56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"strconv"
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"strings"
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)
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const t = ` 55
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94 48
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95 30 96
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77 71 26 67
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97 13 76 38 45
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07 36 79 16 37 68
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48 07 09 18 70 26 06
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18 72 79 46 59 79 29 90
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20 76 87 11 32 07 07 49 18
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27 83 58 35 71 11 25 57 29 85
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14 64 36 96 27 11 58 56 92 18 55
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02 90 03 60 48 49 41 46 33 36 47 23
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92 50 48 02 36 59 42 79 72 20 82 77 42
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56 78 38 80 39 75 02 71 66 66 01 03 55 72
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44 25 67 84 71 67 11 61 40 57 58 89 40 56 36
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85 32 25 85 57 48 84 35 47 62 17 01 01 99 89 52
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06 71 28 75 94 48 37 10 23 51 06 48 53 18 74 98 15
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27 02 92 23 08 71 76 84 15 52 92 63 81 10 44 10 69 93`
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func main() {
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lines := strings.Split(t, "\n")
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f := strings.Fields(lines[len(lines)-1])
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d := make([]int, len(f))
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var err error
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for i, s := range f {
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if d[i], err = strconv.Atoi(s); err != nil {
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panic(err)
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}
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}
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d1 := d[1:]
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var l, r, u int
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for row := len(lines) - 2; row >= 0; row-- {
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l = d[0]
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for i, s := range strings.Fields(lines[row]) {
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if u, err = strconv.Atoi(s); err != nil {
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panic(err)
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}
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if r = d1[i]; l > r {
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d[i] = u + l
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} else {
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d[i] = u + r
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}
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l = r
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}
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}
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fmt.Println(d[0])
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}
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