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Brackets.cpp
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Brackets.cpp
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#include <cassert>
#include <string>
#include <stack>
#include <iostream>
using namespace std;
/*
https://codility.com/demo/results/trainingW9Z6JB-MC8/
I was extra careful this time to make sure that I wouldn't blow it up again :)
Shame on me for Nesting...
*/
int solutionBrackets(const string &S)
{
stack<char> stk;
for (char c : S)
{
switch (c)
{
case '{':
stk.push('}');
continue;
case '[':
stk.push(']');
continue;
case '(':
stk.push(')');
continue;
default:
break;
}
if (false == stk.empty() && stk.top() == c)
stk.pop();
else
return 0;
}
return stk.empty();
}
void testBrackets()
{
cout << "Expect 1: " << solutionBrackets("(()(())())") << endl;
cout << "Expect 0: " << solutionBrackets("())") << endl;
cout << "Expect 0: " << solutionBrackets("((((((((") << endl;
cout << "Expect 0: " << solutionBrackets("))))))))") << endl;
cout << "Expect 1: " << solutionBrackets("(()())") << endl;
cout << "Expect 1: " << solutionBrackets("()()") << endl;
cout << "Expect 1: " << solutionBrackets("((()))()()") << endl;
cout << "Expect 0: " << solutionBrackets(")(") << endl;
cout << "Expect 0: " << solutionBrackets("))())(()((") << endl;
cout << "Expect 0: " << solutionBrackets(")((") << endl;
cout << "Expect 0: " << solutionBrackets("(()))") << endl;
cout << "Expect 1: " << solutionBrackets("{[()()]}") << endl;
cout << "Expect 0: " << solutionBrackets("([)()]") << endl;
cout << "Expect 1: " << solutionBrackets("") << endl;
cout << "Expect 0: " << solutionBrackets("}])()([{") << endl;
cout << "Expect 0: " << solutionBrackets("[(}(())())") << endl;
cout << "Expect 1: " << solutionBrackets("[({([]{})})()]") << endl;
cout << "Expect 0: " << solutionBrackets("[({([]{})])()]") << endl;
cout << "Expect 0: " << solutionBrackets("[({([]{})})()[") << endl;
cout << "Expect 1: " << solutionBrackets("[]{}()") << endl;
cout << "Expect 1: " << solutionBrackets("[(){}]{}([])") << endl;
}