Compilare: main.cpp: In function 'int read_int(FILE*, int*)': main.cpp:34:1: warning: no return statement in function returning non-void [-Wreturn-type] 34 | } | ^ main.cpp: In function 'bool grad(int, int)': main.cpp:56:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 56 | if( hashes[v[0]].size() <= g ) | ~~~~~~~~~~~~~~~~~~~~^~~~ main.cpp:61:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 61 | if( hashes[v[i]].size() <= g || hashes[v[i - 1]][g] != hashes[v[i]][g] ) | ~~~~~~~~~~~~~~~~~~~~^~~~