Python Basics Exercises Pat Water question (ii)

#学习笔记

#用以练习Python基础

#

Original title Link: https://www.patest.cn/contests/pat-b-practise/1011

1011. A+b and C (15)

^{for 3 integers a, b, and C within a given interval [-2 to 2 31], determine if A+B is greater than C.}

Input format:

Enter line 1th to give the positive integer t (<=10), which is the number of test cases. The T-group test cases are then given, one row for each group, and a, B, and C in order. The integers are separated by a space.

Output format:

For each set of test cases, output "case #X: True" in one row if a+b>c, otherwise the output is "case #X: false", where X is the number of the test cases (starting at 1).

Input Sample:

41 2 32 3 42147483647 0 21474836460-2147483648-2147483647

Sample output:

Case #1: falsecase #2: truecase #3: truecase #4: False

AC Code

N=int (input ()) for I in Range (n): L=str (Input ()). Split (") if (int (l[0)) +int (l[1]) >int (l[2)): Print (' case #%d:true '% (i+1)) else:print (' Case #%d:false '% (i+1))

#原题链接: https://www.patest.cn/contests/pat-b-practise/1061

1061. Judgment title (15)

Judging the judgment is very simple, the question asks you to write a simple procedure to help the teacher to judge the problem and statistics of the students score.

Input format:

The input gives two positive integers not exceeding 100 N and M in the first row, respectively, the number of students and the quantity of judgment questions. The second line gives a positive integer of M not more than 5, which is the full value of each question. The third line gives the correct answer to each question, 0 means "non" and 1 means "yes". Then n rows, each line gives a student's answer. The numbers are separated by spaces.

Output format:

Output each student's score in the order entered, with each score occupying one line.

Input Sample:

3 62 1 3 3 4 50 0 1 0 1 10 1 1 0 0 11 0 1 0 1 01 1 0 0 1 1

Sample output:

131112

AC Code

L=STR (Input ()). Split (') n=l[0];  M=L[1]T=0L1=STR (Input ()). Split (') L2=str (input ()). Split (") for I in range (int (N)): L=str (Input ()). Split (") for J In range (int (M)): if (L[j]==l2[j]): T=t+int (L1[j]) print (T) t=0

Original title Link: https://www.patest.cn/contests/pat-b-practise/1063

1063. Calculate spectral radius (20)

In mathematics, the "spectral radius" of a matrix refers to the upper bound of the modulus set of its eigenvalues. In other words, for a given n complex space eigenvalues {a_{1+b1i, ..., an+bni}, their modulus is the square sum of the real part and the imaginary part, and the "Spectral radius" is the maximum modulus.}

Now given the eigenvalues of some complex spaces, you should calculate and output the spectral radii of these eigenvalues.

Input format:

Enter the first line to give a positive integer n (<= 10000) is the number of input eigenvalues. Then n rows, each row gives the real and imaginary parts of 1 eigenvalues, separated by a space. Note: The title guarantees that both real and imaginary parts are integers with absolute values not exceeding 1000.

Output format:

The spectral radius is output in a row, rounding retains 2 digits after the decimal point.

Input Sample:

50 12 0-1) 03 30-3

Sample output:

4.24

Import mathn=int (input ()) Max1=-1for I in Range (N): l=list (str (input ()). Split (")) l=[float (i) for i in L] X=math . sqrt (Math.pow (l[0],2) +math.pow (l[1],2)) if x > Max1:max1=xprint ('%.2f '% max1)

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Python Basics Exercises Pat Water question (ii)