct
33 Correct 23 ms 5172 KB Output is correct
34 Correct 22 ms 5312 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 21 ms 5312 KB Output is correct
38 Correct 20 ms 5328 KB Output is correct
39 Correct 21 ms 5316 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 628 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 395 ms 148856 KB Output is correct
6 Correct 87 ms 17348 KB Output is correct
7 Correct 367 ms 148916 KB Output is correct
8 Correct 26 ms 5320 KB Output is correct
9 Correct 370 ms 148972 KB Output is correct
10 Correct 247 ms 76840 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 604 KB Output is correct
41 Correct 2 ms 1884 KB Output is correct
42 Correct 2 ms 1884 KB Output is correct
43 Correct 2 ms 1732 KB Output is correct
44 Correct 2 ms 1372 KB Output is correct
45 Correct 1 ms 1368 KB Output is correct
46 Correct 1 ms 1116 KB Output is correct
47 Correct 1 ms 1116 KB Output is correct
48 Correct 1 ms 860 KB Output is correct
49 Correct 1 ms 604 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 2 ms 1916 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 596 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 3 ms 856 KB Output is correct
55 Correct 3 ms 860 KB Output is correct
56 Correct 27 ms 4804 KB Output is correct
57 Correct 20 ms 4812 KB Output is correct
58 Correct 24 ms 4784 KB Output is correct
59 Correct 20 ms 5040 KB Output is correct
60 Correct 23 ms 5060 KB Output is correct
61 Correct 19 ms 4560 KB Output is correct
62 Correct 20 ms 5328 KB Output is correct
63 Correct 24 ms 5276 KB Output is correct
64 Correct 21 ms 5192 KB Output is correct
65 Correct 22 ms 4924 KB Output is correct
66 Correct 21 ms 5328 KB Output is correct
67 Correct 23 ms 5172 KB Output is correct
68 Correct 22 ms 5312 KB Output is correct
69 Correct 0 ms 344 KB Output is correct
70 Correct 1 ms 348 KB Output is correct
71 Correct 21 ms 5312 KB Output is correct
72 Correct 20 ms 5328 KB Output is correct
73 Correct 21 ms 5316 KB Output is correct
74 Correct 1 ms 628 KB Output is correct
75 Correct 1 ms 348 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 395 ms 148856 KB Output is correct
79 Correct 87 ms 17348 KB Output is correct
80 Correct 367 ms 148916 KB Output is correct
81 Correct 26 ms 5320 KB Output is correct
82 Correct 370 ms 148972 KB Output is correct
83 Correct 247 ms 76840 KB Output is correct
84 Correct 1 ms 344 KB Output is correct
85 Correct 1 ms 348 KB Output is correct
86 Correct 1 ms 604 KB Output is correct
87 Correct 1 ms 604 KB Output is correct
88 Correct 2 ms 1884 KB Output is correct
89 Correct 2 ms 1884 KB Output is correct
90 Correct 2 ms 1732 KB Output is correct
91 Correct 2 ms 1372 KB Output is correct
92 Correct 1 ms 1368 KB Output is correct
93 Correct 1 ms 1116 KB Output is correct
94 Correct 1 ms 1116 KB Output is correct
95 Correct 1 ms 860 KB Output is correct
96 Correct 1 ms 604 KB Output is correct
97 Correct 1 ms 344 KB Output is correct
98 Correct 1 ms 348 KB Output is correct
99 Correct 2 ms 1916 KB Output is correct
100 Correct 3 ms 1884 KB Output is correct
101 Correct 18 ms 13676 KB Output is correct
102 Correct 8 ms 3676 KB Output is correct
103 Correct 386 ms 148672 KB Output is correct
104 Correct 347 ms 148672 KB Output is correct
105 Correct 242 ms 86472 KB Output is correct
106 Correct 374 ms 148804 KB Output is correct
107 Correct 91 ms 20664 KB Output is correct
108 Correct 124 ms 36568 KB Output is correct
109 Correct 21 ms 5172 KB Output is correct
110 Correct 21 ms 5192 KB Output is correct
111 Correct 344 ms 132808 KB Output is correct
112 Correct 391 ms 116612 KB Output is correct
113 Correct 98 ms 22508 KB Output is correct
114 Correct 364 ms 148892 KB Output is correct
115 Correct 386 ms 149204 KB Output is correct