main.go 2.2 KB

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  1. package main
  2. import (
  3. "fmt"
  4. "os"
  5. )
  6. var input *os.File
  7. var output *os.File
  8. var R int
  9. var C int
  10. var F int
  11. var N int
  12. var B int
  13. var T int
  14. var Rides []*Ride
  15. var Cars []*Car
  16. var Sched Scheduler
  17. type Ride struct {
  18. ID int
  19. a, b, x, y, s, f int
  20. used bool
  21. }
  22. type Scheduler interface {
  23. Add(*Car)
  24. Pop() *Car
  25. }
  26. type Car struct {
  27. ID int
  28. Rides []int
  29. Arrival int
  30. X int
  31. Y int
  32. }
  33. func (c *Car) Update(r *Ride) {
  34. c.moveTo(r.a, r.b)
  35. c.moveTo(r.x, r.y)
  36. c.Rides = append(c.Rides, r.ID)
  37. }
  38. func (c *Car) moveTo(x, y int) {
  39. xdist := c.X - x
  40. if xdist < 0 {
  41. xdist = -xdist
  42. }
  43. ydist := c.Y - y
  44. if ydist < 0 {
  45. ydist = -ydist
  46. }
  47. c.Arrival += xdist + ydist
  48. c.X = x
  49. c.Y = y
  50. }
  51. func Choose(c *Car) *Ride {
  52. for _, r := range Rides {
  53. if !r.used {
  54. return r
  55. }
  56. }
  57. return nil
  58. }
  59. func assign() bool {
  60. c := Sched.Pop()
  61. if c == nil {
  62. return false
  63. }
  64. r := Choose(c)
  65. if r == nil {
  66. return true
  67. }
  68. r.used = true
  69. c.Update(r)
  70. Sched.Add(c)
  71. return true
  72. }
  73. func solve() {
  74. Sched = &prioq{}
  75. // create cars
  76. for i := 0; i < F; i++ {
  77. c := &Car{
  78. ID: i,
  79. Arrival: 0,
  80. X: 0,
  81. Y: 0,
  82. }
  83. Cars = append(Cars, c)
  84. Sched.Add(c)
  85. }
  86. for assign() {
  87. }
  88. for _, c := range Cars {
  89. fmt.Fprintf(output, "%d", len(c.Rides))
  90. for _, ri := range c.Rides {
  91. fmt.Fprintf(output, " %d", ri)
  92. }
  93. fmt.Fprintf(output, "\n")
  94. }
  95. }
  96. func main() {
  97. sample := os.Args[1]
  98. fileIn := sample + ".in"
  99. fileOut := sample + ".out"
  100. var err error
  101. input, err = os.Open(fileIn)
  102. if err != nil {
  103. panic(fmt.Sprintf("open %s: %v", fileIn, err))
  104. }
  105. output, err = os.Create(fileOut)
  106. if err != nil {
  107. panic(fmt.Sprintf("creating %s: %v", fileOut, err))
  108. }
  109. defer input.Close()
  110. defer output.Close()
  111. // Global
  112. R = readInt()
  113. C = readInt()
  114. F = readInt()
  115. N = readInt()
  116. B = readInt()
  117. T = readInt()
  118. for i := 0; i < N; i++ {
  119. Rides = append(Rides, &Ride{
  120. ID: i,
  121. a: readInt(),
  122. b: readInt(),
  123. x: readInt(),
  124. y: readInt(),
  125. s: readInt(),
  126. f: readInt(),
  127. })
  128. }
  129. solve()
  130. }
  131. func readInt() int {
  132. var i int
  133. fmt.Fscanf(input, "%d", &i)
  134. return i
  135. }
  136. func readString() string {
  137. var str string
  138. fmt.Fscanf(input, "%s", &str)
  139. return str
  140. }
  141. func readFloat() float64 {
  142. var x float64
  143. fmt.Fscanf(input, "%f", &x)
  144. return x
  145. }