Compilare: user.cpp: In function ‘void citire()’: user.cpp:37:12: warning: unused variable ‘fin’ [-Wunused-variable] FILE * fin = freopen(IN, "r", stdin); ^ user.cpp: In function ‘int c_minim(int, int)’: user.cpp:90:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<G[x].size();++i) ^ user.cpp: In function ‘void afisare()’: user.cpp:102:12: warning: unused variable ‘fout’ [-Wunused-variable] FILE * fout = freopen(OUT, "w", stdout); ^ user.cpp: In function ‘void Prim(int)’: user.cpp:90:25: warning: ‘selectat’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=0;i<G[x].size();++i) ^ user.cpp:52:22: note: ‘selectat’ was declared here int i, j, minim, selectat, val; ^