#include <bits/stdc++.h> #include <unordered_map> using namespace std; #define LL long long #define BIGMOD 1000000007LL #define DBG(X) #define DBG_BIG(X) int G_CAPACITY[3]; struct State { int level[3]; State(int L[3]) { level[0] = L[0]; level[1] = L[1]; level[2] = L[2]; } State przelej(int from, int to) { State res = *this; int free = G_CAPACITY[to] - level[to]; int possible = min(res.level[from], free); res.level[from] -= possible; res.level[to] += possible; return res; } vector<State> next() { vector<State> res; for (int i=0; i < 3; i++) { for (int j=0; j < 3; j++) { if (i==j) continue; res.push_back(przelej(i,j)); } } return res; } void print() { printf("(%d,%d,%d)\n",level[0], level[1], level[2]); } struct HashFunction { size_t operator()(const State& s) const { size_t hash = 0; for (int i=0; i < 3; i++) { hash += s.level[i]; hash *= 100333; } return hash; } }; bool operator==(const State &other) const { for (int i=0; i < 3; i++) { if (level[i] != other.level[i]) return false; } return true; } }; vector<int> solve(int capacity[3], int level[3]) { vector<int> answer(capacity[2]+1, -1); for (int i=0; i < 3; i++) { G_CAPACITY[i] = capacity[i]; } queue<pair<State, int> > Q; Q.push(make_pair(State(level), 0)); unordered_map<State, bool, State::HashFunction> seen; while (!Q.empty()) { pair<State, int> elem = Q.front(); Q.pop(); State s = elem.first; int steps = elem.second; DBG(s.print()); if (seen.find(s) != seen.end()) continue; seen[s] = true; DBG(printf("seen[s]=%d\n", seen[s])); for (int i=0; i < 3; i++) { if (answer[s.level[i]] == -1) { answer[s.level[i]] = steps; } } vector<State> nextStates = s.next(); for (State &ns : nextStates) { if (seen.find(ns) == seen.end()) { Q.push(make_pair(ns, steps+1)); } } } return answer; } int main() { int A,B,C,a,b,c; scanf("%d%d%d", &A,&B,&C); scanf("%d%d%d", &a,&b,&c); int capacity[3] = {A,B,C}; int level[3] = {a,b,c}; vector<int> answer = solve(capacity, level); for (int i=0; i < answer.size(); i++) { printf("%d ", answer[i]); } printf("\n"); return 0; }
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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | #include <bits/stdc++.h> #include <unordered_map> using namespace std; #define LL long long #define BIGMOD 1000000007LL #define DBG(X) #define DBG_BIG(X) int G_CAPACITY[3]; struct State { int level[3]; State(int L[3]) { level[0] = L[0]; level[1] = L[1]; level[2] = L[2]; } State przelej(int from, int to) { State res = *this; int free = G_CAPACITY[to] - level[to]; int possible = min(res.level[from], free); res.level[from] -= possible; res.level[to] += possible; return res; } vector<State> next() { vector<State> res; for (int i=0; i < 3; i++) { for (int j=0; j < 3; j++) { if (i==j) continue; res.push_back(przelej(i,j)); } } return res; } void print() { printf("(%d,%d,%d)\n",level[0], level[1], level[2]); } struct HashFunction { size_t operator()(const State& s) const { size_t hash = 0; for (int i=0; i < 3; i++) { hash += s.level[i]; hash *= 100333; } return hash; } }; bool operator==(const State &other) const { for (int i=0; i < 3; i++) { if (level[i] != other.level[i]) return false; } return true; } }; vector<int> solve(int capacity[3], int level[3]) { vector<int> answer(capacity[2]+1, -1); for (int i=0; i < 3; i++) { G_CAPACITY[i] = capacity[i]; } queue<pair<State, int> > Q; Q.push(make_pair(State(level), 0)); unordered_map<State, bool, State::HashFunction> seen; while (!Q.empty()) { pair<State, int> elem = Q.front(); Q.pop(); State s = elem.first; int steps = elem.second; DBG(s.print()); if (seen.find(s) != seen.end()) continue; seen[s] = true; DBG(printf("seen[s]=%d\n", seen[s])); for (int i=0; i < 3; i++) { if (answer[s.level[i]] == -1) { answer[s.level[i]] = steps; } } vector<State> nextStates = s.next(); for (State &ns : nextStates) { if (seen.find(ns) == seen.end()) { Q.push(make_pair(ns, steps+1)); } } } return answer; } int main() { int A,B,C,a,b,c; scanf("%d%d%d", &A,&B,&C); scanf("%d%d%d", &a,&b,&c); int capacity[3] = {A,B,C}; int level[3] = {a,b,c}; vector<int> answer = solve(capacity, level); for (int i=0; i < answer.size(); i++) { printf("%d ", answer[i]); } printf("\n"); return 0; } |