Write a function to convert a decimal number to a binary number.
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C++
is my answers correct ?
- Write a function to convert a decimal number to a binary number.
Answer:
#include <iostream>
#include <string>
using namespace std;
string decToBin(int dec) {
string bin = "";
while (dec > 0) {
bin = to_string(dec % 2) + bin;
dec /= 2;
}
return bin;
}
int main() {
cout << decToBin(10) << endl;
return 0;
}
- Write a function to calculate s =1!+2!+3!+....+10!
Answer:
#include <iostream>
using namespace std;
int findFactSum(int n)
{
int f = 1, Sum = 0;
for (int i = 1; i <= n; i++) {
f = f * i;
Sum += f;
}
return Sum;
}
int main()
{
int n = 10;
cout << findFactSum(n);
return 0;
}
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- Write a function that counts and returns the number of vowels in the string. (For the purposes of this exercise, we are talking about the standard 5 vowels -- A, E, I, O, U). Write a function that counts and returns the number of consonants in the string. Write a function that converts the string to all lowercase. Write a function that converts the string to all uppercase. Write the following functions. Each of these functions should have a single parameter -- accepting a c-style string as an argument. The function should only do what is specified (note that none of these functions do any output to the screen). Your functions should use const in the prototype wherever it is appropriate: Write the main function that offers a menu and allows the user to test the functions you have implemented. Program C++, must use c- styleQ3: Write a complete C++ program that contains the integer functions (main, funx and funy). The main function declares an integer (k), which is assigned a value using cin. Then print funx(k), where funx(n)=2*funy(n-1) if n >1 and funx(n)=1 if n1 and funy(n)=1 if nYou must answer the Problem in C++. (Anagrams) Write a function that checks whether two words are anagrams. Two words are anagrams if they contain the same letters in any order. For example, “silent” and “listen” are anagrams. The header of the function is as follows: bool isAnagram(const string& s1, const string& s2) Write a test program that prompts the user to enter two strings and checks whether they are anagrams. Sample Run 1 Enter a string s1: silent Enter a string s2: listen silent and listen are anagrams Sample Run 2 Enter a string s1: split Enter a string s2: lisp split and lisp are not anagrams
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- Solve the problem in C++ (Binary to decimal) Write a function that returns a decimal number from a binary string. The function header is as follows: int bin2Dec(const string& binaryString) For example, binaryString 10001 is 17 (1*2^4+0*2^3+0*2^2+0*2+1=17 ). So, bin2Dec("10001") returns 17. Write a test program that prompts the user to enter a binary number as a string and displays its decimal equivalent value.Write a C function countDigits() that takes a string as parameter, finds and returns the number of numeric characters ('0', '1', ... '9') in the string. Prototype: int countDigits(char str[]);Write a C++ function (along with the helper functions) that deletes all occurrences of a word from a given string. The code should follow the exact function declaration given: void deleteWords(char*inputString, char*word, char*destString);
