need help, how to use vector?

[linke2511]

Write a program to read 10 name from and input file, each name has 5 grades (from another input file)
now display and print them to an output file. Send input files, source code, and output file for grading

HERE IS MY ASSIGNMENT, I JUST FINISHED IT BY USING ARRAY, BUT I WAS WONDERING IF ANY BODY COULD TEACH ME HOW TO DO IT BY USING VECTOR? THANKS!

 #include<iostream>
#include<fstream>
#include<string>
#include<iomanip>

using namespace std;

int main()
{
	const int Num=10;
	const int iScore=50;
	string names[Num];
	string score[iScore];
	int count;
	ifstream inFile;
	ifstream inFile1;
	ofstream outFile;

	inFile.open("D:\\names.txt");
	outFile.open("D:\\nameslin.txt");

	for (count=0; count<Num;count++)  
	{
		inFile>>names[count];
		}
    inFile.close();

	inFile1.open("D:\\grades.txt");

	for(count=0; count<iScore; count++)
	{
		inFile1>>score[count];
	}
	inFile1.close();

	for (count=0; count<Num;count++)
	{
		int index=count*5;
		outFile<<setw(2)<<right<<count+1<<" : ";

		outFile<<setw(6)<<names[count]
                             <<" : "<<score[index]
                             <<" "<<score[index+1]
                             <<" "<<score[index+2]
                             <<" "<<score[index+3]
                             <<" "<<score[index+4]<<"\n";
		}

outFile.close();

	cout<<"These names are:\n";

	for (count=0; count<Num;count++)
	{
		cout<<setw(3)<<count+1<<": ";
		int index=count*5;
		cout <<setw(6)<<names[count]
                        <<" : "<<score[index]
                        <<" "<<score[index+1]
                        <<" "<<score[index+2]
                        <<" "<<score[index+3]
                        <<" "<<score[index+4]<<"\n";
	}

return 0;
}

[metulburr]

these two functions read/write a vector to and from a file. You could use them to implement in:

//write vector to file spaced by index, separated by sep
void write(std::string filename, std::vector<std::string> v, std::string sep="\n"){
    std::ofstream f;
    f.open(filename);
    for (std::vector<int>::size_type i = 0; i != v.size(); i++) {
        f << v[i] << sep;
    }
    f.close();
}
//open file and read into vector str
std::vector<std::string> open(std::string filename){ 
    std::string s = "";
    std::vector<std::string> v;
    std::ifstream f;
    f.open(filename);
    while(getline(f, s)){
        v.push_back(s);
    }
    f.close();
    return v;
}

[linke2511]

thx a lot!