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function twoSum(nums, target) {
const seen = new Map();
for (let i = 0; i < nums.length; i++) {
const need = target - nums[i];
if (seen.has(need))
return [seen.get(need), i];
seen.set(nums[i], i);
}
}
// ✓ 12/12 tests · O(n) time · O(n) space+25 XP earned
Two Sum solved
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def maxProfit(prices): min_price = float("inf") max_profit = 0 for price in prices: min_price = min(min_price, price) max_profit = max(max_profit, price - min_price) return max_profit
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