#include <iostream>
#include <vector>
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,avx,avx2,popcnt,tune=native")
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
int c = 1, a[400005];
vector<int> g[400005];
ordered_set s[400005];
void trya() {
int h = c, k;
cin >> k;
if (k == 0) {
c++;
int k = c, l;
trya();
c++;
l = c;
trya();
g[h].push_back(k);
g[h].push_back(l);
}
else a[h] = k;
}
long long int dfs(int x) {
if (g[x].size() == 0) {
s[x].insert(a[x]);
return 0;
}
long long int res = 0, c = 0, h = 1;
for (int w : g[x]) {
c += dfs(w);
h *= s[w].size();
int flag = 0;
if (s[w].size() > s[x].size()) {
swap(s[w], s[x]);
flag = 1;
}
for (int v : s[w]) {
if (flag == 1) {
res += s[x].order_of_key(v);
//cout << 123 << " " << x << " " << s[x].order_of_key(v) << " " << res << endl;
}
else {
res += s[x].size() - s[x].order_of_key(v);
//cout << 123 << " " << x << " " << s[x].order_of_key(v) << " " << res << endl;
}
}
for (int v : s[w]) {
s[x].insert(v);
}
}
/*cout << x << " " << min(res, h - res) + c << endl;
for (int w : s[x]) {
cout << w << " ";
}
cout << endl;*/
return min(res, h - res) + c;
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n;
cin >> n;
trya();
cout << dfs(1);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
25 ms |
41052 KB |
Output is correct |
2 |
Correct |
25 ms |
41052 KB |
Output is correct |
3 |
Correct |
24 ms |
41052 KB |
Output is correct |
4 |
Correct |
24 ms |
41052 KB |
Output is correct |
5 |
Correct |
24 ms |
41052 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
32 ms |
41052 KB |
Output is correct |
2 |
Correct |
25 ms |
41052 KB |
Output is correct |
3 |
Correct |
25 ms |
41052 KB |
Output is correct |
4 |
Correct |
24 ms |
41052 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
26 ms |
41308 KB |
Output is correct |
2 |
Correct |
27 ms |
41308 KB |
Output is correct |
3 |
Correct |
26 ms |
41420 KB |
Output is correct |
4 |
Correct |
31 ms |
41404 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
290 ms |
42364 KB |
Output is correct |
2 |
Correct |
34 ms |
42332 KB |
Output is correct |
3 |
Correct |
275 ms |
42324 KB |
Output is correct |
4 |
Correct |
368 ms |
42592 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1055 ms |
44352 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
216 ms |
60756 KB |
Output is correct |
2 |
Execution timed out |
1077 ms |
48464 KB |
Time limit exceeded |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1072 ms |
61688 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1037 ms |
48212 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
140 ms |
65536 KB |
Execution killed with signal 9 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1010 ms |
52676 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Execution timed out |
1033 ms |
52272 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |