Question: C++ 20 and 21 Explain when when to use a static variable name. Based on the following declaration: int *grade; Write a statement that allocates

C++

C++ 20 and 21 Explain when when to use a static variable

name. Based on the following declaration: int *grade; Write a statement that

allocates the grade as an array at run time to store 10

whole numbers. Use the structure City in the previous question and if

there are five records of information written to a binary file, myfile.dat.

Come up with statements that will open the file for reading as

a binary file and search for the last record , read the

20 and 21

Explain when when to use a static variable name. Based on the following declaration: int *grade; Write a statement that allocates the grade as an array at run time to store 10 whole numbers. Use the structure City in the previous question and if there are five records of information written to a binary file, myfile.dat. Come up with statements that will open the file for reading as a binary file and search for the last record , read the record, and display the city name and its population to the screen. Question 18 3 pts Write a structure ,City for a record that contains a city name of 20 characters and its population. The structure is used for a binary file processing. Question 19 4 pts Use the structure City in the previous question and if there are five records of information written to a binary file, myfile.dat. Come up with statements that will open the file for reading as a binary file and search for the last record , read the record, and display the city name and its population to the screen. Question 20 2 pts Explain when when to use a static variable name. Question 21 2 pts Based on the following declaration: int *grade; Write a statement that allocates the grade as an array at run time to store 10 whole numbers

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