oj.uz

Submission #980127

# Submission time Handle Problem Language Result Execution time Memory
980127 2024-05-12T00:01:39 Z ShaShi Arranging Shoes (IOI19_shoes) C++17
50 / 100
 128 ms 137808 KB 
#include "shoes.h"
#include <bits/stdc++.h>
#define F first
#define S seond
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define pii pair<int, int>


using namespace std;
typedef long long ll;

const int MAXN = (int)1e5 + 7;
const int MOD = 998244353;
const int INF = (int)1e9 + 7;



int n, m, t, tmp, tmp2, tmp3, u, v, w, ans;
deque<int> vec[2][MAXN];

/* BIT */
int fen[MAXN];

inline void upd(int x, int y) {
	for (x++; x<MAXN; x+=x&-x) fen[x] += y;
}


inline int get(int x) {
	int res = 0;
	for (x++; x>0; x-=x&-x) res += fen[x];
	return res;
}

/* BIT */

ll count_swaps(vector<int> s) {
	n = s.size()/2;
	ll ans = 0;

	for (int i=0; i<2*n; i++) {
		upd(i, 1);

		if (s[i] < 0) vec[0][0-s[i]].pb(i);
		else vec[1][s[i]].pb(i);
	}

	for (int j=0; j<2*n; j++) {
		if (get(j)-get(j-1) == 0) continue;

		if (s[j] < 0) {
			tmp2 = vec[1][0-s[j]].front(); vec[1][0-s[j]].pop_front(); vec[0][0-s[j]].pop_front();

			// cout << "@" << s[j] << " " << s[tmp2] << endl;
			// cout << "!" << get(tmp2-1) << " " << get(j) << endl;

			ans += get(tmp2-1)-get(j);
			upd(tmp2, -1);
		} else {
			tmp2 = vec[0][s[j]].front(); vec[1][s[j]].pop_front(); vec[0][s[j]].pop_front();

			// cout << "@" << s[j] << " " << s[tmp2] << endl;
			// cout << "!" << get(tmp2) << " " << get(j) << endl;

			ans += get(tmp2)-get(j);
			upd(tmp2, -1);
		}

		upd(j, -1);
	}

	return ans;
}

// int main() {
// 	int n;
// 	assert(1 == scanf("%d", &n));
// 	vector<int> S(2 * n);
// 	for (int i = 0; i < 2 * n; i++)
// 		assert(1 == scanf("%d", &S[i]));
// 	fclose(stdin);

// 	long long result = count_swaps(S);

