Computer Science
Write a program to input a formula with some brackets and checks, and prints out if the formula has the same number of opening and closing parentheses.
Python
Python String Manipulation
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Answer
str = input("Enter a formula: ")
count = 0
for ch in str :
if ch == '(' :
count += 1
elif ch == ')' :
count -= 1
if count == 0 :
print("Formula has same number of opening and closing parentheses")
else :
print("Formula has unequal number of opening and closing parentheses")Output
Enter a formula: s(s-a)(s-b)(s-c)
Formula has same number of opening and closing parentheses
=====================================
Enter a formula: s((s-a)(s-b)(s-c)
Formula has unequal number of opening and closing parentheses
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