printer.cpp: In function 'int main()':
printer.cpp:3:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
3 | #define rep(i,n) for(int i=0; i<(n); i++)
| ^
printer.cpp:28:9: note: in expansion of macro 'rep'
28 | rep(j,s[i].size()){
| ^~~
printer.cpp:3:32: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
3 | #define rep(i,n) for(int i=0; i<(n); i++)
| ^
printer.cpp:48:9: note: in expansion of macro 'rep'
48 | rep(j,min(s[i].size(),s[i+1].size())){
| ^~~
printer.cpp:3:32: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare]
3 | #define rep(i,n) for(int i=0; i<(n); i++)
| ^
printer.cpp:56:9: note: in expansion of macro 'rep'
56 | rep(j,s[i].size()-ng){
| ^~~
printer.cpp:4:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
4 | #define rep2(i,a,b) for(int i=a; i<(b); i++)
| ^
printer.cpp:59:9: note: in expansion of macro 'rep2'
59 | rep2(j,ng,s[i+1].size()){
| ^~~~