Compilare: In function 'double distance(punct&, punct&)', inlined from 'int main()' at main.cpp:54:44: main.cpp:19:57: warning: 'next' may be used uninitialized [-Wmaybe-uninitialized] 19 | return sqrt(((b.x - a.x) * (b.x - a.x)) + ((b.y - a.y) * (b.y - a.y))); | ~~^ main.cpp: In function 'int main()': main.cpp:39:9: note: 'next' was declared here 39 | int next; | ^~~~