school/cpp/8.9.33-lab-even-odd-values-in-a-vector/main.cpp

/*
 * read list of ints
 * output whether list contains all even, all odd, or neither.
 * input begins with an int indicating the number of ints in the list
 *
 * input:
 * 5 2 4 6 8 10
 *
 * output:
 * all even
 *
 * input:
 * 5 1 -3 5 -7 9
 *
 * output:
 * all odd
 *
 * input:
 * 5 1 2 3 4 5
 *
 * output:
 * not even or odd
 *
 * Two functions
 *
 * bool IsVectorEven(vector<int> myVec)
 * bool IsVectorOdd(vector<int> myVec)
 */

#include <iostream>
#include <vector>
using namespace std;

/* Define your function here */
bool IsVectorEven(vector<int> myVec) {
  for (int i=0;i<myVec.size();i++){
    if (myVec.at(i) % 2 != 0){
      return false;
    }
  }
  return true;
}

bool IsVectorOdd(vector<int> myVec) {
  for (int i=0;i<myVec.size();i++){
    if (myVec.at(i) % 2 == 0){
      return false;
    }
  }
  return true;

}


int main() {
   /* Type your code here. */

  int length;
  int input;
  cin >> length;

  vector<int> listOfNums;
  
  for (int i=0;i<length;i++){
    cin >> input;
    listOfNums.push_back(input);
  }

  if (IsVectorEven(listOfNums)){
      cout << "all even" << endl;
    }
  else if (IsVectorOdd(listOfNums)){
      cout << "all odd" << endl;
    }
  else{
    cout << "not even or odd" << endl;
  }
      
   return 0;
}