發送短信 : MODEL AND VARIABLE NEIGHBORHOOD DESCENT ALGORITHM FOR VEHICLE ROUTING PROBLEM WITH MULTIPLE TRIPS, MULTIPLE TIME WINDOWS, AND SIMULTANEOUS PICKUP - DELIVERY

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  / ___//  /_   _//  / ____|| | || | ||  | \| || 
  \___ \\   -| ||-  / //---`' | || | ||  |  ' || 
  /    //   _| ||_  \ \\___   | \\_/ ||  | .  || 
 /____//   /_____//  \_____||  \____//   |_|\_|| 
`-----`    `-----`    `----`    `---`    `-` -`