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namespace belugina
{
void Simple_Merging_Sort (char *name){ 
	 int a1, a2, k, i, j, kol, tmp;  
	FILE *f, *f1, *f2;  
	kol = 0;  
	if ( (f = fopen(name,"r")) == NULL )    
		printf("\nИсходный файл не может быть прочитан...");  
	else {    while ( !feof(f) ) {      
		fscanf(f,"%d",&a1);      
		kol++;    
		}   
	 fclose(f);  
	} 
k = 1;  
while ( k < kol ){ 
	f = fopen(name,"r");    
	f1 = fopen("smsort_1","w");    
	f2 = fopen("smsort_2","w");   
	if ( !feof(f) ) fscanf(f,"%d",&a1);    
	while ( !feof(f) ){     
		 for ( i = 0; i < k && !feof(f) ; i++ ){        
			fprintf(f1,"%d ",a1); fscanf(f,"%d",&a1); }      
		for ( j = 0; j < k && !feof(f) ; j++ ){        
			fprintf(f2,"%d ",a1);  fscanf(f,"%d",&a1);}   
	 }   
	 fclose(f2);    fclose(f1);    fclose(f); 
f = fopen(name,"w");   f1 = fopen("smsort_1","r");    
	f2 = fopen("smsort_2","r");    
	if ( !feof(f1) ) fscanf(f1,"%d",&a1);   
	if ( !feof(f2) ) fscanf(f2,"%d",&a2);    
	while ( !feof(f1) && !feof(f2) ){     
	 	i = 0;      j = 0;     
	 	while ( i < k && j < k && !feof(f1) && !feof(f2) ) {        
			if ( a1 < a2 ) {          
			fprintf(f,"%d ",a1); fscanf(f1,"%d",&a1);i++;}        
			else {          
			fprintf(f,"%d ",a2);fscanf(f2,"%d",&a2); j++;}      
	   	} 
while ( i < k && !feof(f1) ) {        
		     fprintf(f,"%d ",a1);  fscanf(f1,"%d",&a1); i++;}      
		while ( j < k && !feof(f2) ) {        
		     fprintf(f,"%d ",a2);   fscanf(f2,"%d",&a2);  j++;}   
 	 }    
	while ( !feof(f1) ) {      
		fprintf(f,"%d ",a1);      fscanf(f1,"%d",&a1);    }    
	while ( !feof(f2) ) {      
		fprintf(f,"%d ",a2);      fscanf(f2,"%d",&a2);    }   
	fclose(f2);    fclose(f1);    fclose(f);    k *= 2;  
	}  
	remove("smsort_1");  remove("smsort_2");
} 
}