csm exam questions

continuous. If the $x _0\not\in\bbq$, then to $\forall\ \ve>0$, to meet the $1/n\geq \ve$ of the $N $ only a limited number, while in $ ([x_0],[x_0]+1) $ can form into $M/n$\ ($M \in\bbz,\ 1/ N\geq \ve$) has only a finite number of rational numbers. Take $\delta>0$, so that the $U (X_0,\delta) $ does not contain these rational numbers, then $$\bex x\in U (X_0,\delta) \ra |f (x)-F (x_0) |8. Prove that the continuous function $f (x) =\sin 1/x$ in $ (0,1) $ is not consistent continuous.Proof: Take

gives a rational number in the form of "A1/b1 a2/b2" in a row of two fractions, where the numerator and denominator are all positive integers within the range of int types.Output format:The relationship of two rational numbers is output in a row according to the format "A1/B1-a2/b2". where ">" means "Greater than", "Notice that there is a space before and after the relationship character.Input Sample:1/2 3/4Sample output:time limit: 500ms memory limit: 32000kb1231NetEase Cloud Classroom _c Lang

":@" -"}; Nsdictionary*[email protected]{@"name":@"Wang Ming",@" Age":@" A"}; Nsdictionary*[email protected]{@"name":@"Lisiek",@" Age":@" -"}; Nsmutablearray*arr=[[Nsmutablearray Alloc]initwithobjects:dic1,dic2,dic3,dic4,nil]; Nssortdescriptor*sorts=[[nssortdescriptor Alloc]initwithkey:@" Age"Ascending:yes]; [Arr Sortusingdescriptors:[nsarray arraywithobjects:sorts, Nil]]; NSLog (@"The second question--(1)"); NSLog (@"sort after-(ascending)"); for(Nsdictionary *dicincharr) {NSLog (@"%@ %

1 /**2 * The 1th question please store the following data into a dictionary, and the dictionary content as a string output, output: "xxx, age xxx, professional xxx" (replace XXX with the corresponding data). 3 */4 5NSString *name =@"Wang Chongyang";6Nsinteger age = About;7NSString *job =@"Tao Long";8 9 TenNsdictionary *[email protected]{@"name": Name, One @" Age": @ (age), A @"Job": Job}; -Nsmu