#include "scales.h"
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(1);
int n = 6;
int order[10];
vector<tuple<int, int, int> > three;
vector<tuple<int, int, int, int> > four;
void init(int T) {
for(int a = 1; a <= n; a++) for(int b = a + 1; b <= n; b++) for(int c = b + 1; c <= n; c++) {
three.emplace_back(a, b, c);
}
for(int d = 1; d <= n; d++) for(int a = 1; a <= n; a++) for(int b = a + 1; b <= n; b++) for(int c = b + 1; c <= n; c++) {
if (d != a && d != b && d != c) {
four.emplace_back(a, b, c, d);
}
}
}
int ask_three(int a, int b, int c, int type, vector<int> tmp) {
order[1] = a; order[2] = b; order[3] = c;
sort(order + 1, order + 4, [&] (const int &x, const int &y) {
return tmp[x] < tmp[y];
});
return order[type];
}
int ask_four(int a, int b, int c, int d, vector<int> tmp) {
int ret = 0;
tmp[0] = 1e9;
if (tmp[a] > tmp[d] && tmp[a] < tmp[ret]) ret = a;
if (tmp[b] > tmp[d] && tmp[b] < tmp[ret]) ret = b;
if (tmp[c] > tmp[d] && tmp[c] < tmp[ret]) ret = c;
if (ret == 0) return ask_three(a, b, c, 1, tmp);
return ret;
}
void orderCoins() {
// shuffle(three.begin(), three.end(), rng);
// shuffle(four.begin(), four.end(), rng);
vector<vector<int> > p;
for(int i = 1; i <= n; i++) order[i] = i;
do {
vector<int> tmp(n + 1);
for(int i = 1; i <= n; i++) tmp[i] = order[i];
p.push_back(tmp);
} while (next_permutation(order + 1, order + n + 1));
while (p.size() > 1) {
vector<int> best;
best.push_back(p.size());
int _a, _b, _c, _d, _t;
for(auto &[a, b, c, d] : four) {
vector<int> choice;
for(int result = 1; result <= n; result++) {
int sat = 0;
for(auto &tmp : p) sat += result == ask_four(a, b, c, d, tmp);
if (sat) choice.push_back(sat);
}
if (choice.empty()) continue;
sort(choice.begin(), choice.end(), greater<int> ());
if (best > choice) {
best = choice;
_a = a;
_b = b;
_c = c;
_d = d;
_t = 0;
}
}
for(auto &[a, b, c] : three) for(int type = 3; type >= 1; type--) {
vector<int> choice;
for(int result = 1; result <= n; result++) {
int sat = 0;
for(auto &tmp : p) sat += result == ask_three(a, b, c, type, tmp);
if (sat) choice.push_back(sat);
}
if (choice.empty()) continue;
sort(choice.begin(), choice.end(), greater<int> ());
if (best > choice) {
best = choice;
_a = a;
_b = b;
_c = c;
_t = type;
}
}
#ifdef ngu
cout << _a << " " << _b << " " << _c << " " << _d << " " << _t << endl;
#endif // ngu
int result = 0;
vector<vector<int> > _p;
if (_t) {
if (_t == 1) result = getLightest(_a, _b, _c);
if (_t == 2) result = getMedian(_a, _b, _c);
if (_t == 3) result = getHeaviest(_a, _b, _c);
for(auto &tmp : p) if (ask_three(_a, _b, _c, _t, tmp) == result) {
_p.push_back(tmp);
}
assert(_p.size() < p.size());
p = _p;
}
else {
result = getNextLightest(_a, _b, _c, _d);
for(auto &tmp : p) if (ask_four(_a, _b, _c, _d, tmp) == result) {
_p.push_back(tmp);
}
assert(_p.size() < p.size());
p = _p;
}
}
vector<int> tmp = p.back();
int hidden[n];
for(int i = 1; i <= n; i++) hidden[tmp[i] - 1] = i;
#ifdef ngu
for(int i = 0; i < n; i++) cerr << hidden[i] << " ";
#endif // ngu
answer(hidden);
}
Compilation message
scales.cpp: In function 'void init(int)':
scales.cpp:14:15: warning: unused parameter 'T' [-Wunused-parameter]
14 | void init(int T) {
| ~~~~^
scales.cpp: In function 'void orderCoins()':
scales.cpp:58:26: warning: conversion from 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} to 'std::vector<int>::value_type' {aka 'int'} may change value [-Wconversion]
