Referência para 227 (Luiza)

#include <stdio.h>
#include <string.h>
#include <ctype.h>

char grid[10][10];
char move;
bool ill;
int ei, ej;
int _42=1;

bool execMove(int di, int dj) {
    if (ill) return true;
    if (ei+di<0 || ei+di>=5) return true;
    if (ej+dj<0 || ej+dj>=5) return true;

    grid[ei][ej]=grid[ei+di][ej+dj];
    grid[ei+di][ej+dj]=' ';
    ei+=di, ej+=dj;

    return false;
}

void getLine(char* str) {
    char tmp;

    scanf("%c", &tmp);
    while (tmp=='\n') scanf("%c", &tmp);
    str[0]=tmp;

    gets(&str[1]);
}

int main() {
    while (1) {
        getLine(grid[0]);
        if (!strcmp(grid[0],"Z")) break;
        if (_42!=1) printf("\n");

        for (int i=1; i<5; i++)
            getLine(grid[i]);

        for (int i=0; i<5; i++)
            for (int j=0; j<5; j++)
                if (grid[i][j]==' ')
                    ei=i, ej=j;
        ill=false;
        scanf(" %c", &move);

        while (move!='0') {
            switch (move) {
                case 'A':
                    ill=execMove(-1,0);
                    break;
                case 'R':
                    ill=execMove(0,1);
                    break;
                case 'L':
                    ill=execMove(0,-1);
                    break;
                case 'B':
                    ill=execMove(1,0);
                    break;
                default:
                    ill=true;
                    break;
            }

            scanf(" %c", &move);
        }

        printf("Puzzle #%d:\n", _42++);
        if (ill) printf("This puzzle has no final configuration.\n");
        else {
            for (int i=0; i<5; i++) {
                printf("%c", grid[i][0]);

                for (int j=1; j<5; j++)
                    printf(" %c", grid[i][j]);
                printf("\n");
            }
        }
    }

    return 0;
}