Compilare: main.cpp: In function 'void bk(int)': main.cpp:47:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1; i<c.size()-1; i++) ~^~~~~~~~~~~ main.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1; j<c.size(); j++) ~^~~~~~~~~ main.cpp:51:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(continuare(p)==1) ^ main.cpp: In function 'int main()': main.cpp:68:16: warning: unused variable 'nod' [-Wunused-variable] int i,j,k, nod, cst; ^~~ main.cpp:68:21: warning: unused variable 'cst' [-Wunused-variable] int i,j,k, nod, cst; ^~~