fix: add hints to generics1 and generics2 exercises
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// This shopping list program isn't compiling!
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// This shopping list program isn't compiling!
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// Use your knowledge of generics to fix it.
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// Use your knowledge of generics to fix it.
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// Execute `rustlings hint generics1` for hints!
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// I AM NOT DONE
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// I AM NOT DONE
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fn main() {
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fn main() {
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// This powerful wrapper provides the ability to store a positive integer value.
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// This powerful wrapper provides the ability to store a positive integer value.
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// Rewrite it using generics so that it supports wrapping ANY type.
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// Rewrite it using generics so that it supports wrapping ANY type.
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// Execute `rustlings hint generics2` for hints!
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// I AM NOT DONE
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// I AM NOT DONE
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struct Wrapper {
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struct Wrapper {
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