Compilare: user.cpp: In function ‘int exista_muchie_c(int)’: user.cpp:33:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[x].size(); i++) ^ user.cpp: In function ‘int exista_muchie_v(int)’: user.cpp:41:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<v[x].size(); i++) ^ user.cpp: In function ‘int inchide_ciclu(int)’: user.cpp:50:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i=0; i<c.size()-2; i++ ) ^ user.cpp:51:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( j=0; j<v[x].size(); j++ ) ^ user.cpp: In function ‘void prelucrare(int, int)’: user.cpp:106:11: warning: unused variable ‘ok’ [-Wunused-variable] int i,ok=0; ^ user.cpp: In function ‘void biconex(int)’: user.cpp:137:15: warning: unused variable ‘j’ [-Wunused-variable] int k=0,i,j,initial=0; ^ user.cpp: In function ‘int main()’: user.cpp:188:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<comp[i].size(); j++) ^ user.cpp: In function ‘int calc_nr_comp()’: user.cpp:62:1: warning: control reaches end of non-void function [-Wreturn-type] } ^