// 	printf("%lld\n", result);
// 	fclose(stdout);
// 	return 0;
// }

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135248 KB Output is correct
2 Correct 62 ms 135284 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135248 KB Output is correct
2 Correct 62 ms 135284 KB Output is correct
3 Correct 62 ms 135272 KB Output is correct
4 Correct 64 ms 135256 KB Output is correct
5 Correct 62 ms 135144 KB Output is correct
6 Correct 61 ms 135252 KB Output is correct
7 Correct 61 ms 135248 KB Output is correct
8 Correct 62 ms 135080 KB Output is correct
9 Correct 62 ms 135092 KB Output is correct
10 Correct 61 ms 135112 KB Output is correct
11 Correct 62 ms 135248 KB Output is correct
12 Correct 62 ms 135268 KB Output is correct
13 Correct 62 ms 135176 KB Output is correct
14 Correct 62 ms 135252 KB Output is correct
15 Correct 62 ms 135080 KB Output is correct
16 Correct 62 ms 135104 KB Output is correct
17 Correct 61 ms 135252 KB Output is correct
18 Correct 60 ms 135248 KB Output is correct
19 Correct 75 ms 135252 KB Output is correct
20 Correct 63 ms 135084 KB Output is correct
21 Correct 66 ms 135252 KB Output is correct
22 Correct 60 ms 135248 KB Output is correct
23 Correct 63 ms 135136 KB Output is correct
24 Correct 77 ms 135156 KB Output is correct
25 Correct 70 ms 135252 KB Output is correct
26 Correct 60 ms 135248 KB Output is correct
27 Correct 61 ms 135256 KB Output is correct
28 Correct 61 ms 135248 KB Output is correct
29 Correct 62 ms 135264 KB Output is correct
30 Correct 64 ms 135248 KB Output is correct
31 Correct 65 ms 135252 KB Output is correct
32 Correct 61 ms 135256 KB Output is correct
33 Correct 61 ms 135260 KB Output is correct
34 Correct 60 ms 135248 KB Output is correct
35 Correct 61 ms 135248 KB Output is correct
36 Correct 60 ms 135276 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135248 KB Output is correct
2 Correct 62 ms 135284 KB Output is correct
3 Correct 61 ms 135252 KB Output is correct
4 Correct 61 ms 135252 KB Output is correct
5 Correct 63 ms 135248 KB Output is correct
6 Correct 61 ms 135252 KB Output is correct
7 Correct 61 ms 135248 KB Output is correct
8 Correct 60 ms 135252 KB Output is correct
9 Correct 74 ms 135252 KB Output is correct
10 Correct 62 ms 135108 KB Output is correct
11 Correct 61 ms 135248 KB Output is correct
12 Correct 62 ms 135068 KB Output is correct
13 Correct 65 ms 135248 KB Output is correct
14 Correct 60 ms 135244 KB Output is correct
15 Correct 61 ms 135248 KB Output is correct
16 Correct 62 ms 135252 KB Output is correct
17 Correct 71 ms 135252 KB Output is correct
18 Correct 68 ms 135248 KB Output is correct
19 Correct 67 ms 135508 KB Output is correct
20 Correct 72 ms 135516 KB Output is correct
21 Correct 72 ms 135504 KB Output is correct
22 Incorrect 114 ms 137808 KB Output isn't correct
23 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135236 KB Output is correct
2 Correct 61 ms 135244 KB Output is correct
3 Correct 74 ms 135188 KB Output is correct
4 Correct 62 ms 135252 KB Output is correct
5 Incorrect 128 ms 136868 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135248 KB Output is correct
2 Correct 62 ms 135284 KB Output is correct
3 Correct 62 ms 135272 KB Output is correct
4 Correct 64 ms 135256 KB Output is correct
5 Correct 62 ms 135144 KB Output is correct
6 Correct 61 ms 135252 KB Output is correct
7 Correct 61 ms 135248 KB Output is correct
8 Correct 62 ms 135080 KB Output is correct
9 Correct 62 ms 135092 KB Output is correct
10 Correct 61 ms 135112 KB Output is correct
11 Correct 62 ms 135248 KB Output is correct
12 Correct 62 ms 135268 KB Output is correct
13 Correct 62 ms 135176 KB Output is correct
14 Correct 62 ms 135252 KB Output is correct
15 Correct 62 ms 135080 KB Output is correct
16 Correct 62 ms 135104 KB Output is correct
17 Correct 61 ms 135252 KB Output is correct
18 Correct 60 ms 135248 KB Output is correct
19 Correct 75 ms 135252 KB Output is correct
20 Correct 63 ms 135084 KB Output is correct
