#include <iostream>
using namespace std;
int main()
{
int count = 0;
int array[]= {1,1,2,3,4,1,3,2,9,8,7};
for (int i:array)
{if (i == 1) ++count;}
cout<<"Number 1 appeared "<<count<<" times in the array"<<endl;
return 0;
}

#include <iostream>
using namespace std;
int main()
{
int num, count = 0;
int array[]= {1,1,2,3,4,1,3,2,9,8,7};
cout<<"Which number would you like to know about how many times it appeared?"<<endl;
cin>>num;
for (int i:array)
{if (i == num) ++count;}
cout<<"Number "<<num<<" appeared "<<count<<" times in the array"<<endl;
return 0;
}

#include <iostream>
#include <algorithm>
#include <iterator>
using namespace std;
int main()
{
    int array[]= {1,1,2,3,4,1,3,2,9,8,7};
    int num = 1;
    unsigned int cnt = count(begin(array), end(array), num);
    cout << "The number " << num << " appears " << cnt << " times\n";
}