oj.uz

Submission #225735

# Submission time Handle Problem Language Result Execution time Memory
225735 2020-04-21T12:46:24 Z grt Arranging Shoes (IOI19_shoes) C++17
100 / 100
 133 ms 16504 KB 
#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second
#define _ ios_base::sync_with_stdio(0); cin.tie(0);
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

using namespace std;

using ll = long long;
using pi = pair<int,int>;
using vi = vector<int>;

const int nax = 100*1000+10;
int T[(1<<19)],R;
vi lft[nax],rght[nax];
int nxt[2*nax];

void update(int a,int x) {
	a+=R;
	T[a] += x;
	while(a>1) {
		a/=2;
		T[a] = T[2*a] + T[2*a+1];
	}
}

int query(int a,int b) {
	a+=R; b+=R;
	if(a > b) return 0;
	int w = T[a] + (a!=b?T[b]:0);
	while(a/2!=b/2) {
		if(a%2==0) w+=T[a+1];
		if(b%2==1) w+=T[b-1];
		a/=2; b/=2;
	}
	return w;
}

ll count_swaps(vector<int> t) {
	int n = t.size();
	R = 1;
	ll ans = 0;
	while(R < n) R*=2;
	for(int i = 0; i < n; ++i) {
		if(t[i] < 0) {
			lft[-t[i]].PB(i);
		} else {
			rght[t[i]].PB(i);
		}
	}
	for(int i = 1; i <= n/2; ++i) {
		for(int j = 0; j < (int)lft[i].size(); ++j) {
			ans += (lft[i][j] > rght[i][j]);
			nxt[min(lft[i][j],rght[i][j])] = max(lft[i][j],rght[i][j]);
		}
	} 
	for(int i = 0; i < n; ++i) {
		if(nxt[i] == 0) continue;
		ans += nxt[i] - i - 1 - query(i+1,nxt[i]-1);
		update(nxt[i],1);
	}
	return ans;
}

