Compilare: main.cpp: In function 'bool Bellman_Ford()': main.cpp:23:9: warning: unused variable 'nc' [-Wunused-variable] 23 | int nc,x,y,z; | ^~ main.cpp: In function 'int main()': main.cpp:55:11: warning: unused variable 'j' [-Wunused-variable] 55 | int i,j,inc,sf,nc,x1,x2,val; | ^ main.cpp:55:13: warning: unused variable 'inc' [-Wunused-variable] 55 | int i,j,inc,sf,nc,x1,x2,val; | ^~~ main.cpp:55:17: warning: unused variable 'sf' [-Wunused-variable] 55 | int i,j,inc,sf,nc,x1,x2,val; | ^~ main.cpp:55:20: warning: unused variable 'nc' [-Wunused-variable] 55 | int i,j,inc,sf,nc,x1,x2,val; | ^~