#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef pair<pll,ll> plll;
typedef pair<pll,pll> ppll;
typedef long double ld;
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define fst first
#define snd second
#define ins insert
#define pb push_back
template< typename T,typename V>ostream &operator<< (ostream &out,const pair<T,V> x){ out << "{" << x.fst << " : " << x.snd << "}"; return out;}template< typename T>ostream &operator<< (ostream &out,const set<T> x){ for(auto &it : x){ out << it << " "; } return out;}template< typename T>ostream &operator<< (ostream &out,const multiset<T> x){ for(auto &it : x){ out << it << " "; } return out;}template< typename T,typename V>ostream &operator<< (ostream &out,const map<T,V> x){ for(auto &it : x){ out << "[" << it.fst << "]" << " = " << it.snd << "\n"; } return out;}template< typename T>ostream &operator<< (ostream &out,const vector<T> x){ for(int i = 0;i < x.size() - 1; ++i){ out << x[i] << " "; } out << x.back(); return out;}template< typename T>ostream &operator<< (ostream &out,const vector<vector<T> > x){ for(int i = 0;i < x.size() - 1; ++i){ out << "[" << i << "]" << " = {" << x[i] << "}\n"; } out << "[" << x.size() - 1 << "]" << " = {" << x.back() << "}\n"; return out;}
const int N = 1e6 + 5;
const int MOD = 1e9 + 7;
const int INF = 1e9;
set<int> pos1[N],pos2[N];
ll f[N];
void upd(int x){
for(int i = x;i < N; i |= (i + 1)){
f[i]++;
}
}
ll get(int x){
ll ret = 0;
for(int i = x;i >= 0;i = (i & (i + 1)) - 1){
ret += f[i];
}
return ret;
}
ll get(int l,int r){
return get(r) - get(l - 1);
}
bool used[N];
long long count_swaps(std::vector<int> s) {
ll ret = 0;
for(int i = 0;i < s.size(); ++i){
if(s[i] < 0)pos1[-s[i]].ins(i);
else pos2[s[i]].ins(i);
}
for(int i = 0; i < s.size(); ++i){
if(used[i])continue;
int r = 0;
if(s[i] < 0){
r = *pos2[-s[i]].begin();
}else{
r = *pos1[s[i]].begin();
}
if(s[i] > 0)ret++;
if(s[i] < 0)s[i] = -s[i];
pos1[s[i]].erase(pos1[s[i]].begin());
pos2[s[i]].erase(pos2[s[i]].begin());
ret += r - i - 1;
ret -= get(i,r);
used[r] = true;
upd(r);
}
return ret;
}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:41:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0;i < s.size(); ++i){
~~^~~~~~~~~~
shoes.cpp:45:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0; i < s.size(); ++i){
~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
94328 KB |
Output is correct |
2 |
Correct |
60 ms |
94328 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
94328 KB |
Output is correct |
2 |
Correct |
60 ms |
94328 KB |
Output is correct |
3 |
Correct |
60 ms |
94328 KB |
Output is correct |
4 |
Correct |
61 ms |
94328 KB |
Output is correct |
5 |
Correct |
68 ms |
94328 KB |
Output is correct |
6 |
Correct |
60 ms |
94332 KB |
Output is correct |
7 |
Correct |
60 ms |
94328 KB |
Output is correct |
8 |
Correct |
62 ms |
94328 KB |
Output is correct |
9 |
Correct |
59 ms |
94304 KB |
Output is correct |
10 |
Correct |
61 ms |
94328 KB |
Output is correct |
11 |
Correct |
59 ms |
94332 KB |
Output is correct |
12 |
Correct |
60 ms |
94328 KB |
Output is correct |
13 |
Correct |
60 ms |
94332 KB |
Output is correct |
14 |
Correct |
61 ms |
94328 KB |
Output is correct |
15 |
Correct |
62 ms |
94328 KB |
Output is correct |
