#include "scales.h"
#include <bits/stdc++.h>
using namespace std;
#define pii pair<int, int>
#define ff first
#define ss second
#define pb push_back
void init(int T) {
}
/*
getHeaviest()
getLightest()
getMedian()
getNextLightest()
*/
vector<pair<int, vector<int>>> clues; // {type, {answer, [query elements]}}
vector<int> perm = {0, 1, 2, 3, 4, 5, 6};
vector<vector<int>> FindAllPossible() {
// cerr << "CURRENT CLUES:\n";
// for (pair<int, vector<int>> &cur : clues) {
// cerr << cur.ff << " | ";
// for (int &x : cur.ss) cerr << x << ' ';
// cerr << endl;
// }
sort(perm.begin(), perm.end());
vector<vector<int>> res = {};
do {
bool valid = true;
for (pair<int, vector<int>> &cur : clues) {
// cerr << "CLUE " << cur.ff << ' ';
// for (int &x : cur.ss) cerr << x << ' '; cerr << endl;
if (cur.ff == 1) {
for (int i = 1; i <= 3; i++) {
if (cur.ss[0] == cur.ss[i]) continue;
valid &= (perm[cur.ss[0]] > perm[cur.ss[i]]);
}
}
if (cur.ff == 2) {
for (int i = 1; i <= 3; i++) {
if (cur.ss[0] == cur.ss[i]) continue;
valid &= (perm[cur.ss[0]] < perm[cur.ss[i]]);
}
}
if (cur.ff == 3) {
int cnt = 0;
for (int i = 1; i <= 3; i++) {
if (cur.ss[0] == cur.ss[i]) continue;
cnt += (perm[cur.ss[0]] < perm[cur.ss[i]]);
}
valid &= (cnt == 1);
}
if (cur.ff == 4) {
bool allsmaller = true;
for (int i = 1; i <= 3; i++) {
allsmaller &= (perm[cur.ss[i]] < perm[cur.ss[4]]);
}
if (allsmaller) {
for (int i = 1; i <= 3; i++) {
if (cur.ss[0] == cur.ss[i]) continue;
valid &= (perm[cur.ss[i]] > perm[cur.ss[0]]);
}
} else {
valid &= (perm[cur.ss[0]] > perm[cur.ss[4]]);
for (int i = 1; i <= 3; i++) {
if (cur.ss[0] == cur.ss[i]) continue;
valid &= (perm[cur.ss[i]] < perm[cur.ss[4]] || perm[cur.ss[i]] > perm[cur.ss[0]]);
}
}
}
if (!valid) break;
}
if (valid) {
// cerr << "FOUND ";
// for (int &x : perm) cerr << x << ' ';
// cerr << endl;
res.pb(perm);
}
} while (next_permutation(perm.begin() + 1, perm.end()));
return res;
}
void Answer(vector<int> v) {
int ans[6];
for (int i = 1; i <= 6; i++) ans[v[i] - 1] = i;
answer(ans);
}
int Heaviest(int a, int b, int c = 0) {
if (c == 0) c = (min(a, b) != 1 ? 1 : max(a, b) != 2 ? 2 : 3);
int res = getHeaviest(a, b, c);
clues.pb({1, {res, a, b, c}});
return res;
}
int Lightest(int a, int b, int c = 0) {
if (c == 0) c = (min(a, b) != 1 ? 1 : max(a, b) != 2 ? 2 : 3);
int res = getLightest(a, b, c);
clues.pb({2, {res, a, b, c}});
return res;
}
int Median(int a, int b, int c) {
int res = getMedian(a, b, c);
clues.pb({3, {res, a, b, c}});
return res;
}
int NextLightest(int a, int b, int c, int d) {
int res = getNextLightest(a, b, c, d);
clues.pb({4, {res, a, b, c, d}});
return res;
}
/*
getHeaviest()
getLightest()
getMedian()
getNextLightest()
*/
int TryHeaviest(int a, int b, int c) {
int res = 0;
clues.pb({1, {a, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({1, {b, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({1, {c, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
return res;
}
int TryLightest(int a, int b, int c) {
int res = 0;
clues.pb({2, {a, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({2, {b, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({2, {c, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
return res;
}
int TryMedian(int a, int b, int c) {
int res = 0;
clues.pb({3, {a, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({3, {b, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({3, {c, a, b, c}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
return res;
}
int TryNextLightest(int a, int b, int c, int d) {
int res = 0;
clues.pb({4, {a, a, b, c, d}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({4, {b, a, b, c, d}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
clues.pb({4, {c, a, b, c, d}}); res = max(res, (int)FindAllPossible().size()); clues.pop_back();
return res;
}
mt19937 rng(time(NULL));
int GetRand(int x) {
return rng() % x;
}
void orderCoins() {
clues.clear();
int temp = Lightest(1, 2, 3);
if (temp == 1) Heaviest(2, 3, 4);
if (temp == 2) Heaviest(1, 3, 4);
if (temp == 3) Heaviest(1, 2, 4);
// cout << FindAllPossible().size() << endl;
// try pure exhaust?
