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export function twoSum(numbers: number[], target: number): number[] {
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let L = 0;
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let R = numbers.length - 1;
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while (L <= R) {
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const curSum = numbers[L] + numbers[R];
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if (curSum === target) return [L + 1, R + 1];
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curSum > target ? R-- : L++;
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}
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return [-1, -1];
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};
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