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Submission #398647

# Submission time Handle Problem Language Result Execution time Memory
398647 2021-05-04T16:27:05 Z richyrich Arranging Shoes (IOI19_shoes) C++17
100 / 100
 183 ms 37260 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll MOD = 1e9+7;
const ll N = 2e5+10;
const ll inf = 1e9+100;
const double eps = 1;
ll n, a[N], t[N*4];
set<ll> L[N], R[N];
ll ans;
bool used[N];
void update(ll tv, ll tl, ll tr, ll l, ll r) {
	if(l > r) return;
	if(tl == l && tr == r) {
		t[tv]++;
		return;
	}
	else {
		ll tm =(tl + tr) >> 1;
		update(tv * 2, tl, tm, l, min(tm, r));
		update(tv * 2 + 1, tm + 1, tr, max(tm + 1, l), r);
	}
} 
ll get(ll tv, ll tl, ll tr, ll pos) {
	ll tm = (tl+tr)>>1;
	if(tl == tr) return t[tv];
	else {
		if(pos <= tm) return t[tv] + get(tv * 2, tl, tm, pos);
		else return t[tv] + get(tv * 2 +1, tm + 1, tr, pos);
	}
}
long long count_swaps(std::vector<int> s) {
	ans = 0;
    n = s.size();
    for(ll i = 1;i <= n;i++) {
    	a[i] = s[i-1];
    	if(a[i] < 0) L[-a[i]].insert(i);
    	else R[a[i]].insert(i);
    }
    for(ll i = 1; i <= n; i++){
    	if(used[i]) continue;
    	ll pos;
    	if(a[i] < 0) {
    		pos = *R[-a[i]].begin();
    		L[-a[i]].erase(i);
    		R[-a[i]].erase(pos);
    		ans += pos-(i) + get(1, 1, n, pos) - get(1, 1, n, i) - 1;
    		used[pos] = used[i] = 1;
            if(i+1 <= pos - 1)update(1, 1, n, i+1, pos - 1);
    	}
    	else {
    		pos = *L[a[i]].begin();
    		R[a[i]].erase(i);
    		L[a[i]].erase(pos);
    		ans += pos - i + get(1, 1, n, pos) - get(1, 1, n, i);
    		used[pos] = used[i] = 1;
            if(i <= pos - 1)update(1, 1, n, i, pos - 1);
    	}
    }
    return ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct
3 Correct 10 ms 19092 KB Output is correct
4 Correct 11 ms 19100 KB Output is correct
5 Correct 12 ms 19020 KB Output is correct
6 Correct 10 ms 19020 KB Output is correct
7 Correct 11 ms 19020 KB Output is correct
8 Correct 11 ms 19020 KB Output is correct
9 Correct 11 ms 19000 KB Output is correct
10 Correct 11 ms 19020 KB Output is correct
11 Correct 11 ms 19076 KB Output is correct
12 Correct 10 ms 19088 KB Output is correct
13 Correct 10 ms 19020 KB Output is correct
14 Correct 11 ms 19096 KB Output is correct
15 Correct 10 ms 19020 KB Output is correct
16 Correct 11 ms 19012 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 11 ms 19028 KB Output is correct
19 Correct 11 ms 19092 KB Output is correct
20 Correct 11 ms 19068 KB Output is correct
21 Correct 11 ms 19024 KB Output is correct
22 Correct 11 ms 19020 KB Output is correct
23 Correct 11 ms 19108 KB Output is correct
24 Correct 11 ms 19020 KB Output is correct
25 Correct 11 ms 19036 KB Output is correct
26 Correct 11 ms 19020 KB Output is correct
27 Correct 11 ms 19096 KB Output is correct
28 Correct 11 ms 19096 KB Output is correct
29 Correct 11 ms 19020 KB Output is correct
30 Correct 10 ms 19024 KB Output is correct
31 Correct 10 ms 19020 KB Output is correct
32 Correct 11 ms 19020 KB Output is correct
33 Correct 11 ms 19008 KB Output is correct
34 Correct 12 ms 19020 KB Output is correct
