Compilare: main.cpp: In function 'int bellman_ford()': main.cpp:15:23: warning: unused variable 'k' [-Wunused-variable] 15 | int i=1,modif=1,j,k; | ^ main.cpp: In function 'int main()': main.cpp:33:11: warning: unused variable 'j' [-Wunused-variable] 33 | int i,j,x,y,z; | ^ main.cpp:33:13: warning: unused variable 'x' [-Wunused-variable] 33 | int i,j,x,y,z; | ^ main.cpp:33:15: warning: unused variable 'y' [-Wunused-variable] 33 | int i,j,x,y,z; | ^ main.cpp:33:17: warning: unused variable 'z' [-Wunused-variable] 33 | int i,j,x,y,z; | ^