top10.cpp

/*
Put input in a file named in.txt in the same directory as the source
*/

#include<iostream>
#include<cmath>
#include<fstream>
#include<algorithm>

using namespace std;

bool isPrime(long long t){
    if(t==2)
        return true;
    int sq = sqrt(t);
    for(long long i=2;i<sq;i++){
        if(t%i==0)
            return false;
    }
    return true;
}

int main(){
    ifstream in;
    in.open("in.txt");
    int init = 0,cnt=0;
    long long prime,even,odd;
    long long arr[10] = {0};
    prime = even = odd = 0;
    long long t;
    while(in>>t){
        if(t==-1)
            break;
        if(isPrime(t)){
            prime++;
        }
        if(t%2==0)
            even++;
        else
            odd++;
        if(!init && cnt<10){
            cnt++;
            arr[0] = t;
            sort(arr,arr+10);
        }
        else{
            if(t>arr[9])
                arr[0] = t;
            sort(arr,arr+10);
        }
    }
    cout<<"Top 10 numbers: \n";
    for(int i=0;i<10;i++){
        cout<<arr[i]<<" ";
    }
    cout<<endl;
    cout<<"Number of Primes: "<<prime<<endl;
    cout<<"Number of Even: "<<even<<endl;
    cout<<"Number of Odd: "<<odd;
    return 0;
}