16 |
Correct |
60 ms |
94332 KB |
Output is correct |
17 |
Correct |
61 ms |
94328 KB |
Output is correct |
18 |
Correct |
60 ms |
94328 KB |
Output is correct |
19 |
Correct |
61 ms |
94332 KB |
Output is correct |
20 |
Correct |
58 ms |
94328 KB |
Output is correct |
21 |
Correct |
60 ms |
94328 KB |
Output is correct |
22 |
Correct |
63 ms |
94328 KB |
Output is correct |
23 |
Correct |
65 ms |
94328 KB |
Output is correct |
24 |
Correct |
63 ms |
94328 KB |
Output is correct |
25 |
Correct |
59 ms |
94328 KB |
Output is correct |
26 |
Correct |
61 ms |
94328 KB |
Output is correct |
27 |
Correct |
62 ms |
94328 KB |
Output is correct |
28 |
Correct |
60 ms |
94328 KB |
Output is correct |
29 |
Correct |
75 ms |
94328 KB |
Output is correct |
30 |
Correct |
60 ms |
94296 KB |
Output is correct |
31 |
Correct |
60 ms |
94328 KB |
Output is correct |
32 |
Correct |
60 ms |
94332 KB |
Output is correct |
33 |
Correct |
61 ms |
94328 KB |
Output is correct |
34 |
Correct |
60 ms |
94328 KB |
Output is correct |
35 |
Correct |
63 ms |
94328 KB |
Output is correct |
36 |
Correct |
59 ms |
94328 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
94328 KB |
Output is correct |
2 |
Correct |
60 ms |
94328 KB |
Output is correct |
3 |
Correct |
60 ms |
94328 KB |
Output is correct |
4 |
Correct |
61 ms |
94328 KB |
Output is correct |
5 |
Correct |
62 ms |
94328 KB |
Output is correct |
6 |
Correct |
65 ms |
94328 KB |
Output is correct |
7 |
Correct |
60 ms |
94328 KB |
Output is correct |
8 |
Correct |
59 ms |
94328 KB |
Output is correct |
9 |
Correct |
61 ms |
94328 KB |
Output is correct |
10 |
Correct |
59 ms |
94328 KB |
Output is correct |
11 |
Correct |
61 ms |
94328 KB |
Output is correct |
12 |
Correct |
62 ms |
94328 KB |
Output is correct |
13 |
Correct |
61 ms |
94328 KB |
Output is correct |
14 |
Correct |
60 ms |
94332 KB |
Output is correct |
15 |
Correct |
61 ms |
94328 KB |
Output is correct |
16 |
Correct |
60 ms |
94328 KB |
Output is correct |
17 |
Correct |
61 ms |
94328 KB |
Output is correct |
18 |
Correct |
61 ms |
94456 KB |
Output is correct |
19 |
Correct |
61 ms |
94456 KB |
Output is correct |
20 |
Correct |
69 ms |
95480 KB |
Output is correct |
21 |
Correct |
67 ms |
95608 KB |
Output is correct |
22 |
Correct |
134 ms |
107000 KB |
Output is correct |
23 |
Correct |
143 ms |
107000 KB |
Output is correct |
24 |
Correct |
132 ms |
107000 KB |
Output is correct |
25 |
Correct |
139 ms |
106104 KB |
Output is correct |
26 |
Correct |
134 ms |
108292 KB |
Output is correct |
27 |
Correct |
147 ms |
108028 KB |
Output is correct |
28 |
Correct |
140 ms |
107384 KB |
Output is correct |
29 |
Correct |
151 ms |
107384 KB |
Output is correct |
30 |
Correct |
142 ms |
107384 KB |
Output is correct |
31 |
Correct |
133 ms |
108280 KB |
Output is correct |
32 |
Correct |
143 ms |
107384 KB |
Output is correct |
33 |
Correct |
141 ms |
107156 KB |
Output is correct |
34 |
Correct |
137 ms |
107388 KB |
Output is correct |
35 |
Correct |
62 ms |
94328 KB |
Output is correct |
36 |
Correct |
61 ms |
94332 KB |
Output is correct |
37 |
Correct |
147 ms |
107384 KB |
Output is correct |
38 |
Correct |
138 ms |
107384 KB |
Output is correct |
39 |
Correct |
