Compilare: main.cpp: In function 'void citire()': main.cpp:39:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (st = 0; st < aux.size(); st++) ~~~^~~~~~~~~~~~ main.cpp:31:13: warning: unused variable 'cnt' [-Wunused-variable] int cnt = 0; ^~~ main.cpp: In function 'int main()': main.cpp:109:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ans.size() != m + 1) { ~~~~~~~~~~~^~~~~~~~ main.cpp:118:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i++; i < ans.size(); i++) ~~^~~~~~~~~~~~ main.cpp:130:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (ans.size() != m ) { ~~~~~~~~~~~^~~~