Algorithm Notes
Summary: Merge Triplets — notes not yet curated.
Time: Estimate via loops/recurrences; common classes: O(1), O(log n), O(n), O(n log n), O(n^2)
Space: Count auxiliary structures and recursion depth.
Tip: See the Big-O Guide for how to derive bounds and compare trade-offs.
Big-O Guide
Source
"""
Merge Triplets
TODO: Add problem description
"""
from src.interview_workbook.leetcode._registry import register_problem
from src.interview_workbook.leetcode._types import Category, Difficulty
class Solution:
def solve(self, triplets, target):
"""Check if we can merge triplets to form the target triplet."""
good = set()
for t in triplets:
if all(t[i] <= target[i] for i in range(3)):
for i in range(3):
if t[i] == target[i]:
good.add(i)
return len(good) == 3
def demo() -> str:
"""Run a demo for the Merge Triplets problem."""
triplets = [[2, 5, 3], [1, 8, 4], [1, 7, 5]]
target = [2, 7, 5]
print(f"Triplets: {triplets}, Target: {target}")
s = Solution()
result = s.solve(triplets, target)
print(f"Final result: {result}")
return f"Merge Triplets result for target {target} -> {result}"
if __name__ == "__main__":
demo()
register_problem(
id=1899,
slug="merge_triplets",
title="Merge Triplets to Form Target Triplet",
category=Category.GREEDY,
difficulty=Difficulty.MEDIUM,
tags=["array", "greedy"],
url="https://leetcode.com/problems/merge-triplets-to-form-target-triplet/",
notes="",
)