Miscellany

#include <stdio.h>
#include <string.h>
main()
{
	char a[40], b=' ';
	int r, n;
	printf("Please enter a string that includes two words at least: ");
	fgets(a, 39, stdin);
	r=strlen(a);
	for(n=0;n<r;n++) {
	if(a[n]==b) {
	a[n]=='\n';
	}
	}
	printf("%s", a);
}