Compiler output
prog.cpp: In function 'bool ammic(std::string)':
prog.cpp:7:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < x.size(); ++i) {
^
prog.cpp: In function 'bool amcifra(std::string)':
prog.cpp:15:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < x.size(); ++i) {
^
prog.cpp: In function 'bool amlitera(std::string)':
prog.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < x.size(); ++i) {
^
