Compilare: user.cpp: In function ‘int main()’: user.cpp:80:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int ii = 0;ii < q.size();ii++) { ^ user.cpp:86:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0;j < q.size();j++) { ^ user.cpp:47:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.in", "r", stdin); ^ user.cpp:48:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.out", "w", stdout); ^ user.cpp:101:56: warning: ‘bstc’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bsx + 1 << " " << bsy + 1 << "\n" << (char)bstc; ^ user.cpp:101:37: warning: ‘bsy’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bsx + 1 << " " << bsy + 1 << "\n" << (char)bstc; ^ user.cpp:101:19: warning: ‘bsx’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bsx + 1 << " " << bsy + 1 << "\n" << (char)bstc; ^