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@@ -66,6 +66,10 @@ func check(equation Equation, index, result int) bool {
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}
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resultAdd := check(equation, index+1, result+equation.numbers[index])
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+
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+ if result == 0 {
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+ result++
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+ }
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resultMul := check(equation, index+1, result*equation.numbers[index])
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if resultAdd {
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@@ -78,7 +82,7 @@ func check(equation Equation, index, result int) bool {
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func part1(equations []Equation) int {
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var result int
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for _, equation := range equations {
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- if check(equation, 0, 1) {
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+ if check(equation, 0, 0) {
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result += equation.result
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}
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}
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