Compilare: main.cpp: In function 'int main()': main.cpp:56:28: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 56 | if(v[i].size() <= m) | ~~~~~~~~~~~~^~~~ main.cpp:57:26: warning: division by zero [-Wdiv-by-zero] 57 | cout << 1/ 0; | ~^~~ main.cpp: In function 'int solve(int, int, int, int, int, int)': main.cpp:36:14: warning: control reaches end of non-void function [-Wreturn-type] 36 | solve(x1+1, y1+1, x2-1, y2-1, cnt, k); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~