Compilare: main.cpp: In function 'int main()': main.cpp:29:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(st.size()+n-poz+1>m) ~~~~~~~~~~~~~~~~~^~ main.cpp:31:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(st.size()+n-poz+1>m and st.top()<val) ~~~~~~~~~~~~~~~~~^~