Compilare: main.cpp: In function 'int main()': main.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ans.size();i++) ~^~~~~~~~~~~ main.cpp: In function 'void total()': main.cpp:37:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(idx<sir.length() && sir[idx]==',') ~~~^~~~~~~~~~~~~ main.cpp: In function 'void folderSiFisier()': main.cpp:50:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(idx<sir.length() && ((sir[idx]>='a' && sir[idx]<='z') || (sir[idx]>='0' && sir[idx]<='9'))) ~~~^~~~~~~~~~~~~ main.cpp:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(idx<sir.length() && ((sir[idx]>='A' && sir[idx]<='B') || (sir[idx]>='0' && sir[idx]<='9'))) ~~~^~~~~~~~~~~~~