Compilare: main.cpp: In function 'void solve()': main.cpp:81:35: warning: narrowing conversion of 'i' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing] 81 | pq.push({v[i][j], i, j}); | ^ main.cpp:81:38: warning: narrowing conversion of 'j' from 'll' {aka 'long long int'} to 'int' [-Wnarrowing] 81 | pq.push({v[i][j], i, j}); | ^ main.cpp:27:11: warning: unused variable 'first' [-Wunused-variable] 27 | #define x first | ^~~~~ main.cpp:74:14: note: in expansion of macro 'x' 74 | ll i, j, x, y; | ^ main.cpp:28:11: warning: unused variable 'second' [-Wunused-variable] 28 | #define y second | ^~~~~~ main.cpp:74:17: note: in expansion of macro 'y' 74 | ll i, j, x, y; | ^