(C++ language)

(Replace strings) Write the following function that replaces the occurrence of a substring old_substring with a new substring new_substring in the string s. The function returns true if string s is changed, and otherwise, it returns false. bool replace_strings (string& s, const string& old_string, const string& new_string) Write a test program that prompts the user to enter three strings, i.e., s, old string, and new_string, and display the replaced string.

(Rounding Numbers) Function floor may be used to round a number to a specific decimal place. The statement y = floor(x * 10 + .5) / 10; rounds x to the tenths position (the first position to the right of the decimal point). The statement y = floor(x * 100 + .5) / 100; rounds x to the hundredths position (the second position to the right of the decimal point). Write a program that defines four functions to round a number x in various ways a) roundTolnteger(number) b) roundToTenths(number) c) roundToHundreths(number) d) roundToThousandths(number) For each value %3D read, your program should print the original value, the number rounded to the nearest integer, the number rounded to the nearest tenth, the number rounded to the nearest hun- dredth, and the number rounded to the nearest thousandth. IN C PROGRAMMING LANGUAGE PLEASE

( MindTap - Cenage )Example 5-6 implements the Number Guessing Game program. If the guessed number is not correct, the program outputs a message indicating whether the guess is low or high. Modify the program as follows: Suppose that the variables num and guess are as declared in Example 5-6 and diff is an int variable. Let diff = the absolute value of (num - guess). If diff is 0, then guess is correct and the program outputs a message indicating that the user guessed the correct number. Suppose diff is not 0. Then the program outputs the message as follows: If diff is greater than or equal to 50, the program outputs the message indicating that the guess is very high (if guess is greater than num) or very low (if guess is less than num). If diff is greater than or equal to 30 and less than 50, the program outputs the message indicating that the guess is high (if guess is greater than num) or low (if guess is less than num). If diff is greater than or equal to 15 and less than 30, the…

(Sort three integers) Write a program that prompts the user to enter THREE integers and display the integers in decreasing order. Prepare your problem analysis and algorithm (pseudocode or flowchart) to plan your solution.

(Guess the Number Modification) Modify the program of Exercise 5.32 to count the number of guesses the player makes. If the number is 10 or fewer, print Either you know the secret oryou got lucky! If the player guesses the number in 10 tries, then print Ahah! You know the secret!If the player makes more than 10 guesses, then print You should be able to do better! Why shouldit take no more than 10 guesses? Well, with each “good guess” the player should be able to eliminatehalf of the numbers. Now show why any number 1 to 1000 can be guessed in 10 or fewer tries.

(Average a Sequence of Integers) Write a program that calculates and prints the average ofseveral integers. Assume the last value read with scanf is the sentinel 9999. A typical input sequencemight be10 8 11 7 9 9999indicating that the average of all the values preceding 9999 is to be calculated

(Sum a Sequence of Integers) Write a program that sums a sequence of integers. Assume thatthe first integer read with scanf specifies the number of values remaining to be entered. Your program should read only one value each time scanf is executed. A typical input sequence might be5 100 200 300 400 500where the 5 indicates that the subsequent five values are to be summed.

(Use Python) Use the Design Recipe to write a function called which_day that consumes an int representing the number of days that have passed since Friday and returns name of the current day of the week. For example, if 2 days have passed, then ‘Sunday’ should be returned. Include a docstring! For example: Test Result 2 Sunday 4 Tuesday 6 Thursday 8 Saturday 10 Monday   Write 3 assert_equal statements to test your function.