35 Correct 10 ms 19020 KB Output is correct
36 Correct 11 ms 19040 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct
3 Correct 10 ms 19020 KB Output is correct
4 Correct 10 ms 19020 KB Output is correct
5 Correct 11 ms 19020 KB Output is correct
6 Correct 11 ms 19020 KB Output is correct
7 Correct 11 ms 18988 KB Output is correct
8 Correct 11 ms 19020 KB Output is correct
9 Correct 11 ms 19148 KB Output is correct
10 Correct 11 ms 19020 KB Output is correct
11 Correct 11 ms 18988 KB Output is correct
12 Correct 11 ms 19092 KB Output is correct
13 Correct 11 ms 19112 KB Output is correct
14 Correct 11 ms 19088 KB Output is correct
15 Correct 11 ms 19072 KB Output is correct
16 Correct 12 ms 19020 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 12 ms 19148 KB Output is correct
19 Correct 12 ms 19164 KB Output is correct
20 Correct 21 ms 20952 KB Output is correct
21 Correct 22 ms 20940 KB Output is correct
22 Correct 121 ms 36244 KB Output is correct
23 Correct 110 ms 32392 KB Output is correct
24 Correct 123 ms 36292 KB Output is correct
25 Correct 131 ms 36456 KB Output is correct
26 Correct 116 ms 36292 KB Output is correct
27 Correct 124 ms 35364 KB Output is correct
28 Correct 130 ms 36336 KB Output is correct
29 Correct 133 ms 36548 KB Output is correct
30 Correct 132 ms 36404 KB Output is correct
31 Correct 116 ms 36368 KB Output is correct
32 Correct 128 ms 36356 KB Output is correct
33 Correct 128 ms 36288 KB Output is correct
34 Correct 131 ms 36420 KB Output is correct
35 Correct 14 ms 19096 KB Output is correct
36 Correct 12 ms 19096 KB Output is correct
37 Correct 135 ms 36292 KB Output is correct
38 Correct 127 ms 36292 KB Output is correct
39 Correct 142 ms 36300 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct
3 Correct 16 ms 19096 KB Output is correct
4 Correct 12 ms 19000 KB Output is correct
5 Correct 111 ms 36292 KB Output is correct
6 Correct 146 ms 36292 KB Output is correct
7 Correct 110 ms 36372 KB Output is correct
8 Correct 121 ms 36300 KB Output is correct
9 Correct 109 ms 36292 KB Output is correct
10 Correct 126 ms 36352 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct
3 Correct 10 ms 19092 KB Output is correct
4 Correct 11 ms 19100 KB Output is correct
5 Correct 12 ms 19020 KB Output is correct
6 Correct 10 ms 19020 KB Output is correct
7 Correct 11 ms 19020 KB Output is correct
8 Correct 11 ms 19020 KB Output is correct
9 Correct 11 ms 19000 KB Output is correct
10 Correct 11 ms 19020 KB Output is correct
11 Correct 11 ms 19076 KB Output is correct
12 Correct 10 ms 19088 KB Output is correct
13 Correct 10 ms 19020 KB Output is correct
14 Correct 11 ms 19096 KB Output is correct
15 Correct 10 ms 19020 KB Output is correct
16 Correct 11 ms 19012 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 11 ms 19028 KB Output is correct
19 Correct 11 ms 19092 KB Output is correct
20 Correct 11 ms 19068 KB Output is correct
21 Correct 11 ms 19024 KB Output is correct
22 Correct 11 ms 19020 KB Output is correct
23 Correct 11 ms 19108 KB Output is correct
24 Correct 11 ms 19020 KB Output is correct
25 Correct 11 ms 19036 KB Output is correct
