Compilare: main.cpp: In function 'void bk(int)': main.cpp:48:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<c.size()-1; i++) ~^~~~~~~~~~~ main.cpp:52:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(continuare(p)==1) ^ main.cpp: In function 'int main()': main.cpp:94:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<c.size(); i++) ~^~~~~~~~~ main.cpp:70:16: warning: unused variable 'nod' [-Wunused-variable] int i,j,o, nod, cst; ^~~ main.cpp:70:21: warning: unused variable 'cst' [-Wunused-variable] int i,j,o, nod, cst; ^~~