139 ms |
107384 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
67 ms |
94328 KB |
Output is correct |
2 |
Correct |
68 ms |
94328 KB |
Output is correct |
3 |
Correct |
60 ms |
94328 KB |
Output is correct |
4 |
Correct |
62 ms |
94328 KB |
Output is correct |
5 |
Correct |
135 ms |
106104 KB |
Output is correct |
6 |
Correct |
171 ms |
106104 KB |
Output is correct |
7 |
Correct |
135 ms |
106104 KB |
Output is correct |
8 |
Correct |
135 ms |
106104 KB |
Output is correct |
9 |
Correct |
136 ms |
106104 KB |
Output is correct |
10 |
Correct |
153 ms |
106104 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
94328 KB |
Output is correct |
2 |
Correct |
60 ms |
94328 KB |
Output is correct |
3 |
Correct |
60 ms |
94328 KB |
Output is correct |
4 |
Correct |
61 ms |
94328 KB |
Output is correct |
5 |
Correct |
68 ms |
94328 KB |
Output is correct |
6 |
Correct |
60 ms |
94332 KB |
Output is correct |
7 |
Correct |
60 ms |
94328 KB |
Output is correct |
8 |
Correct |
62 ms |
94328 KB |
Output is correct |
9 |
Correct |
59 ms |
94304 KB |
Output is correct |
10 |
Correct |
61 ms |
94328 KB |
Output is correct |
11 |
Correct |
59 ms |
94332 KB |
Output is correct |
12 |
Correct |
60 ms |
94328 KB |
Output is correct |
13 |
Correct |
60 ms |
94332 KB |
Output is correct |
14 |
Correct |
61 ms |
94328 KB |
Output is correct |
15 |
Correct |
62 ms |
94328 KB |
Output is correct |
16 |
Correct |
60 ms |
94332 KB |
Output is correct |
17 |
Correct |
61 ms |
94328 KB |
Output is correct |
18 |
Correct |
60 ms |
94328 KB |
Output is correct |
19 |
Correct |
61 ms |
94332 KB |
Output is correct |
20 |
Correct |
58 ms |
94328 KB |
Output is correct |
21 |
Correct |
60 ms |
94328 KB |
Output is correct |
22 |
Correct |
63 ms |
94328 KB |
Output is correct |
23 |
Correct |
65 ms |
94328 KB |
Output is correct |
24 |
Correct |
63 ms |
94328 KB |
Output is correct |
25 |
Correct |
59 ms |
94328 KB |
Output is correct |
26 |
Correct |
61 ms |
94328 KB |
Output is correct |
27 |
Correct |
62 ms |
94328 KB |
Output is correct |
28 |
Correct |
60 ms |
94328 KB |
Output is correct |
29 |
Correct |
75 ms |
94328 KB |
Output is correct |
30 |
Correct |
60 ms |
94296 KB |
Output is correct |
31 |
Correct |
60 ms |
94328 KB |
Output is correct |
32 |
Correct |
60 ms |
94332 KB |
Output is correct |
33 |
Correct |
61 ms |
94328 KB |
Output is correct |
34 |
Correct |
60 ms |
94328 KB |
Output is correct |
35 |
Correct |
63 ms |
94328 KB |
Output is correct |
36 |
Correct |
59 ms |
94328 KB |
Output is correct |
37 |
Correct |
60 ms |
94328 KB |
Output is correct |
38 |
Correct |
61 ms |
94240 KB |
Output is correct |
39 |
Correct |
59 ms |
94332 KB |
Output is correct |
40 |
Correct |
60 ms |
94328 KB |
Output is correct |
41 |
Correct |
60 ms |
94460 KB |
Output is correct |
42 |
Correct |
62 ms |
94456 KB |
Output is correct |
43 |
Correct |
62 ms |
94456 KB |
Output is correct |
44 |
Correct |
62 ms |
94456 KB |
Output is correct |
45 |
Correct |
62 ms |
94456 KB |
Output is correct |
46 |
Correct |
60 ms |
94456 KB |
Output is correct |
47 |
Correct |
61 ms |
94456 KB |
Output is correct |
48 |
Correct |
61 ms |
94456 KB |
Output is correct |
49 |
Correct |
60 ms |
94456 KB |
Output is correct |
