Compilare: main.cpp: In function 'int main()': main.cpp:87:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<linii[q].size(); i++) ~^~~~~~~~~~~~~~~~ main.cpp:97:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int q=0; q<muchii.size(); q++) ~^~~~~~~~~~~~~~ main.cpp:123:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(a<=linii[i].size()&&a) ~^~~~~~~~~~~~~~~~~