View Compilation Error

0_0_36697285_31988.cpp: In function 'int main()':
0_0_36697285_31988.cpp:16:34: error: cannot pass objects of non-trivially-copyable type 'std::string {aka class std::basic_string<char>}' through '...'
         scanf("%s%s", str, target);
                                  ^
0_0_36697285_31988.cpp:16:34: error: cannot pass objects of non-trivially-copyable type 'std::string {aka class std::basic_string<char>}' through '...'