Module: Character strings: Parsing arithmetic expressions


Problem

2 /4


Arithmetic expression-1

Problem

Write a program that evaluates an expression consisting of three numbers and two characters (only «+» or «–» characters are allowed). The input is a character string representing an arithmetic expression. All numbers are integers.
 
Examples
# Input Output
1 12+3+45 60
2 12-45+3 -30

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

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