Compilare: user.cpp: In function ‘BIG operator+(BIG, const BIG&)’: user.cpp:43:21: warning: unused variable ‘mx’ [-Wunused-variable] int i, T, n, m, mx, mn; ^ user.cpp:43:25: warning: unused variable ‘mn’ [-Wunused-variable] int i, T, n, m, mx, mn; ^ user.cpp: In function ‘int main()’: user.cpp:104:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aladdin2.in", "r", stdin); ^ user.cpp:105:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("aladdin2.out", "w", stdout); ^ user.cpp:107:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^