26 Correct 11 ms 19020 KB Output is correct
27 Correct 11 ms 19096 KB Output is correct
28 Correct 11 ms 19096 KB Output is correct
29 Correct 11 ms 19020 KB Output is correct
30 Correct 10 ms 19024 KB Output is correct
31 Correct 10 ms 19020 KB Output is correct
32 Correct 11 ms 19020 KB Output is correct
33 Correct 11 ms 19008 KB Output is correct
34 Correct 12 ms 19020 KB Output is correct
35 Correct 10 ms 19020 KB Output is correct
36 Correct 11 ms 19040 KB Output is correct
37 Correct 11 ms 19020 KB Output is correct
38 Correct 11 ms 19096 KB Output is correct
39 Correct 12 ms 19020 KB Output is correct
40 Correct 13 ms 19020 KB Output is correct
41 Correct 12 ms 19228 KB Output is correct
42 Correct 12 ms 19148 KB Output is correct
43 Correct 12 ms 19232 KB Output is correct
44 Correct 12 ms 19232 KB Output is correct
45 Correct 13 ms 19148 KB Output is correct
46 Correct 12 ms 19148 KB Output is correct
47 Correct 12 ms 19180 KB Output is correct
48 Correct 12 ms 19228 KB Output is correct
49 Correct 12 ms 19148 KB Output is correct
50 Correct 12 ms 19232 KB Output is correct
51 Correct 12 ms 19148 KB Output is correct
52 Correct 18 ms 19148 KB Output is correct

Subtask #6
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 19020 KB Output is correct
2 Correct 11 ms 19020 KB Output is correct
3 Correct 10 ms 19092 KB Output is correct
4 Correct 11 ms 19100 KB Output is correct
5 Correct 12 ms 19020 KB Output is correct
6 Correct 10 ms 19020 KB Output is correct
7 Correct 11 ms 19020 KB Output is correct
8 Correct 11 ms 19020 KB Output is correct
9 Correct 11 ms 19000 KB Output is correct
10 Correct 11 ms 19020 KB Output is correct
11 Correct 11 ms 19076 KB Output is correct
12 Correct 10 ms 19088 KB Output is correct
13 Correct 10 ms 19020 KB Output is correct
14 Correct 11 ms 19096 KB Output is correct
15 Correct 10 ms 19020 KB Output is correct
16 Correct 11 ms 19012 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 11 ms 19028 KB Output is correct
19 Correct 11 ms 19092 KB Output is correct
20 Correct 11 ms 19068 KB Output is correct
21 Correct 11 ms 19024 KB Output is correct
22 Correct 11 ms 19020 KB Output is correct
23 Correct 11 ms 19108 KB Output is correct
24 Correct 11 ms 19020 KB Output is correct
25 Correct 11 ms 19036 KB Output is correct
26 Correct 11 ms 19020 KB Output is correct
27 Correct 11 ms 19096 KB Output is correct
28 Correct 11 ms 19096 KB Output is correct
29 Correct 11 ms 19020 KB Output is correct
30 Correct 10 ms 19024 KB Output is correct
31 Correct 10 ms 19020 KB Output is correct
32 Correct 11 ms 19020 KB Output is correct
33 Correct 11 ms 19008 KB Output is correct
34 Correct 12 ms 19020 KB Output is correct
35 Correct 10 ms 19020 KB Output is correct
36 Correct 11 ms 19040 KB Output is correct
37 Correct 10 ms 19020 KB Output is correct
38 Correct 10 ms 19020 KB Output is correct
39 Correct 11 ms 19020 KB Output is correct
40 Correct 11 ms 19020 KB Output is correct
41 Correct 11 ms 18988 KB Output is correct
42 Correct 11 ms 19020 KB Output is correct
43 Correct 11 ms 19148 KB Output is correct
44 Correct 11 ms 19020 KB Output is correct
45 Correct 11 ms 18988 KB Output is correct
