640. Solve the Equation LeetCode Solution | Easy Approach

Minimum Cost to Merge Stones

Solve the Equation Solve a given equation and return the value of 'x' in the form of a string "x=#value". The equation contains only '+''-' operation, the variable 'x' and its coefficient. You should return "No solution" if there is no solution for the equation, or "Infinite solutions" if there are infinite solutions for the equation.

If there is exactly one solution for the equation, we ensure that the value of 'x' is an integer.

Example 1:

Input: equation = "x+5-3+x=6+x-2"
Output: "x=2"

Example 2:

Input: equation = "x=x"
Output: "Infinite solutions"

Example 3:

Input: equation = "2x=x"
Output: "x=0"


  • 3 <= equation.length <= 1000
  • equation has exactly one '='.
  • equation consists of integers with an absolute value in the range [0, 100] without any leading zeros, and the variable 'x'.

Solve the Equation Solutions

Time: O(n)
Space: O(n)


 Will be updated Soon


 Will be updated Soon


  Will be updated Soon

Watch Tutorial

Checkout more Solutions here

Leave a Comment

Your email address will not be published. Required fields are marked *