proj.c

#include <stdio.h>

int diff(int a,int b)
{
	int c=a-b;
	if(c>=0)
		return c;
	else
		return -c;
}

int main()
{
	float grp_heads[100],n,matrix[100][100],min,dif,elements_in_row[100],m,p,temp=0,flag=1;
	float avg[100],sum[100];
	int height,i,j,k,pos=0;

	printf("enter number of groups\n");
	scanf("%d",&height);

	printf("enter the group heads:\n");
	for(i=0;i<height;i++)
		scanf("%f",&grp_heads[i]);

	FILE *fp;
	fp=fopen("abc.txt","r");

	if(!fp)
		return 1;
	
	for(i=0;i<100;i++)
		for(j=0;j<100;j++)
		fscanf(fp,"%f",&matrix[i][j]);
	

	for(i=0;i<height;i++)
	{
		elements_in_row[i]=1;
		sum[i]=grp_heads[i];
	}

	
	for(i=0;i<100;i++)
	{
		for(j=0;j<100;j++)
		{	
			min=diff(grp_heads[0],matrix[i][j]);
			pos=0;
			for(k=1;k<height;k++){
				dif=diff(grp_heads[k],matrix[i][j]);
				if(min>dif){
					min=dif;
					pos=k;
				}
			}
			elements_in_row[pos]++;
			sum[pos]=sum[pos]+matrix[i][j];
		}
	}
	while(flag==1)
	{

		for(i=0;i<height;i++)
		{
			avg[i] = temp/elements_in_row[i];
			temp = grp_heads[i];

			if(avg[i]-grp_heads[i]<0.1)	flag=0;
			else flag=1;	

			grp_heads[i]=avg[i];
			elements_in_row[i]=1;
			
		}
		if (flag==0)
			break;
	}
		
	for(i=0;i<height;i++)
		printf("%2f\n",grp_heads[i]);
		
	printf("\n");

}