messy.cpp: In function 'void read(int, int, int)':
messy.cpp:73:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
73 | for(int i=0;i<digits[node].size();i++)
| ~^~~~~~~~~~~~~~~~~~~~
messy.cpp:78:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
78 | for(int i=0;i<digits[node].size();i++)
| ~^~~~~~~~~~~~~~~~~~~~