#include <stdio.h>
#include <stdlib.h>

#define MAX 20000

int ReadFile(void)
{
	FILE *fp;
	int iNumber[MAX];
	int iBuffer;
	int i = 0;
	int j = 0;

	fp = fopen("songuyen.txt", "r");

	if (fp == NULL)
	{
		printf("Error reading file \n");
	}
	while (fscanf(fp,"%d", &iBuffer) != EOF)
	{
		iNumber[i] = iBuffer;
		i++;
	}

	for (i = 0;i<(MAX-1);i++)
	{
		for (j=i+1; j < MAX; j++)
		{
			if ((iNumber[j] > iNumber[i]))
			{
				iNumber[j] = iNumber[j+1];
			}
		}
	}
	fclose(fp);
}