Read a 3-character string from input into variable inputString. Declare a Boolean variable isValid and assign isValid with true if inputString only contains alphabetic characters. Otherwise, assign isValid with false. Ex: If the input is hgr, then isValid is assigned with true, so the output is: Valid string Ex: If the input is 3rx, then isValid is assigned with false, so the output is: Invalid string Note: Use getline(cin, inputString) to read the entire line from input into inputString. In C++ please.      #include #include #include using namespace std; int main() {    string inputString;        /* Your code goes here */    if (isValid) {       cout << "Valid string" << endl;    }    else {       cout << "Invalid string" << endl;    }    return 0; }

C++

Scilab answer only, no MatLab. Will give thumbs down for MatLab answer! immediate thumbs up for scilab solution.

7. Let the statements A, B be given by A: not(p or q), B: (not p) or q. Let T = true, F = false. If p = T and q = F, then O A = T, B = T O A = F, B = T O A = F, B = F O A= T, B = F

Read a 2-character string from input into variable userString. Declare a Boolean variable isValid and assign isValid with true if userString does not contain any uppercase letters. Otherwise, assign isValid with false. Ex: If the input is 86, then isValid is assigned with true, so the output is: Good string Ex: If the input is BQ, then isValid is assigned with false, so the output is: Bad string Note: Use getline(cin, userString) to read the entire line from input into userString. #include <iostream>#include <string>#include <cctype>using namespace std; int main() {   string userString;    /* Your code goes here */      if (isValid) {      cout << "Good string" << endl;   }   else {      cout << "Bad string" << endl;   }    return 0;}

In C++ Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the string. The output should include the input character and use the plural form, n's, if the number of times the characters appears is not exactly 1. Ex: If the input is: n Monday the output is: 1 n Ex: If the input is: z Today is Monday the output is: 0 z's Ex: If the input is: n It's a sunny day the output is: 2 n's Case matters. n is different than N. Ex: If the input is: n Nobody the output is: 0 n's The program must define and call the following function that takes the input string and character as parameters, and returns the number of times the input character appears in the input string.int CalcNumCharacters(string userString, char userChar)

C++ Read in a 2-character string from input into variable userCode. Declare a boolean variable containsLowercase and set containsLowercase to true if userCode contains a lowercase letter. Otherwise, set containsLowercase to false. Note: the tests will b Ex: If the input is z$, then containsLowercase is assigned with true, so the output is: Valid passcode Ex: If the input is CY, then containsLowercase is assigned with false, so the output is: Invalid passcode Note: Use getline(cin, userCode) to read the entire line from input into userCode.