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-rw-r--r--other/max_product_word_len.cpp31
1 files changed, 31 insertions, 0 deletions
diff --git a/other/max_product_word_len.cpp b/other/max_product_word_len.cpp
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--- /dev/null
+++ b/other/max_product_word_len.cpp
@@ -0,0 +1,31 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ int maxProduct(vector<string> &words) {
+ int n = words.size(), ans = 0;
+ vector<bitset<26>> chars(n);
+ for (int i = 0; i < n; i++) {
+ for (auto &ch : words[i])
+ chars[i][ch - 'a'] = 1;
+ for (int j = 0; j < i; j++)
+ if (!helper(chars[i], chars[j]))
+ ans = max(ans, words[i].size() * words[j].size());
+ }
+ return ans;
+ }
+
+private:
+ bool helper(bitset<26> &a, bitset<26> &b) {
+ for (int i = 0; i < 26; i++)
+ if (a[i] && b[i])
+ return true;
+ return false;
+ }
+};
+
+int main() {
+ Solution obj;
+ vector<string> words = {"abcw", "baz", "foo", "bar", "xtfn", "abcdef"};
+ cout << obj.maxProduct(words);
+}