Интерфейси и nil

Програмиране с Go

Курс във Факултета по Математика и Информатика към СУ

Решение на Poor Man's Currying от Станислав Климов

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Към профила на Станислав Климов

Резултати

  • 5 точки от тестове
  • 1 бонус точка
  • 6 точки общо
  • 3 успешни тест(а)
  • 3 неуспешни тест(а)

Код

package main
func Repeater(s, sep string) func(int) string {
var buffer string
return func(times int) string {
for i := 0; i < times-1; i++ {
buffer += s + sep
}
buffer += s
return buffer
}
}
func Generator(gen func(int) int, initial int) func() int {
result := initial
return func() int {
defer func() { result = gen(result) }()
return result
}
}
func MapReducer(mapper func(int) int, reducer func(int, int) int, initial int) func(...int) int {
var sum int = initial
return func(args ...int) int {
for _, v := range args {
sum = reducer(sum, mapper(v))
}
return sum
}
}

Лог от изпълнението

PASS
ok  	_/tmp/d20181024-53-1f3t9cs	0.002s
--- FAIL: TestRepeater (0.00s)
    --- FAIL: TestRepeater/zero_repeats (0.00s)
        solution_test.go:129: Expected `` but got `gopher`
FAIL
exit status 1
FAIL	_/tmp/d20181024-53-1f3t9cs	0.002s
--- FAIL: TestRepeaterMultipleCalls (0.00s)
    solution_test.go:147: Expected `gopher,gopher,gopher` but got `gopher,gopher,gophergopher,gopher,gopher` after 2nd call
FAIL
exit status 1
FAIL	_/tmp/d20181024-53-1f3t9cs	0.002s
PASS
ok  	_/tmp/d20181024-53-1f3t9cs	0.003s
PASS
ok  	_/tmp/d20181024-53-1f3t9cs	0.003s
--- FAIL: TestMapReducerMultipleCalls (0.00s)
    solution_test.go:318: Expected 45 but got 81 after 2nd call
FAIL
exit status 1
FAIL	_/tmp/d20181024-53-1f3t9cs	0.002s

История (2 версии и 1 коментар)

Станислав обнови решението на 24.10.2018 14:29 (преди 10 месеца)

+package main
+
+func Repeater(s, sep string) func(int) string {
+ var buffer string
+ return func(times int) string {
+ for i := 0; i < times-1; i++ {
+ buffer += s + sep
+ }
+ buffer += s
+ return buffer
+ }
+}
+
+func Generator(gen func(int) int, initial int) func() int {
+ result := initial
+ return func() int {
+ defer func() { result = gen(result) }()
+ return result
+ }
+}
+
+func MapReducer(mapper func(int) int, reducer func(int, int) int, initial int) func(...int) int {
+ var sum int
+ var reducerValue int = initial
+ return func(args ...int) int {
+ for _, v := range args {
+ sum += reducer(reducerValue, mapper(v))
+ }
+ return sum
+ }
+}

Станислав обнови решението на 24.10.2018 15:10 (преди 10 месеца)

package main
func Repeater(s, sep string) func(int) string {
var buffer string
return func(times int) string {
for i := 0; i < times-1; i++ {
buffer += s + sep
}
buffer += s
return buffer
}
}
func Generator(gen func(int) int, initial int) func() int {
result := initial
return func() int {
defer func() { result = gen(result) }()
return result
}
}
func MapReducer(mapper func(int) int, reducer func(int, int) int, initial int) func(...int) int {
- var sum int
- var reducerValue int = initial
+ var sum int = initial
return func(args ...int) int {
for _, v := range args {
- sum += reducer(reducerValue, mapper(v))
+ sum = reducer(sum, mapper(v))
}
return sum
}
}