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- #include<iostream>
- #include <stack>
- using namespace std;
- char prave_zatvorky[300];
- int main(){
- prave_zatvorky['}'] = '{';
- prave_zatvorky[')'] = '(';
- prave_zatvorky[']'] = '[';
- stack<char> zasobnik;
- string s;
- cin >> s;
- for(int i=0;i<s.size();++i)
- {
- if(prave_zatvorky[ s[i] ] == 0) // lava zatvorka
- zasobnik.push(s[i]);
- else
- {
- if(zasobnik.empty() || zasobnik.top() != prave_zatvorky[ s[i] ])
- {
- cout << "nie\n";
- return 0;
- }
- else zasobnik.pop();
- }
- }
- if(!zasobnik.empty()) cout << "nie\n";
- else cout << "ano\n";
- return 0;
- }
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