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String Character Occurrence and Missing Number
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String Character Occurrence and Missing Number

MediumPython

Problem

GSPANN QA automation utilities need a compact validation routine for text payloads and a nearly complete numeric sequence. Implement one function that performs both analyses in a single call.

  1. Count every character in text, preserving case and treating spaces and punctuation as characters.
  2. Given values, containing the integers from 1 through 50 with exactly one value missing and exactly one other value duplicated, return the missing and duplicated values without sorting the input.

Formal Specification

Implement analyze_input(text, values).

  • Input: text is a string. values is a list of exactly 50 integers.
  • Output: Return a dictionary with two keys:
    • counts: a dictionary mapping each distinct character to its frequency, in the order characters first appear.
    • missing: the absent integer.
    • duplicate: the integer that occurs twice.

The input is valid, and the character count must be case-sensitive. Use linear time and avoid modifying values.

Constraints

  • 0 <= len(text) <= 10^5
  • values has exactly 50 integers
  • values contains integers from 1 through 50, with exactly one missing and one duplicated
  • Character matching is case-sensitive and Unicode-safe
  • The input list must not be modified

Function Signature

def analyze_input(text, values):
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