Berjalanlah dengan sepuluh menit JS
function isValidWalk(walk) {
var dx = 0
var dy = 0
var dt = walk.length
for (var i = 0; i < walk.length; i++) {
switch (walk[i]) {
case 'n': dy--; break
case 's': dy++; break
case 'w': dx--; break
case 'e': dx++; break
}
}
return dt === 10 && dx === 0 && dy === 0
}
Evil Elephant