vector<vector<int>> fin = FindAllPossible();
while (fin.size() > 1) {
// cerr << "Current size: " << fin.size() << ", ";
// cerr << "Current queries: " << clues.size() << endl;
int cursz = fin.size(), res;
vector<int> nxtquery;
vector<vector<int>> nxtqueries;
for (int a = 1; a <= 6; a++) {
for (int b = a + 1; b <= 6; b++) {
for (int c = b + 1; c <= 6; c++) {
res = TryHeaviest(a, b, c);
if (res <= cursz) {
if (res < cursz) nxtqueries.clear();
nxtqueries.pb({1, a, b, c});
cursz = res;
}
res = TryLightest(a, b, c);
if (res <= cursz) {
if (res < cursz) nxtqueries.clear();
nxtqueries.pb({2, a, b, c});
cursz = res;
}
res = TryMedian(a, b, c);
if (res <= cursz) {
if (res < cursz) nxtqueries.clear();
nxtqueries.pb({3, a, b, c});
cursz = res;
}
for (int d = 1; d <= 6; d++) {
if (d == a || d == b || d == c) continue;
res = TryNextLightest(a, b, c, d);
if (res <= cursz) {
if (res < cursz) nxtqueries.clear();
nxtqueries.pb({4, a, b, c, d});
cursz = res;
}
}
}
}
}
nxtquery = nxtqueries[(GetRand(nxtqueries.size()))];
if (nxtquery.front() == 1) Heaviest(nxtquery[1], nxtquery[2], nxtquery[3]);
if (nxtquery.front() == 2) Lightest(nxtquery[1], nxtquery[2], nxtquery[3]);
if (nxtquery.front() == 3) Median(nxtquery[1], nxtquery[2], nxtquery[3]);
if (nxtquery.front() == 4) NextLightest(nxtquery[1], nxtquery[2], nxtquery[3], nxtquery[4]);
fin = FindAllPossible();
}
Answer(fin.front());
}
/*
15 edges to consider (know all -> must can sort)
full sol: 6 queries (by math)
(current sol: 7 queries)
full sol is consider 2 queries at once (?)
*/
Compilation message
scales.cpp: In function 'void init(int)':
scales.cpp:10:15: warning: unused parameter 'T' [-Wunused-parameter]
10 | void init(int T) {
| ~~~~^
scales.cpp: In function 'int GetRand(int)':
scales.cpp:151:15: warning: conversion from 'std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
151 | return rng() % x;
| ~~~~~~^~~
scales.cpp: In function 'void orderCoins()':
scales.cpp:168:23: warning: conversion from 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
168 | int cursz = fin.size(), res;
| ~~~~~~~~^~
scales.cpp:207:49: warning: conversion from 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
207 | nxtquery = nxtqueries[(GetRand(nxtqueries.size()))];
| ~~~~~~~~~~~~~~~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Partially correct |
199 ms |
308 KB |
Output is partially correct |
| 2 |
Partially correct |
216 ms |
320 KB |
Output is partially correct |
| 3 |
Partially correct |
207 ms |
300 KB |
Output is partially correct |
| 4 |
Partially correct |
205 ms |
212 KB |
Output is partially correct |
| 5 |
Partially correct |
197 ms |
320 KB |
Output is partially correct |
| 6 |
Partially correct |
198 ms |
308 KB |
Output is partially correct |
| 7 |
Partially correct |
210 ms |
300 KB |
Output is partially correct |
| 8 |
Partially correct |
202 ms |
312 KB |
Output is partially correct |
| 9 |
Partially correct |
206 ms |
308 KB |
Output is partially correct |
| 10 |
Partially correct |
210 ms |
316 KB |
Output is partially correct |
| 11 |
Partially correct |
210 ms |
212 KB |
Output is partially correct |
| 12 |
Partially correct |
206 ms |
308 KB |
Output is partially correct |
| 13 |
Partially correct |
203 ms |
304 KB |
Output is partially correct |
| 14 |
Partially correct |
214 ms |
304 KB |
Output is partially correct |
| 15 |
Partially correct |
207 ms |
324 KB |
Output is partially correct |
| 16 |
Partially correct |
198 ms |
212 KB |
Output is partially correct |
| 17 |
Partially correct |
202 ms |
300 KB |
Output is partially correct |
| 18 |
Partially correct |
201 ms |
212 KB |
Output is partially correct |
| 19 |
Partially correct |
211 ms |
308 KB |
Output is partially correct |
| 20 |
Partially correct |
216 ms |
300 KB |
Output is partially correct |
| 21 |
Partially correct |
220 ms |
308 KB |
Output is partially correct |
| 22 |
Partially correct |
214 ms |
304 KB |
Output is partially correct |
| 23 |
Partially correct |
209 ms |
212 KB |
Output is partially correct |
| 24 |
Partially correct |
217 ms |
432 KB |
Output is partially correct |
| 25 |
Partially correct |
195 ms |
300 KB |
Output is partially correct |
| 26 |
Partially correct |
200 ms |
300 KB |
Output is partially correct |
| 27 |
Partially correct |
214 ms |
308 KB |
Output is partially correct |
| 28 |
Partially correct |
204 ms |
300 KB |
Output is partially correct |
| 29 |
Partially correct |
195 ms |
308 KB |
Output is partially correct |
| 30 |
Partially correct |
214 ms |
212 KB |
Output is partially correct |
| 31 |
Partially correct |
222 ms |
320 KB |
Output is partially correct |
| 32 |
Partially correct |
197 ms |
320 KB |
Output is partially correct |
| 33 |
Partially correct |
206 ms |
212 KB |
Output is partially correct |
| 34 |
Partially correct |
227 ms |
336 KB |
Output is partially correct |
| 35 |
Partially correct |
214 ms |
212 KB |
Output is partially correct |
| 36 |
Partially correct |
209 ms |
324 KB |
Output is partially correct |
| 37 |
Partially correct |
218 ms |
304 KB |
Output is partially correct |
| 38 |
Partially correct |
212 ms |
320 KB |
Output is partially correct |
| 39 |
Partially correct |
213 ms |
308 KB |
Output is partially correct |
| 40 |
Partially correct |
217 ms |
304 KB |
Output is partially correct |
