Compilare: main.cpp: In function 'int main()': main.cpp:48:15: warning: unused variable 'val' [-Wunused-variable] 48 | int n, m, val, idx(0) ; | ^~~ main.cpp:48:20: warning: unused variable 'idx' [-Wunused-variable] 48 | int n, m, val, idx(0) ; | ^~~ main.cpp:66:12: warning: 'minim' may be used uninitialized in this function [-Wmaybe-uninitialized] 66 | out << minim ; | ^~~~~