-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
146 lines (121 loc) · 2.81 KB
/
main.go
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
package main
import (
"bufio"
"flag"
"fmt"
"os"
"strconv"
"strings"
)
func main() {
// Use Flags to run a part
methodP := flag.String("method", "p1", "The method/part that should be run, valid are p1,p2 and test")
flag.Parse()
switch *methodP {
case "p1":
partOne()
break
case "p2":
partTwo()
break
case "test":
break
}
}
func partOne() {
input := readInput()
programStr := strings.Split(input[0], ",")
var program []int
for _, s := range programStr {
i, _ := strconv.Atoi(s)
program = append(program, i)
}
teriminate := false
// setup input special
program[1] = 12
program[2] = 2
// Loop over every 4 values starting from zero
for opCodeI := 0; opCodeI < len(program); opCodeI = opCodeI + 4 {
switch program[opCodeI] {
case 1:
fmt.Println("Added to", program[opCodeI+3], "the numbers", program[opCodeI+1], "and", program[opCodeI+2])
program[program[opCodeI+3]] = program[program[opCodeI+1]] + program[program[opCodeI+2]]
break
case 2:
fmt.Println("Multipled to", program[opCodeI+3])
program[program[opCodeI+3]] = program[program[opCodeI+1]] * program[program[opCodeI+2]]
break
case 99:
fmt.Println("teriminated")
teriminate = true
break
default:
fmt.Println("Error")
break
}
if teriminate {
break
}
}
fmt.Println(program)
fmt.Println("Positon zero is", program[0])
}
func partTwo() {
input := readInput()
programStr := strings.Split(input[0], ",")
// look for the right noun and verb
for i := 0; i < 99; i++ {
for j := 0; j < 99; j++ {
// reset data
var program []int
for _, s := range programStr {
i, _ := strconv.Atoi(s)
program = append(program, i)
}
program[1] = i
program[2] = j
runProgram(program)
if program[0] == 19690720 {
fmt.Println("Noun is", i, " Verb is", j)
break
}
}
}
}
func runProgram(program []int) {
teriminate := false
// Loop over every 4 values starting from zero
for opCodeI := 0; opCodeI < len(program); opCodeI = opCodeI + 4 {
switch program[opCodeI] {
case 1:
//fmt.Println("Added to", program[opCodeI+3], "the numbers", program[opCodeI+1], "and", program[opCodeI+2])
program[program[opCodeI+3]] = program[program[opCodeI+1]] + program[program[opCodeI+2]]
break
case 2:
//fmt.Println("Multipled to", program[opCodeI+3])
program[program[opCodeI+3]] = program[program[opCodeI+1]] * program[program[opCodeI+2]]
break
case 99:
//fmt.Println("teriminated")
teriminate = true
break
default:
//fmt.Println("Error")
break
}
if teriminate {
break
}
}
}
// Read data from input.txt
// Return the string, so that we can deal with it however
func readInput() []string {
var input []string
f, _ := os.Open("input.txt")
scanner := bufio.NewScanner(f)
for scanner.Scan() {
input = append(input, scanner.Text())
}
return input
}