printer.cpp: In function 'void dfs(int, int)':
printer.cpp:20:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
20 | for(int i = 0; i < ar[cur].size(); i++){
| ~~^~~~~~~~~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:43:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
43 | for(int j = 0; j < palavras[i].size(); j++){
| ~~^~~~~~~~~~~~~~~~~~~~
printer.cpp:55:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wformat=]
55 | printf("%d\n", ans.size());
| ~^ ~~~~~~~~~~
| | |
| int std::vector<char>::size_type {aka long unsigned int}
| %ld
printer.cpp:56:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
56 | for(int i = 0; i < ans.size(); i++)
| ~~^~~~~~~~~~~~
printer.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
34 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~