//~ int main() {
	//~ cout << count_swaps({2,1,-1,-2});
//~ }

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 8 ms 4992 KB Output is correct
9 Correct 8 ms 4992 KB Output is correct
10 Correct 8 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 8 ms 4992 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 11 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 7 ms 4992 KB Output is correct
25 Correct 8 ms 4992 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 8 ms 4992 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 9 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 9 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 4992 KB Output is correct
35 Correct 7 ms 4992 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 8 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 8 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 7 ms 4992 KB Output is correct
14 Correct 8 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 8 ms 4992 KB Output is correct
18 Correct 8 ms 5120 KB Output is correct
19 Correct 8 ms 5120 KB Output is correct
20 Correct 13 ms 5760 KB Output is correct
21 Correct 13 ms 5632 KB Output is correct
22 Correct 70 ms 11160 KB Output is correct
23 Correct 55 ms 11244 KB Output is correct
24 Correct 61 ms 11244 KB Output is correct
25 Correct 60 ms 9840 KB Output is correct
26 Correct 65 ms 11244 KB Output is correct
27 Correct 53 ms 10988 KB Output is correct
28 Correct 59 ms 9968 KB Output is correct
29 Correct 62 ms 9968 KB Output is correct
30 Correct 62 ms 9968 KB Output is correct
31 Correct 66 ms 11268 KB Output is correct
32 Correct 61 ms 9968 KB Output is correct
33 Correct 55 ms 9840 KB Output is correct
34 Correct 61 ms 9968 KB Output is correct
35 Correct 7 ms 4992 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 59 ms 9968 KB Output is correct
38 Correct 62 ms 9968 KB Output is correct
39 Correct 65 ms 9968 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 5120 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 133 ms 15352 KB Output is correct
6 Correct 75 ms 10488 KB Output is correct
7 Correct 89 ms 15352 KB Output is correct
8 Correct 61 ms 9988 KB Output is correct
9 Correct 133 ms 15352 KB Output is correct
10 Correct 85 ms 12280 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 8 ms 4992 KB Output is correct
9 Correct 8 ms 4992 KB Output is correct
10 Correct 8 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 8 ms 4992 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 11 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 7 ms 4992 KB Output is correct
25 Correct 8 ms 4992 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 8 ms 4992 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 9 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 9 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 4992 KB Output is correct
35 Correct 7 ms 4992 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 8 ms 4992 KB Output is correct
38 Correct 7 ms 4992 KB Output is correct
39 Correct 7 ms 4992 KB Output is correct
40 Correct 7 ms 4992 KB Output is correct
41 Correct 8 ms 5120 KB Output is correct
42 Correct 10 ms 5120 KB Output is correct
43 Correct 10 ms 5120 KB Output is correct
44 Correct 7 ms 5120 KB Output is correct
45 Correct 8 ms 5120 KB Output is correct
46 Correct 8 ms 5120 KB Output is correct
47 Correct 8 ms 5120 KB Output is correct
48 Correct 9 ms 5120 KB Output is correct
49 Correct 8 ms 5120 KB Output is correct
50 Correct 8 ms 5120 KB Output is correct
51 Correct 8 ms 5120 KB Output is correct
52 Correct 8 ms 5120 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 7 ms 4992 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 8 ms 4992 KB Output is correct
9 Correct 8 ms 4992 KB Output is correct
10 Correct 8 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 7 ms 4992 KB Output is correct
13 Correct 8 ms 4992 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 11 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 7 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 7 ms 4992 KB Output is correct
25 Correct 8 ms 4992 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 8 ms 4992 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 9 ms 4992 KB Output is correct
30 Correct 7 ms 4992 KB Output is correct
31 Correct 8 ms 4992 KB Output is correct
32 Correct 9 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 7 ms 4992 KB Output is correct
35 Correct 7 ms 4992 KB Output is correct
36 Correct 7 ms 4992 KB Output is correct
37 Correct 7 ms 4992 KB Output is correct
38 Correct 7 ms 4992 KB Output is correct
39 Correct 8 ms 4992 KB Output is correct
40 Correct 7 ms 4992 KB Output is correct
41 Correct 8 ms 4992 KB Output is correct
42 Correct 7 ms 4992 KB Output is correct
43 Correct 7 ms 4992 KB Output is correct
44 Correct 7 ms 4992 KB Output is correct
45 Correct 7 ms 4992 KB Output is correct
46 Correct 7 ms 4992 KB Output is correct
47 Correct 7 ms 4992 KB Output is correct
48 Correct 8 ms 4992 KB Output is correct
49 Correct 7 ms 4992 KB Output is correct
50 Correct 7 ms 4992 KB Output is correct
51 Correct 8 ms 4992 KB Output is correct
52 Correct 8 ms 5120 KB Output is correct
53 Correct 8 ms 5120 KB Output is correct
54 Correct 13 ms 5760 KB Output is correct
55 Correct 13 ms 5632 KB Output is correct
56 Correct 70 ms 11160 KB Output is correct
57 Correct 55 ms 11244 KB Output is correct
58 Correct 61 ms 11244 KB Output is correct
59 Correct 60 ms 9840 KB Output is correct
60 Correct 65 ms 11244 KB Output is correct
61 Correct 53 ms 10988 KB Output is correct
62 Correct 59 ms 9968 KB Output is correct
63 Correct 62 ms 9968 KB Output is correct
64 Correct 62 ms 9968 KB Output is correct
65 Correct 66 ms 11268 KB Output is correct
66 Correct 61 ms 9968 KB Output is correct
67 Correct 55 ms 9840 KB Output is correct
68 Correct 61 ms 9968 KB Output is correct
69 Correct 7 ms 4992 KB Output is correct
70 Correct 7 ms 4992 KB Output is correct
71 Correct 59 ms 9968 KB Output is correct
72 Correct 62 ms 9968 KB Output is correct
73 Correct 65 ms 9968 KB Output is correct
74 Correct 7 ms 4992 KB Output is correct
75 Correct 7 ms 4992 KB Output is correct
76 Correct 7 ms 5120 KB Output is correct
77 Correct 7 ms 4992 KB Output is correct
78 Correct 133 ms 15352 KB Output is correct
79 Correct 75 ms 10488 KB Output is correct
80 Correct 89 ms 15352 KB Output is correct
81 Correct 61 ms 9988 KB Output is correct
82 Correct 133 ms 15352 KB Output is correct
83 Correct 85 ms 12280 KB Output is correct
84 Correct 8 ms 4992 KB Output is correct
85 Correct 7 ms 4992 KB Output is correct
86 Correct 7 ms 4992 KB Output is correct
87 Correct 7 ms 4992 KB Output is correct
88 Correct 8 ms 5120 KB Output is correct
89 Correct 10 ms 5120 KB Output is correct
90 Correct 10 ms 5120 KB Output is correct
91 Correct 7 ms 5120 KB Output is correct
92 Correct 8 ms 5120 KB Output is correct
93 Correct 8 ms 5120 KB Output is correct
94 Correct 8 ms 5120 KB Output is correct
95 Correct 9 ms 5120 KB Output is correct
96 Correct 8 ms 5120 KB Output is correct
97 Correct 8 ms 5120 KB Output is correct
98 Correct 8 ms 5120 KB Output is correct
99 Correct 8 ms 5120 KB Output is correct
100 Correct 8 ms 5120 KB Output is correct
101 Correct 15 ms 6144 KB Output is correct
102 Correct 14 ms 5760 KB Output is correct
103 Correct 119 ms 16504 KB Output is correct
104 Correct 97 ms 16504 KB Output is correct
105 Correct 107 ms 13816 KB Output is correct
106 Correct 95 ms 15356 KB Output is correct
107 Correct 75 ms 11768 KB Output is correct
108 Correct 77 ms 12152 KB Output is correct
109 Correct 64 ms 10352 KB Output is correct
110 Correct 64 ms 9968 KB Output is correct
111 Correct 91 ms 14584 KB Output is correct
112 Correct 105 ms 15096 KB Output is correct
113 Correct 89 ms 10616 KB Output is correct
114 Correct 120 ms 15352 KB Output is correct
115 Correct 91 ms 15356 KB Output is correct