# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
75282 | KieranHorgan | Mechanical Doll (IOI18_doll) | C++17 | 170 ms | 13296 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
pair<int, int> exits[400005];
vector<int> X, Y;
int nodeIdx = 1;
vector<int> dep[300];
int build(vector<int> cur) {
if(cur.size() == 1) {
return cur[0];
}
int curNode = nodeIdx++;
vector<int> nextCur;
for(int i = 0; i < cur.size(); i+=2) {
nextCur.push_back(cur[i]);
}
exits[curNode].first = build(nextCur);
nextCur.clear();
for(int i = 1; i < cur.size(); i+=2) {
nextCur.push_back(cur[i]);
}
exits[curNode].second = build(nextCur);
nextCur.clear();
return -curNode;
}
void create_circuit(int M, vector<int> A) {
int N = A.size();
while(__builtin_popcount(A.size()+1) != 1) {
A.push_back(-1);
}
A.push_back(0);
// cerr << A.size() << endl;
vector<int> C(M + 1);
C[0] = -1;
for (int i = 1; i <= M; ++i) {
C[i] = -1;
}
vector<int> cur;
for(int i = 0; i < A.size(); i++) {
cur.push_back(A[i]);
}
cur.back() = -cur.back();
build(cur);
for(int i = 1; i < nodeIdx; i++) {
X.push_back(exits[i].first);
Y.push_back(exits[i].second);
}
// cerr << N << " -> " << X.size() << " (" << N + log2(N) << ")" << endl;
// double score;
// if(X.size() <= N + log2(N)) score = 100;
// else if(X.size() > 2*N) score = 0;
// else score = 100*(0.5 + 0.4 * ( (2*N - X.size()) / (N - log2(N)) ) * ( (2*N - X.size()) / (N - log2(N)) ));
// cerr << "Score: " << score << endl;
if(X.size() > N*2)
exit(-1);
answer(C, X, Y);
}
Compilation message (stderr)
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