0_0_35539676_17813.cpp: In function 'int main()':
0_0_35539676_17813.cpp:46:40: error: cannot pass objects of non-trivially-copyable type 'std::string {aka class std::basic_string<char>}' through '...'
for(int i=1;i<=n;++i) scanf("%s", s),build(s);
^
0_0_35539676_17813.cpp:49:18: error: cannot pass objects of non-trivially-copyable type 'std::string {aka class std::basic_string<char>}' through '...'
scanf("%s", s);
^
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