21 Correct 66 ms 135252 KB Output is correct
22 Correct 60 ms 135248 KB Output is correct
23 Correct 63 ms 135136 KB Output is correct
24 Correct 77 ms 135156 KB Output is correct
25 Correct 70 ms 135252 KB Output is correct
26 Correct 60 ms 135248 KB Output is correct
27 Correct 61 ms 135256 KB Output is correct
28 Correct 61 ms 135248 KB Output is correct
29 Correct 62 ms 135264 KB Output is correct
30 Correct 64 ms 135248 KB Output is correct
31 Correct 65 ms 135252 KB Output is correct
32 Correct 61 ms 135256 KB Output is correct
33 Correct 61 ms 135260 KB Output is correct
34 Correct 60 ms 135248 KB Output is correct
35 Correct 61 ms 135248 KB Output is correct
36 Correct 60 ms 135276 KB Output is correct
37 Correct 68 ms 135280 KB Output is correct
38 Correct 64 ms 135252 KB Output is correct
39 Correct 61 ms 135248 KB Output is correct
40 Correct 61 ms 135256 KB Output is correct
41 Correct 61 ms 135192 KB Output is correct
42 Correct 63 ms 135252 KB Output is correct
43 Correct 62 ms 135248 KB Output is correct
44 Correct 62 ms 135252 KB Output is correct
45 Correct 64 ms 135312 KB Output is correct
46 Correct 61 ms 135252 KB Output is correct
47 Correct 63 ms 135236 KB Output is correct
48 Correct 62 ms 135256 KB Output is correct
49 Correct 61 ms 135248 KB Output is correct
50 Correct 66 ms 135252 KB Output is correct
51 Correct 71 ms 135248 KB Output is correct
52 Correct 61 ms 135220 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 135248 KB Output is correct
2 Correct 62 ms 135284 KB Output is correct
3 Correct 62 ms 135272 KB Output is correct
4 Correct 64 ms 135256 KB Output is correct
5 Correct 62 ms 135144 KB Output is correct
6 Correct 61 ms 135252 KB Output is correct
7 Correct 61 ms 135248 KB Output is correct
8 Correct 62 ms 135080 KB Output is correct
9 Correct 62 ms 135092 KB Output is correct
10 Correct 61 ms 135112 KB Output is correct
11 Correct 62 ms 135248 KB Output is correct
12 Correct 62 ms 135268 KB Output is correct
13 Correct 62 ms 135176 KB Output is correct
14 Correct 62 ms 135252 KB Output is correct
15 Correct 62 ms 135080 KB Output is correct
16 Correct 62 ms 135104 KB Output is correct
17 Correct 61 ms 135252 KB Output is correct
18 Correct 60 ms 135248 KB Output is correct
19 Correct 75 ms 135252 KB Output is correct
20 Correct 63 ms 135084 KB Output is correct
21 Correct 66 ms 135252 KB Output is correct
22 Correct 60 ms 135248 KB Output is correct
23 Correct 63 ms 135136 KB Output is correct
24 Correct 77 ms 135156 KB Output is correct
25 Correct 70 ms 135252 KB Output is correct
26 Correct 60 ms 135248 KB Output is correct
27 Correct 61 ms 135256 KB Output is correct
28 Correct 61 ms 135248 KB Output is correct
29 Correct 62 ms 135264 KB Output is correct
30 Correct 64 ms 135248 KB Output is correct
31 Correct 65 ms 135252 KB Output is correct
32 Correct 61 ms 135256 KB Output is correct
33 Correct 61 ms 135260 KB Output is correct
34 Correct 60 ms 135248 KB Output is correct
35 Correct 61 ms 135248 KB Output is correct
36 Correct 60 ms 135276 KB Output is correct
37 Correct 61 ms 135252 KB Output is correct
38 Correct 61 ms 135252 KB Output is correct
39 Correct 63 ms 135248 KB Output is correct
40 Correct 61 ms 135252 KB Output is correct
41 Correct 61 ms 135248 KB Output is correct
42 Correct 60 ms 135252 KB Output is correct
43 Correct 74 ms 135252 KB Output is correct
44 Correct 62 ms 135108 KB Output is correct
45 Correct 61 ms 135248 KB Output is correct
46 Correct 62 ms 135068 KB Output is correct
47 Correct 65 ms 135248 KB Output is correct
48 Correct 60 ms 135244 KB Output is correct
49 Correct 61 ms 135248 KB Output is correct
50 Correct 62 ms 135252 KB Output is correct
51 Correct 71 ms 135252 KB Output is correct
52 Correct 68 ms 135248 KB Output is correct
53 Correct 67 ms 135508 KB Output is correct
54 Correct 72 ms 135516 KB Output is correct
55 Correct 72 ms 135504 KB Output is correct
56 Incorrect 114 ms 137808 KB Output isn't correct
57 Halted 0 ms 0 KB -