Compilare: main.cpp: In function 'void color_bfs2(uint64_t, uint64_t, uint64_t)': main.cpp:22:14: warning: unused variable 'ma' [-Wunused-variable] 22 | uint64_t ma = 0; | ^~ main.cpp: In function 'void read()': main.cpp:48:23: warning: comparison of integer expressions of different signedness: 'int' and 'uint64_t' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int i = 1; i <= m; ++i) | ~~^~~~ main.cpp: In function 'void solve()': main.cpp:66:22: warning: comparison of integer expressions of different signedness: 'int' and 'uint64_t' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(int i = 1; i <= n; ++i){ | ~~^~~~ main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'uint64_t' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int i = 1; i <= n; ++i){ | ~~^~~~ main.cpp:80:22: warning: comparison of integer expressions of different signedness: 'int' and 'uint64_t' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(int i = 1; i <= n; ++i){ | ~~^~~~