blob: cf27820265e431dec47868c8c07193307fc89fdf (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
package main
import (
"fmt"
"io/ioutil"
"os"
"strconv"
)
func main() {
start, sum, fuelsum := 0, 0, 0
if len(os.Args) < 2 {
panic("runtime error: missing operand")
}
file, err := ioutil.ReadFile(os.Args[1])
if err != nil {
panic(err)
}
for i := 0; i < len(file); i++ {
if file[i] == '\n' {
arg, err := strconv.Atoi(string(file[start:i])) // i-1??
if err != nil {
panic(err)
}
start = i + 1
sum += (arg / 3) - 2
fuelsum += tyranny(arg)
}
}
fmt.Println(sum)
fmt.Println(fuelsum)
}
func tyranny(mass int) int {
subtotal := 0
for fuel := (mass / 3) - 2; fuel >= 0; fuel = (fuel / 3) - 2 {
subtotal += fuel
}
return subtotal
}
|
