View Compilation Error

0_0_24822296_2806.cpp: In function 'int main()':
0_0_24822296_2806.cpp:54:39: error: 'len' was not declared in this scope
     while(std::cin.getline(word,20)&&(len= strlen(word))!=0)
                                       ^
0_0_24822296_2806.cpp:56:39: error: 'len' was not declared in this scope
     while(std::cin.getline(word,20)&&(len= strlen(word))!=0)
                                       ^