Compilare: main.cpp: In function 'int main()': main.cpp:36:13: warning: unused variable 'l' [-Wunused-variable] 36 | int x,y,l; | ^ main.cpp: In function 'bool cmp(std::pair<int, std::pair<int, int> >, std::pair<int, std::pair<int, int> >)': main.cpp:33:1: warning: control reaches end of non-void function [-Wreturn-type] 33 | } | ^ main.cpp: In function 'int main()': main.cpp:66:9: warning: 'poz' may be used uninitialized [-Wmaybe-uninitialized] 66 | drum(poz); | ~~~~^~~~~ main.cpp:57:14: note: 'poz' was declared here 57 | int mx=0,poz; | ^~~