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8804 - Two Sum #21835

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YqxLzx opened this issue Jan 11, 2023 · 0 comments

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YqxLzx commented Jan 11, 2023

// your answers
type createLenByNum<N,T extends any[] = []> = T['length'] extends N ? T : T extends [...infer Rest] ? createLenByNum<N,[...Rest,1]> : []

type TwoSum<T extends any[], U extends number> = T extends [infer F,infer M,...infer Rest] ? 
[...createLenByNum<F>,...createLenByNum<M>]['length'] extends U ? true : 
TwoSum<[F,...Rest],U> extends false ? TwoSum<[M,...Rest],U> : true
 : false

YqxLzx added answer en labels

github-actions bot added the 8804 label

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