Compilare: main.cpp: In function 'int main()': main.cpp:43:24: warning: loop variable 'vecin' creates a copy from type 'const std::pair<int, int>' [-Wrange-loop-construct] 43 | for(const auto vecin:v[bm]){ | ^~~~~ main.cpp:43:24: note: use reference type to prevent copying 43 | for(const auto vecin:v[bm]){ | ^~~~~ | & main.cpp:23:12: warning: unused variable 'e' [-Wunused-variable] 23 | int i, e, s, nr, cont=0, a, b, c, am, bm, vec; | ^ main.cpp:23:15: warning: unused variable 's' [-Wunused-variable] 23 | int i, e, s, nr, cont=0, a, b, c, am, bm, vec; | ^ main.cpp:23:18: warning: unused variable 'nr' [-Wunused-variable] 23 | int i, e, s, nr, cont=0, a, b, c, am, bm, vec; | ^~ main.cpp:23:22: warning: unused variable 'cont' [-Wunused-variable] 23 | int i, e, s, nr, cont=0, a, b, c, am, bm, vec; | ^~~~ main.cpp:23:47: warning: variable 'vec' set but not used [-Wunused-but-set-variable] 23 | int i, e, s, nr, cont=0, a, b, c, am, bm, vec; | ^~~