58 | best.push_back(p.size());
| ~~~~~~^~
scales.cpp:105:7: warning: '_t' may be used uninitialized in this function [-Wmaybe-uninitialized]
105 | if (_t == 1) result = getLightest(_a, _b, _c);
| ^~
scales.cpp:116:31: warning: '_d' may be used uninitialized in this function [-Wmaybe-uninitialized]
116 | result = getNextLightest(_a, _b, _c, _d);
| ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
scales.cpp:116:31: warning: '_c' may be used uninitialized in this function [-Wmaybe-uninitialized]
scales.cpp:116:31: warning: '_b' may be used uninitialized in this function [-Wmaybe-uninitialized]
scales.cpp:116:31: warning: '_a' may be used uninitialized in this function [-Wmaybe-uninitialized]
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
449 ms |
504 KB |
Output is correct |
2 |
Correct |
468 ms |
344 KB |
Output is correct |
3 |
Correct |
459 ms |
596 KB |
Output is correct |
4 |
Partially correct |
439 ms |
492 KB |
Output is partially correct |
5 |
Correct |
447 ms |
740 KB |
Output is correct |
6 |
Correct |
447 ms |
348 KB |
Output is correct |
7 |
Partially correct |
441 ms |
504 KB |
Output is partially correct |
8 |
Partially correct |
455 ms |
592 KB |
Output is partially correct |
9 |
Partially correct |
617 ms |
504 KB |
Output is partially correct |
10 |
Partially correct |
442 ms |
344 KB |
Output is partially correct |
11 |
Partially correct |
479 ms |
592 KB |
Output is partially correct |
12 |
Correct |
437 ms |
500 KB |
Output is correct |
13 |
Partially correct |
456 ms |
504 KB |
Output is partially correct |
14 |
Correct |
439 ms |
600 KB |
Output is correct |
15 |
Correct |
445 ms |
496 KB |
Output is correct |
16 |
Partially correct |
448 ms |
500 KB |
Output is partially correct |
17 |
Partially correct |
444 ms |
344 KB |
Output is partially correct |
18 |
Partially correct |
443 ms |
504 KB |
Output is partially correct |
19 |
Correct |
480 ms |
348 KB |
Output is correct |
20 |
Partially correct |
455 ms |
512 KB |
Output is partially correct |
21 |
Correct |
463 ms |
596 KB |
Output is correct |
22 |
Correct |
455 ms |
496 KB |
Output is correct |
23 |
Partially correct |
453 ms |
348 KB |
Output is partially correct |
24 |
Correct |
441 ms |
504 KB |
Output is correct |
25 |
Correct |
485 ms |
504 KB |
Output is correct |
26 |
Correct |
487 ms |
348 KB |
Output is correct |
27 |
Partially correct |
445 ms |
344 KB |
Output is partially correct |
28 |
Partially correct |
461 ms |
512 KB |
Output is partially correct |
29 |
Correct |
495 ms |
500 KB |
Output is correct |
30 |
Correct |
442 ms |
504 KB |
Output is correct |
31 |
Correct |
452 ms |
752 KB |
Output is correct |
32 |
Partially correct |
446 ms |
500 KB |
Output is partially correct |
33 |
Correct |
450 ms |
508 KB |
Output is correct |
34 |
Partially correct |
453 ms |
596 KB |
Output is partially correct |
35 |
Correct |
442 ms |
504 KB |
Output is correct |
36 |
Partially correct |
443 ms |
500 KB |
Output is partially correct |
37 |
Partially correct |
472 ms |
348 KB |
Output is partially correct |
38 |
Partially correct |
439 ms |
500 KB |
Output is partially correct |
39 |
Correct |
451 ms |
592 KB |
Output is correct |
40 |
Correct |
443 ms |
504 KB |
Output is correct |