combo.cpp: In function 'char beg(std::string)':
combo.cpp:26:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for(int i = 0; i< pos.size()/2; i++){
| ~^~~~~~~~~~~~~~
combo.cpp:35:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
35 | for(int i = pos.size()/2; i < pos.size(); i++){
| ~~^~~~~~~~~~~~
In file included from /usr/include/c++/10/cassert:44,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
from combo.cpp:2:
combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:61:27: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
61 | assert(known.size()+1 == N);
| ~~~~~~~~~~~~~~~^~~~
combo.cpp:65:27: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
65 | assert(known.size()+1 == N);
| ~~~~~~~~~~~~~~~^~~~
combo.cpp:68:25: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
68 | assert(known.size()+1 == N);
| ~~~~~~~~~~~~~~~^~~~