Compilare: main.cpp: In function 'void BellmanFord(int)': main.cpp:29:16: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else] 29 | if(!viz[x.first]) | ^ main.cpp: In function 'int main()': main.cpp:47:25: warning: unused variable 'mij' [-Wunused-variable] 47 | int st=1,dr=costmax,mij; | ^~~ main.cpp:56:17: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] 56 | fout<<1.0*p/100; | ^~~