I need help with C++ the answers is not coming out to true or false and its printing out the numbers.

Code:

#include using namespace std;

bool isLetter(char letter); bool isNumber(char num); void capitalize(char& letter); void spaceToComma(string& list); bool first10Last(int data[], int size); bool equalFirstLast(int array[], int size); void printArray(int array[], int size); void arrayPlus2(int array[], int size); void squareArray(int array[], int size);

bool isLetter(char letter) { int c=letter;

if((c>=65 && c=97 && c

bool isNumber(char num) { int n=num;

if(n>=48 && n

void capitalize(char& letter) { int c=letter; if(c>=97 && c

void spaceToComma(string& list) { int c=0;

for( ; list[c]!='\0'; c++) { if(list[c]==' ') list[c]=','; }

}

bool first10Last(int data[], int size) { if(data[0]==10) return true; else if(data[size-1]==10) return true; else return false; }

bool equalFirstLast(int array[], int size) { if(size>=1 && array[0]==array[size-1]) return true; else return false; }

void printArray(int array[], int size) { cout

}

void arrayPlus2(int array[], int size) { for(int i=0; i

void squareArray(int array[], int size) { for(int i=0; i

int main() { int result; bool answer; string value;

cout

cout

cout

cout

cout

cout

cout

cout

cout

return 0;

}

Testing is Letter Should be true: 1 Should be true: 1 Should be false: 0 Testing is Number Should be false: 0 Should be true: 1 Testing capitalize Should print A: A Should print A: A Testing space ToComma Should be cats, hats,bats. cats, hats, bats Should be I, love, cookies. I, love, cookies ***Testing first 10Last Should print true: 1 Should print true: 1 Should print false: 0 Testing equalFirstLast Should be false: 0 Should be true: 1