-
Notifications
You must be signed in to change notification settings - Fork 46
Expand file tree
/
Copy pathParenthesis_Balance.cpp
More file actions
55 lines (44 loc) · 955 Bytes
/
Parenthesis_Balance.cpp
File metadata and controls
55 lines (44 loc) · 955 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#include <math.h>
#include <iostream>
#include <stack>
using namespace std ;
bool parenBal(string s)
{
stack<char> st ;
bool ans = true ;
for(int i = 0 ; i < s.length() ; i++)
{
if(s[i] == '(' || s[i] == '{' || s[i] =='[')
st.push(s[i]) ;
else if (!st.empty() && st.top() == '(' && s[i] == ')')
{
st.pop() ;
ans = true ;
}
else if (!st.empty() && st.top() == '[' && s[i] == ']')
{
st.pop() ;
ans = true ;
}
else if (!st.empty() && st.top() == '{' && s[i] == '}')
{
st.pop() ;
ans = true ;
}
else
ans = false ;
}
if(!st.empty())
ans = false ;
return ans ;
}
int main()
{
string inp ;
cin >> inp ;
if(parenBal(inp))
cout << "Valid String" <<endl ;
else
cout << "InValid String" << endl ;
return 0 ;
}