50 |
Correct |
60 ms |
94456 KB |
Output is correct |
51 |
Correct |
60 ms |
94456 KB |
Output is correct |
52 |
Correct |
60 ms |
94456 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
60 ms |
94328 KB |
Output is correct |
2 |
Correct |
60 ms |
94328 KB |
Output is correct |
3 |
Correct |
60 ms |
94328 KB |
Output is correct |
4 |
Correct |
61 ms |
94328 KB |
Output is correct |
5 |
Correct |
68 ms |
94328 KB |
Output is correct |
6 |
Correct |
60 ms |
94332 KB |
Output is correct |
7 |
Correct |
60 ms |
94328 KB |
Output is correct |
8 |
Correct |
62 ms |
94328 KB |
Output is correct |
9 |
Correct |
59 ms |
94304 KB |
Output is correct |
10 |
Correct |
61 ms |
94328 KB |
Output is correct |
11 |
Correct |
59 ms |
94332 KB |
Output is correct |
12 |
Correct |
60 ms |
94328 KB |
Output is correct |
13 |
Correct |
60 ms |
94332 KB |
Output is correct |
14 |
Correct |
61 ms |
94328 KB |
Output is correct |
15 |
Correct |
62 ms |
94328 KB |
Output is correct |
16 |
Correct |
60 ms |
94332 KB |
Output is correct |
17 |
Correct |
61 ms |
94328 KB |
Output is correct |
18 |
Correct |
60 ms |
94328 KB |
Output is correct |
19 |
Correct |
61 ms |
94332 KB |
Output is correct |
20 |
Correct |
58 ms |
94328 KB |
Output is correct |
21 |
Correct |
60 ms |
94328 KB |
Output is correct |
22 |
Correct |
63 ms |
94328 KB |
Output is correct |
23 |
Correct |
65 ms |
94328 KB |
Output is correct |
24 |
Correct |
63 ms |
94328 KB |
Output is correct |
25 |
Correct |
59 ms |
94328 KB |
Output is correct |
26 |
Correct |
61 ms |
94328 KB |
Output is correct |
27 |
Correct |
62 ms |
94328 KB |
Output is correct |
28 |
Correct |
60 ms |
94328 KB |
Output is correct |
29 |
Correct |
75 ms |
94328 KB |
Output is correct |
30 |
Correct |
60 ms |
94296 KB |
Output is correct |
31 |
Correct |
60 ms |
94328 KB |
Output is correct |
32 |
Correct |
60 ms |
94332 KB |
Output is correct |
33 |
Correct |
61 ms |
94328 KB |
Output is correct |
34 |
Correct |
60 ms |
94328 KB |
Output is correct |
35 |
Correct |
63 ms |
94328 KB |
Output is correct |
36 |
Correct |
59 ms |
94328 KB |
Output is correct |
37 |
Correct |
60 ms |
94328 KB |
Output is correct |
38 |
Correct |
61 ms |
94328 KB |
Output is correct |
39 |
Correct |
62 ms |
94328 KB |
Output is correct |
40 |
Correct |
65 ms |
94328 KB |
Output is correct |
41 |
Correct |
60 ms |
94328 KB |
Output is correct |
42 |
Correct |
59 ms |
94328 KB |
Output is correct |
43 |
Correct |
61 ms |
94328 KB |
Output is correct |
44 |
Correct |
59 ms |
94328 KB |
Output is correct |
45 |
Correct |
61 ms |
94328 KB |
Output is correct |
46 |
Correct |
62 ms |
94328 KB |
Output is correct |
47 |
Correct |
61 ms |
94328 KB |
Output is correct |
48 |
Correct |
60 ms |
94332 KB |
Output is correct |
49 |
Correct |
61 ms |
94328 KB |
Output is correct |
50 |
Correct |
60 ms |
94328 KB |
Output is correct |
51 |
Correct |
61 ms |
94328 KB |
Output is correct |
52 |
Correct |
61 ms |
94456 KB |
Output is correct |
53 |
Correct |
61 ms |
94456 KB |
Output is correct |
54 |
Correct |
69 ms |
95480 KB |
Output is correct |
55 |
Correct |
67 ms |
95608 KB |
Output is correct |
56 |
Correct |
134 ms |
107000 KB |
Output is correct |
57 |
Correct |
143 ms |
107000 KB |
