//using the namespace std for not putting it again
using namespace std;

//declaring a constant value that is the size of our array
const int nNumStudents = 5;

//declaring all the functions that won't return any value
void printArray(), swapNum(int, int), sortArray(), findLower(int);

//declaring our array
int anScores[nNumStudents] = { 50, 43, 80, 70, 57 };

//declaring the min score variables
int nMinScore = 0, nMinScoreIndex = 0;

//defining the function that will print the array
void printArray(){

//using a for loop to print the array
for(int nStudent = 0;nStudent < nNumStudents; nStudent++) {

//printing our array
cout<< anScores[nStudent]<< endl;
}
}

//defining our function that will find the lowest number from an starting index
void findLower(int nStartIndex = 0){

//defining the lowest score in of all the array from an starting index
nMinScore = anScores[nStartIndex];

//say that if the starting index is greater than the size of the array
if(nStartIndex > nNumStudents){

//then the starting index is as the size of the array
nStartIndex = nNumStudents;
} else if(nStartIndex < 0) {

//but if is lower than cero then our starting index is 0
nStartIndex = 0;
}

//increase the starting index while it is lower than our array size
for(;nStartIndex < nNumStudents; nStartIndex++) {

//checking if the current score is lower than the lowest so
if (anScores[nStartIndex] <= nMinScore) {

//the lowest score is the same as the current score
nMinScore = anScores[nStartIndex];

//defining the min score index that is the same as current index
nMinScoreIndex = nStartIndex;
}
}
}

//defining our function swap to flip the elements of the array
void swapNum(int nArrayIndex = 0, int nArrayIndex2 = 0){

//checking if both index are lower than the array size
if(nArrayIndex<nNumStudents&&nArrayIndex2<nNumStudents){

//defining the values of each number from the index given in 2 variables
int nValue = anScores[nArrayIndex];
int nValue2 = anScores[nArrayIndex2];

//swapping the values of each index
anScores[nArrayIndex2] = nValue;
anScores[nArrayIndex] = nValue2;
}
}

//now defining the function that will sort our array
void sortArray(){

//using a for loop to do so
for(int nStudent = 0; nStudent < nNumStudents; nStudent++){

//find the lowest number and using the current student as starting index
findLower(nStudent);
//swapping the current student with the lowest value index of the array
swapNum(nStudent, nMinScoreIndex);
}
}

//defining the main function
int main(){

//outputting the following text
cout<< "The scores are:" << endl;

// printing our array
printArray();

//sorting the array
sortArray();

//outputting the following text
cout<< "The sorted scores are:" << endl;

//printing again the array to check how it was sorted
printArray();