#include <iostream>
#include <fstream>

using namespace std;

const int MAX_GRADES{100};

void ReadArray(int grades[MAX_GRADES] , int &  gradeCount);
void PrintArray(const int grades[], int gradeCount);
int FindMax(const int values[], int size);


int main() {
    int grades[MAX_GRADES] {0};
    int gradeCount{0};

    int i;

    for(i = 0; i < MAX_GRADES; ++i) {
        grades[i] = 0;
    }

    ReadArray(grades, gradeCount);
    PrintArray(grades, gradeCount);
    PrintArray(grades, gradeCount);

    return 0;
}
/*
struct NumberT {
    int data[MAX_GRADES];
    int size;
}

*/
int FindMax(const int values[], int size){
    int max{-1};
    int i;

    if (size > 0) {
       max = values[0];

       for(i = 1; i < size; ++i) {
          if (max < values[i]) {
              max = values[i];
          }
       }
    } 

    return max;
}


void PrintArray(const int grades[], int gradeCount){
    int i;

    for(i = 0; i < gradeCount; ++i) {
       cout << i << " " << grades[i] << endl;
    }
    return;
}

void ReadArray(int grades[MAX_GRADES] , int &  gradeCount){
    ifstream inFile;
    int i;

    inFile.open("grades.dat");

    inFile >> gradeCount;

    if (gradeCount < MAX_GRADES) {
        for (i = 0; i < gradeCount; i++) {
           inFile >> grades[i];
        }
    } else {
       gradeCount = 0;
       cout << "Error " << endl;
    }

    inFile.close();

    return;
}