Compilare: user.cpp: In function ‘int main()’: user.cpp:95:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dist3.in", "r", stdin); ^ user.cpp:96:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dist3.out", "w", stdout); ^ user.cpp: In function ‘void Solve_brut()’: user.cpp:47:26: warning: ‘choose’ may be used uninitialized in this function [-Wmaybe-uninitialized] Taken[choose] = 1; ^ user.cpp: In function ‘var complete(var*, var)’: user.cpp:65:20: warning: ‘choose’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(Taken[choose] != 0) { ^