getscores

#include <iostream>

using namespace std;

int getScores(int[]);
int countPerfect(int[],int);

int main(){
    int score[20], valid, valid_scores = 0;

    cout<<"This program will allow you to enter up to 20 scores"<<endl;
    cout<<"and will then report how many perfect scores were entered."<<endl;

    valid_scores = getScores(score);
    valid = countPerfect(score,valid_scores);
    cout<<"the "<<valid_scores<<" you entered include "<<valid<<" perfect scores"<<endl;
}

int getScores(int score[20]){
    int valid_score = 0;
    for(int i=0; i< 20; i++){
        cout << "\nEnter a score 0 - 100 (or -1 to quit):"<<endl;
        cin  >> score[i];

        if(score[i] == -1){

            break;
        }
        else if(score[i]<0 || score[i]>100){
            cout<<"Invalid score. Scores may not be greater than 100.\n"<<endl;
        }
        else{
            valid_score++;
        }
    }
    return valid_score;
}

int countPerfect(int score[20],int valid){
    int perfect_score = 0;

    for(int j = 0; j < valid; j++){
        if(score[j] == 100){
            perfect_score++;
        }
    }
    return perfect_score;
}