| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 875479 |
2023-11-19T21:10:08 Z |
LucaLucaM |
ICC (CEOI16_icc) |
C++17 |
|
268 ms |
904 KB |
#include "icc.h"
#ifdef LOCAL
#include "grader.cpp"
#endif // LOCAL
#include <vector>
#include <iostream>
#include <cassert>
#include <algorithm>
#include <cstring>
#include <cmath>
#include <functional>
#ifndef LOCAL
#define assert //assert
#endif // LOCAL
const int NMAX = 100;
int p[NMAX + 1];
int root(int u) {
if (p[u] == u) {
return u;
}
return p[u] = root(p[u]);
}
void join(int u, int v) {
u = root(u), v = root(v);
p[u] = v;
}
int ask(std::vector<int> a, std::vector<int> b) {
if (a.empty() || b.empty()) {
return 0;
}
int sz_a = (int) a.size(), sz_b = (int) b.size();
int A[sz_a], B[sz_b];
for (int i = 0; i < sz_a; i++) {
A[i] = a[i];
}
for (int i = 0; i < sz_b; i++) {
B[i] = b[i];
}
return query(sz_a, sz_b, A, B);
}
std::vector<int> operator + (std::vector<int> a, std::vector<int> b) {
std::vector<int> c = a;
for (const auto &x : b) {
c.push_back(x);
}
return c;
}
/**
setRoad() -> alege doua cc si le da join
daca eu aflu aceste doua cc => pot face doua cb si o sa am 2 * log query uri
daca fac brut si mereu incerc sa aflu o cc noua =>
in total ~n(n - 1) / 2 query uri ca sa aflu cc desi cred ca e putin mai bine ceva gen mai trebuie scazut 1 * n
intre doua cc sigur nu am muchie
daca bag gen query pe bucati de radical cu ce e in afara ar iesi si ar fi 2 * sqrt(m) cred, m = #cc
**/
void run(int n) {
for (int i = 1; i <= n; i++) {
p[i] = i;
}
for (int k = 1; k < n; k++) {
bool ok = false;
std::vector<int> kk[n + 1];
for (int i = 1; i <= n; i++) {
kk[root(i)].push_back(i);
}
int m = n - (k - 1);
auto exclude = [&] (int bucket) {
std::vector<int> ret;
for (int i = 1; i <= n; i++) {
if (i != bucket)
ret = ret + kk[i];
}
return ret;
};
int bucket = -1;
for (int i = 1; i <= n && bucket == -1; i++) {
if (!kk[i].empty()) {
if (ask(kk[i], exclude(i))) {
bucket = i;
}
}
}
assert(bucket != -1);
std::vector<int> care;
for (int i = bucket + 1; i <= n; i++) {
if (!kk[i].empty()) {
care.push_back(i);
}
}
auto get_bucket2_bs = [&] (int bucket1) {
int l = 0, r = (int) care.size() -1, sol = -1;
while (l <= r) {
int mid = (l + r) / 2;
std::vector<int> intreb;
for (int i = 0; i <= mid; i++) {
intreb = intreb + kk[i];
}
if (ask(kk[bucket1], intreb) == 1) {
r = mid - 1;
sol = mid;
} else {
l = mid + 1;
}
}
return sol;
};
auto get_bucket2_brute = [&] (int bucket1) {
for (int i = bucket1 + 1; i <= n; i++) {
if (ask(kk[i], exclude(i)) == 1) {
return i;
}
}
};
int sol = get_bucket2_brute(bucket);
assert(sol != -1);
int bucket2 = sol;
assert(ask(kk[bucket], kk[bucket2]) == 1);
std::function<std::pair<int, int>(std::vector<int>, std::vector<int>) > get = [&] (std::vector<int> a, std::vector<int> b) { // SUS
assert(!a.empty() && !b.empty());
if ((int) a.size() == 1 && (int) b.size() == 1) {
return std::pair<int, int> {a[0], b[0]};
}
if ((int) a.size() == 1) {
std::vector<int> as;
int i = 0;
for (i = 0; i < (int) b.size() - i - 1; i++) {
as.push_back(b[i]);
}
if (ask(a, as) == 1) {
return get(a, as);
} else {
as.clear();
while (i < (int) b.size()) {
as.push_back(b[i++]);
}
assert((int) as.size() < (int) b.size());
return get(a, as);
}
} else {
std::vector<int> as;
int i = 0;
for (i = 0; i < (int) a.size() - i - 1; i++) {
as.push_back(a[i]);
}
if (ask(as, b) == 1) {
return get(as, b);
} else {
as.clear();
while (i < (int) a.size()) {
as.push_back(a[i++]);
}
assert((int) as.size() < (int) a.size());
return get(as, b);
}
}
};
std::vector<int> A, B;
for (const auto &x : kk[bucket]) {
A.push_back(x);
}
for (const auto &x : kk[bucket2]) {
B.push_back(x);
}
assert(!A.empty() && !B.empty());
std::pair<int, int> res = get(A, B);
join(res.first, res.second);
setRoad(res.first, res.second);
}
}
Compilation message
icc.cpp:13: warning: "assert" redefined
13 | #define assert //assert
|
In file included from /usr/include/c++/10/cassert:44,
from icc.cpp:7:
/usr/include/assert.h:92: note: this is the location of the previous definition
92 | # define assert(expr) \
|
icc.cpp: In function 'void run(int)':
icc.cpp:69:10: warning: unused variable 'ok' [-Wunused-variable]
69 | bool ok = false;
| ^~
icc.cpp:74:9: warning: unused variable 'm' [-Wunused-variable]
74 | int m = n - (k - 1);
| ^
icc.cpp:102:10: warning: variable 'get_bucket2_bs' set but not used [-Wunused-but-set-variable]
102 | auto get_bucket2_bs = [&] (int bucket1) {
| ^~~~~~~~~~~~~~
icc.cpp: In lambda function:
icc.cpp:126:5: warning: control reaches end of non-void function [-Wreturn-type]
126 | };
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
600 KB |
Ok! 174 queries used. |
| 2 |
Correct |
7 ms |
604 KB |
Ok! 172 queries used. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
74 ms |
852 KB |
Ok! 1549 queries used. |
| 2 |
Correct |
68 ms |
636 KB |
Ok! 1548 queries used. |
| 3 |
Correct |
67 ms |
604 KB |
Ok! 1554 queries used. |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
268 ms |
656 KB |
Number of queries more than 4500 out of 2250 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
239 ms |
652 KB |
Number of queries more than 4000 out of 2000 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
201 ms |
652 KB |
Number of queries more than 3550 out of 1775 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
193 ms |
904 KB |
Number of queries more than 3250 out of 1625 |
| 2 |
Halted |
0 ms |
0 KB |
- |
