> What's the "%c" mean in the programming, It's a prinf() format placeholder for a single character, here the character '*'.
See http://en.wikipedia.org/wiki/Printf . > and how the Histogram know the "Value"'s value The values are those in the array n[]. The inner loop for ( j = 1; j <= n[ i ]; j++ ) printf( "%c", '*' ); prints a number of '*' characters; that number is n[i]. David
