frequency hopping radio

Ultraviolet A 11248-frequency hopping Question Link Given a network, we need to transport traffic from 1 to n C and ask if it is possible. If it is possible to output data, if it is not possible, ask if it is possible to expand the capacity of an edge, if you can output these edges (first by u and then by V), if not, the output is impossible. Idea: first perform a network flow, and then increase the capacit

Ultraviolet A-11248 Frequency Hopping (network stream + cut) There are N vertices, M directed edges, and each edge has a corresponding capacity. Now you are required to ship from Point 1 to point N. The shipping volume is C.If it can be shipped, output possibleIf it cannot be shipped, check whether it can increase only one arc to make the shipping successful. If so, output all the arcs that can be increased

Card adds a lock to the warehouse and only has a key (password) can be opened for use. The CPU card is like a dedicated guard warehouse with a CPU chip in it, and the password for storing data needs to be verified. Different applications may have different passwords, so data access is more strictly controlled, the highest security. Non-contact IC cards use magnetic fields to obtain energy from the reader and exchange data. The magnetic field here is usually called the

RFID (Radio Frequency identification): A tutorialcontents: Introduction to Radio Frequency Identification-rfid What is RFID Compare RFID with Bar Code technology Benefits of RFID Disadvantages of RFID Active and Passive RFID Systems RFID Frequencies Operation of RFID S

The radio frequency automatic search function can be used as described in the following steps: 1. On the standby screen, click "Application". 2. Choose "FM Radio". 3. Select "Menu Key". 4. Select "Scan" 5. Select "All channels".