Compilare: main.cpp: In function 'int main()': main.cpp:54:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int dircnt = 0; dircnt<dirs.size(); dircnt++) { | ~~~~~~^~~~~~~~~~~~ main.cpp:60:47: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 60 | if (mat[nw.y][nw.x] == 0 || nw.p1 && mat[nw.y][nw.x] <= k1 || nw.p2 && mat[nw.y][nw.x] >= k2) { | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:60:81: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 60 | if (mat[nw.y][nw.x] == 0 || nw.p1 && mat[nw.y][nw.x] <= k1 || nw.p2 && mat[nw.y][nw.x] >= k2) { | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~