46 Correct 11 ms 19092 KB Output is correct
47 Correct 11 ms 19112 KB Output is correct
48 Correct 11 ms 19088 KB Output is correct
49 Correct 11 ms 19072 KB Output is correct
50 Correct 12 ms 19020 KB Output is correct
51 Correct 11 ms 19020 KB Output is correct
52 Correct 12 ms 19148 KB Output is correct
53 Correct 12 ms 19164 KB Output is correct
54 Correct 21 ms 20952 KB Output is correct
55 Correct 22 ms 20940 KB Output is correct
56 Correct 121 ms 36244 KB Output is correct
57 Correct 110 ms 32392 KB Output is correct
58 Correct 123 ms 36292 KB Output is correct
59 Correct 131 ms 36456 KB Output is correct
60 Correct 116 ms 36292 KB Output is correct
61 Correct 124 ms 35364 KB Output is correct
62 Correct 130 ms 36336 KB Output is correct
63 Correct 133 ms 36548 KB Output is correct
64 Correct 132 ms 36404 KB Output is correct
65 Correct 116 ms 36368 KB Output is correct
66 Correct 128 ms 36356 KB Output is correct
67 Correct 128 ms 36288 KB Output is correct
68 Correct 131 ms 36420 KB Output is correct
69 Correct 14 ms 19096 KB Output is correct
70 Correct 12 ms 19096 KB Output is correct
71 Correct 135 ms 36292 KB Output is correct
72 Correct 127 ms 36292 KB Output is correct
73 Correct 142 ms 36300 KB Output is correct
74 Correct 11 ms 19020 KB Output is correct
75 Correct 11 ms 19020 KB Output is correct
76 Correct 16 ms 19096 KB Output is correct
77 Correct 12 ms 19000 KB Output is correct
78 Correct 111 ms 36292 KB Output is correct
79 Correct 146 ms 36292 KB Output is correct
80 Correct 110 ms 36372 KB Output is correct
81 Correct 121 ms 36300 KB Output is correct
82 Correct 109 ms 36292 KB Output is correct
83 Correct 126 ms 36352 KB Output is correct
84 Correct 11 ms 19020 KB Output is correct
85 Correct 11 ms 19096 KB Output is correct
86 Correct 12 ms 19020 KB Output is correct
87 Correct 13 ms 19020 KB Output is correct
88 Correct 12 ms 19228 KB Output is correct
89 Correct 12 ms 19148 KB Output is correct
90 Correct 12 ms 19232 KB Output is correct
91 Correct 12 ms 19232 KB Output is correct
92 Correct 13 ms 19148 KB Output is correct
93 Correct 12 ms 19148 KB Output is correct
94 Correct 12 ms 19180 KB Output is correct
95 Correct 12 ms 19228 KB Output is correct
96 Correct 12 ms 19148 KB Output is correct
97 Correct 12 ms 19232 KB Output is correct
98 Correct 12 ms 19148 KB Output is correct
99 Correct 18 ms 19148 KB Output is correct
100 Correct 13 ms 19148 KB Output is correct
101 Correct 21 ms 20944 KB Output is correct
102 Correct 22 ms 20944 KB Output is correct
103 Correct 157 ms 36400 KB Output is correct
104 Correct 89 ms 32200 KB Output is correct
105 Correct 148 ms 36348 KB Output is correct
106 Correct 108 ms 36396 KB Output is correct
107 Correct 150 ms 36368 KB Output is correct
108 Correct 124 ms 35356 KB Output is correct
109 Correct 120 ms 36392 KB Output is correct
110 Correct 133 ms 36380 KB Output is correct
111 Correct 113 ms 37056 KB Output is correct
112 Correct 145 ms 37260 KB Output is correct
113 Correct 183 ms 36164 KB Output is correct
114 Correct 112 ms 36152 KB Output is correct
115 Correct 109 ms 36136 KB Output is correct