Compilare: main.cpp: In function 'int main()': main.cpp:19:26: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 19 | for (size_t i = 0; i < n; i++) { | ~~^~~ main.cpp:20:30: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 20 | for (size_t j = 0; j < m; j++) { | ~~^~~ main.cpp:55:20: warning: unused variable 'dist' [-Wunused-variable] 55 | const auto dist = distance[row][col]; | ^~~~