Output is correct |
58 |
Correct |
132 ms |
107000 KB |
Output is correct |
59 |
Correct |
139 ms |
106104 KB |
Output is correct |
60 |
Correct |
134 ms |
108292 KB |
Output is correct |
61 |
Correct |
147 ms |
108028 KB |
Output is correct |
62 |
Correct |
140 ms |
107384 KB |
Output is correct |
63 |
Correct |
151 ms |
107384 KB |
Output is correct |
64 |
Correct |
142 ms |
107384 KB |
Output is correct |
65 |
Correct |
133 ms |
108280 KB |
Output is correct |
66 |
Correct |
143 ms |
107384 KB |
Output is correct |
67 |
Correct |
141 ms |
107156 KB |
Output is correct |
68 |
Correct |
137 ms |
107388 KB |
Output is correct |
69 |
Correct |
62 ms |
94328 KB |
Output is correct |
70 |
Correct |
61 ms |
94332 KB |
Output is correct |
71 |
Correct |
147 ms |
107384 KB |
Output is correct |
72 |
Correct |
138 ms |
107384 KB |
Output is correct |
73 |
Correct |
139 ms |
107384 KB |
Output is correct |
74 |
Correct |
67 ms |
94328 KB |
Output is correct |
75 |
Correct |
68 ms |
94328 KB |
Output is correct |
76 |
Correct |
60 ms |
94328 KB |
Output is correct |
77 |
Correct |
62 ms |
94328 KB |
Output is correct |
78 |
Correct |
135 ms |
106104 KB |
Output is correct |
79 |
Correct |
171 ms |
106104 KB |
Output is correct |
80 |
Correct |
135 ms |
106104 KB |
Output is correct |
81 |
Correct |
135 ms |
106104 KB |
Output is correct |
82 |
Correct |
136 ms |
106104 KB |
Output is correct |
83 |
Correct |
153 ms |
106104 KB |
Output is correct |
84 |
Correct |
60 ms |
94328 KB |
Output is correct |
85 |
Correct |
61 ms |
94240 KB |
Output is correct |
86 |
Correct |
59 ms |
94332 KB |
Output is correct |
87 |
Correct |
60 ms |
94328 KB |
Output is correct |
88 |
Correct |
60 ms |
94460 KB |
Output is correct |
89 |
Correct |
62 ms |
94456 KB |
Output is correct |
90 |
Correct |
62 ms |
94456 KB |
Output is correct |
91 |
Correct |
62 ms |
94456 KB |
Output is correct |
92 |
Correct |
62 ms |
94456 KB |
Output is correct |
93 |
Correct |
60 ms |
94456 KB |
Output is correct |
94 |
Correct |
61 ms |
94456 KB |
Output is correct |
95 |
Correct |
61 ms |
94456 KB |
Output is correct |
96 |
Correct |
60 ms |
94456 KB |
Output is correct |
97 |
Correct |
60 ms |
94456 KB |
Output is correct |
98 |
Correct |
60 ms |
94456 KB |
Output is correct |
99 |
Correct |
60 ms |
94456 KB |
Output is correct |
100 |
Correct |
61 ms |
94456 KB |
Output is correct |
101 |
Correct |
69 ms |
95588 KB |
Output is correct |
102 |
Correct |
70 ms |
95608 KB |
Output is correct |
103 |
Correct |
175 ms |
108280 KB |
Output is correct |
104 |
Correct |
145 ms |
108296 KB |
Output is correct |
105 |
Correct |
181 ms |
108280 KB |
Output is correct |
106 |
Correct |
148 ms |
107384 KB |
Output is correct |
107 |
Correct |
210 ms |
108280 KB |
Output is correct |
108 |
Correct |
178 ms |
108208 KB |
Output is correct |
109 |
Correct |
131 ms |
107384 KB |
Output is correct |
110 |
Correct |
142 ms |
107384 KB |
Output is correct |
111 |
Correct |
151 ms |
107384 KB |
Output is correct |
112 |
Correct |
172 ms |
108280 KB |
Output is correct |
113 |
Correct |
184 ms |
107384 KB |
Output is correct |
114 |
Correct |
142 ms |
107384 KB |
Output is correct |
115 |
Correct |
144 ms |
107388 KB |
Output is correct |