Compilare: user.cpp: In function ‘void readFile()’: user.cpp:42:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ user.cpp:48:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%lld%lld", &a, &b); ^ user.cpp:52:59: warning: array subscript is below array bounds [-Warray-bounds] dc[j] = mna(dp[j] + b * putere(2, j), dp[j - 1] + a * putere(2, j - 1)); ^