Delete Columns to Make Sorted
给一个数组, 里面是同样长度的string, 求这个string组成的grid是否对应的每列都是字典序的
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class Solution { public: int minDeletionSize(vector<string>& strs) { int n = strs.size(); int m = strs[0].length(); int res = 0; for(int i = 0; i < m; i++){ for(int j = 1; j < n; j++) { if(strs[j - 1][i] > strs[j][i]){ res++; break; } } } return res; } }; |