#include <bits/stdc++.h>
using namespace std;
const size_t BOTTLES = 3;
struct State
{
array<int, BOTTLES> bottles;
};
struct TestCase
{
State max;
State initial;
};
TestCase read_test_case();
void solve_test_case(const TestCase&);
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
solve_test_case(read_test_case());
}
istream& operator>>(istream& stream, State& s)
{
for (auto& b : s.bottles) stream >> b;
return stream;
}
TestCase read_test_case()
{
TestCase tc;
cin >> tc.max >> tc.initial;
return tc;
}
bool operator<(const State& lhs, const State& rhs)
{
return lhs.bottles < rhs.bottles;
}
vector<State> get_neighbors(const State& s, const State& max)
{
vector<State> result;
for (size_t from = 0; from < BOTTLES; from++)
for (size_t to = 0; to < BOTTLES; to++)
{
auto amount = min(s.bottles[from], max.bottles[to] - s.bottles[to]);
auto s2 = s;
s2.bottles[from] -= amount;
s2.bottles[to] += amount;
result.push_back(s2);
}
return result;
}
void solve_test_case(const TestCase& tc)
{
map<State, bool> visited;
queue<pair<State, size_t>> queue;
visited[tc.initial] = true;
queue.push({tc.initial, 0});
vector<int> result(tc.max.bottles[2] + 1, -1);
while (!queue.empty())
{
auto [state, time] = queue.front();
queue.pop();
for (auto b : state.bottles)
if (result[b] == -1) result[b] = time;
for (auto n : get_neighbors(state, tc.max))
{
if (visited[n]) continue;
visited[n] = true;
queue.push({n, time + 1});
}
}
for (auto r : result) cout << r << " ";
cout << "\n";
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | #include <bits/stdc++.h> using namespace std; const size_t BOTTLES = 3; struct State { array<int, BOTTLES> bottles; }; struct TestCase { State max; State initial; }; TestCase read_test_case(); void solve_test_case(const TestCase&); int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); solve_test_case(read_test_case()); } istream& operator>>(istream& stream, State& s) { for (auto& b : s.bottles) stream >> b; return stream; } TestCase read_test_case() { TestCase tc; cin >> tc.max >> tc.initial; return tc; } bool operator<(const State& lhs, const State& rhs) { return lhs.bottles < rhs.bottles; } vector<State> get_neighbors(const State& s, const State& max) { vector<State> result; for (size_t from = 0; from < BOTTLES; from++) for (size_t to = 0; to < BOTTLES; to++) { auto amount = min(s.bottles[from], max.bottles[to] - s.bottles[to]); auto s2 = s; s2.bottles[from] -= amount; s2.bottles[to] += amount; result.push_back(s2); } return result; } void solve_test_case(const TestCase& tc) { map<State, bool> visited; queue<pair<State, size_t>> queue; visited[tc.initial] = true; queue.push({tc.initial, 0}); vector<int> result(tc.max.bottles[2] + 1, -1); while (!queue.empty()) { auto [state, time] = queue.front(); queue.pop(); for (auto b : state.bottles) if (result[b] == -1) result[b] = time; for (auto n : get_neighbors(state, tc.max)) { if (visited[n]) continue; visited[n] = true; queue.push({n, time + 1}); } } for (auto r : result) cout << r << " "; cout << "\n"; } |
English