Explanation of Solution
Program code:
//include the required header files
#include<iostream>
#include<
//use std namespace
using namespace std;
//define main() function
int main()
{
//create vector a
vector<int> a;
//declare required integer variables
int n;
int inp;
int count;
//prompt the user to enter the number of elements
cout << "Enter number of elements:" << endl;
//scan for the value
cin >> n;
//prompt the user to enter the number
cout << "Enter numbers:" << endl;
//iterate a for loop
for (int i = 0; i<n; i++)
{
//scan for the values
cin >> inp;
//push in to the vector
a.push_back(inp);
}
//iterate a for loop
for (int i = 0; i<n; i++)
{
//set the count equal to 0
count = 0;
//iterate a for loop
for (int j=0; j<n; j++)
{
//if the value of "j" is not equal to "i"
if (j != i)
{
//if the value of at i and j are equal
if (a[i] == a[j])
//increment the count
count++;
}
}
//if the value of count is greater than 0
if (count > 0)
//break
break;
}
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Chapter 1 Solutions
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