solusi http://tokilearning.org/problem/221 Tetangga Bidang Persegi

tetangga4.py

tetangga = {
    "1": {"R":"2","D":"3"},
    "2": {"L":"1","D":"4"},
    "3": {"R":"4","U":"1"},
    "4": {"L":"3","U":"2"}
}

def getND(kode,arah):
    if arah in tetangga[kode[-1]]:
        return kode[:-1]+tetangga[kode[-1]][arah]
    else:
        return getND(kode[:-1], arah)
        

if __name__=='__main__':
    k = '413'
    print getND(k,'L')
    print getND(k,'U')
    print getND(k,'R')
    print getND(k,'D')