69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#include <cstdio>
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#define size 24
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using namespace std;
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const int opt[][size] =
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{
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{ 2, 1, 6, 3, 4, 5, 11, 7, 8, 9, 10, 15, 12, 13, 14, 20, 16, 17, 18, 19, 22, 21, 0, 23 },
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{ 0, 3, 2, 8, 4, 5, 6, 7, 12, 9, 10, 11, 17, 13, 14, 15, 16, 21, 18, 19, 20, 23, 22, 1 },
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{ 0, 1, 2, 3, 10, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 },
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23 },
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{ 0, 23, 2, 1, 4, 5, 6, 7, 3, 9, 10, 11, 8, 13, 14, 15, 16, 12, 18, 19, 20, 17, 22, 21 },
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{ 22, 1, 0, 3, 4, 5, 2, 7, 8, 9, 10, 6, 12, 13, 14, 11, 16, 17, 18, 19, 15, 21, 20, 23 },
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 13, 20, 21, 22, 23 },
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{ 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 4, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 },
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{ 6, 7, 8, 11, 12, 15, 16, 17 },
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};
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const char optlist[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H' };
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int sharp[size];
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char path[size];
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bool judge(int node[]){
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for (int i = 0; i < 8; i++)
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if (node[opt[8][0]] != node[opt[8][i]])
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return false;
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return true;
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}
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int get_h(int node[]){
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int cnt[4] = { 0 };
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for (int i = 0; i < 8; i++)
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cnt[node[opt[8][i]]]++;
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int max = 0;
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for (int i = 1; i <= 3; i++)
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max < cnt[i] ? max = cnt[i] : 0;
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return 8 - max;
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}
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bool ida(int curr[], int expr, int depth, char path[]){
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if (expr == depth) {
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if (judge(curr)) {
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path[expr] = '\0';
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printf("%s\n%d\n", path, curr[6]);
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return true;
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}
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else
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return false;
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}
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if (get_h(curr) + expr > depth) return false;
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int next[size];
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for (int i = 0; i < 8; i++){
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for (int j = 0; j < size; j++) next[j] = curr[opt[i][j]];
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path[expr] = optlist[i];
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if (ida(next, expr + 1, depth, path)) return true;
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}
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return false;
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}
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int main(){
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while (scanf("%d", sharp), sharp[0]){
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for (int i = 1; i < size; i++){
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scanf("%d", sharp + i);
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}
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if (judge(sharp)){
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printf("No moves needed\n%d\n", sharp[6]);
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continue;
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}
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for (int i = get_h(sharp);; i++){
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if (ida(sharp, 0, i, path))
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break;
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}
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}
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return 0;
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}
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