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Fixed subtraction

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This commit is contained in:
Sasha Koshka 2022-11-21 13:49:36 -05:00
parent 317ad4674d
commit eea76b7e5b
1 changed files with 13 additions and 2 deletions
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15
tree.go
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@ -259,10 +259,21 @@ func (operation *Operation) Solution () (solution int64, err error) {
solution += subSolution solution += subSolution
} }
case OpcodeSubtract: case OpcodeSubtract:
for _, operand := range operation.operands { if len(operation.operands) == 1 {
solution, err = operation.operands[0].Solution()
solution *= -1
if err != nil { return }
break
}
for index, operand := range operation.operands {
subSolution, err = operand.Solution() subSolution, err = operand.Solution()
if err != nil { return } if err != nil { return }
solution -= subSolution if index == 0 {
solution = subSolution
} else {
solution -= subSolution
}
} }
case OpcodeMultiply: case OpcodeMultiply:
solution = 1 solution = 1