IMPORT - Galactic Import
With the introduction of the new ThrustoZoom gigadimensional drive, it has become possible for HyperCommodities, the import/export conglomerate from New Jersey, to begin trading with even the most remote galaxies in the universe. HyperCommodities wants to import goods from some of the galaxies in the Plural Z sector. Planets within these galaxies export valuable products and raw materials like vacuuseal, transparent aluminum, digraphite, and quantum steel. Preliminary reports have revealed the following facts:
- Each galaxy contains at least one and at most 26 planets. Each
planet within a galaxy is identified by a unique letter from A to Z.
- Each planet specializes in the production and export of one good.
Different planets within the same galaxy export different goods.
- Some pairs of planets are connected by hyperspace shipping lines.
If planets A and B are connected, they can trade goods freely. If
planet C is connected to B but not to A, then A and C can still trade
goods with each other through B, but B keeps 5% of the shipment as a
shipping fee. (Thus A only receives 95% of what C shipped, and C
receives only 95% of what A shipped.) In general, any two planets can
trade goods as long as they are connected by some set of shipping
lines, but each intermediate planet along the shipping route keeps 5%
of what it shipped (which is not necessarily equal to 5% of the
- At least one planet in each galaxy is willing to open a
ThrustoZoom shipping line to Earth. A ThrustoZoom line is the same as
any other shipping line within the galaxy, as far as business is
concerned. For example, if planet K opens a ThrustoZoom line to
Earth, then the Earth can trade goods freely with K, or it can trade
goods with any planet connected to K, subject to the usual shipping
The input consists of one or more galaxy descriptions. Each galaxy description begins with a line containing an integer N which specifies the number of planets in the galaxy. The next N lines contain descriptions of each planet, which consist of:
- The letter used to represent the planet.
- A space.
- The relative value of the planet's export, in the form d.dd.
- A space.
- A string containing letters and/or the character `*'; a letter
indicates a shipping line to that planet, and a `*' indicates a
willingness to open a ThrustoZoom shipping line to Earth.
A sample input file is shown here:
1 F 0.81 * 5 E 0.01 *A D 0.01 A* C 0.01 *A A 1.00 EDCB B 0.01 A* 10 S 2.23 Q* A 9.76 C K 5.88 MI E 7.54 GC M 5.01 OK G 7.43 IE I 6.09 KG C 8.42 EA O 4.55 QM Q 3.21 SO
The following output file should be produced from the above sample input:
Import from F Import from A Import from A
we have to take input till EOF??