Compilare: main.cpp: In function 'int main()': main.cpp:63:25: warning: loop variable 'neighbor' creates a copy from type 'const std::pair<int, int>' [-Wrange-loop-construct] 63 | for (const auto neighbor : neighbors) { | ^~~~~~~~ main.cpp:63:25: note: use reference type to prevent copying 63 | for (const auto neighbor : neighbors) { | ^~~~~~~~ | & main.cpp:78:25: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 78 | for(size_t i = 0; i < numRows; i++){ | ~~^~~~~~~~~ main.cpp:79:29: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 79 | for(size_t j = 0; j < numCols; j++){ | ~~^~~~~~~~~