例如:
row1 [ a y e m a ]
row2 [ l i t a p ]
row3 [ i y n a t ]
现在单词'may'成为可能,因为'm'在第1行,'a'在第2行,'y'在第'3'行
但是,由于i和t具有相同的行,所以不可能使用'tin'。
注意:输入字符不必按行顺序。 tin也可以像输入一样为int。假设字符数与矩阵中的行数相同。
简化版本: 假设输入单词中没有字符重复(例如:五月,锡) p>
复杂版本: 字符可以重复:(例如:tat)
答案 0 :(得分:0)
伪代码中的算法为:
row1 [ a y e m a ]
row2 [ l i t a p ]
row3 [ i y n a t ]
key = 'may'
x = 1
while (x < N) do
if (key[x] not in rowx) then
return 'Not found'
endif else then
x = x + 1
endelse
done
return 'Found'
答案 1 :(得分:0)
// row1 [ a y e m a ]
// row2 [ l i t a p ]
// row3 [ i y n a t ]
//i would try to remap your data to something like
var data = new List<char>[255];
for(var i in in rows){
for(for j in rows[i]){
var ch =rows[i][j]// a,b,c,d
if(data[ch]==null){
data[ch] = new List<int>()
}
data[ch].add(i); // fill in row numbers here for every character
}
}
// you will have an array were you can find any character in constant time O(1)
[a] = [row1, row2,row3, row1];
[b] = null;
[m] = [row1]
[y] = [row1,row3]
[t] = row3
[i] = row2
[n] = row3
//after you can try to find all rownumbers and check for uniquiness
var hs = new HashSet<int>();
hs.addAll(data[m]);
hs.addAll(data[a]);
hs.addAll(data[y]);
//in C# hs will contain only unique values
hs = [row1, row2,row3]
return hs.length>="may".length;
//instead of hashset we can use groupby for cases like tat, taa etc.