Compilare: main.cpp: In function 'int main()': main.cpp:15:12: warning: unused variable 'a' [-Wunused-variable] 15 | int n, a, b; | ^ main.cpp:15:15: warning: unused variable 'b' [-Wunused-variable] 15 | int n, a, b; | ^ In function 'double dist(int, int)', inlined from 'int main()' at main.cpp:35:38: main.cpp:11:56: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 11 | return sqrt((vx[a]-vx[b])*(vx[a]-vx[b])+(vy[a]-vy[b])*(vy[a]-vy[b])); | ~~~~^ main.cpp: In function 'int main()': main.cpp:22:9: note: 'poz' was declared here 22 | int poz; | ^~~