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#include <iostream> #include <cmath> #include <stack> #include <queue> #include <algorithm> using namespace std; int main() { ios_base::sync_with_stdio(false); int n; int answer = 0; cin >> n; for(int i = 0; i < n; i++) { string a, b; cin >> a >> b; sort(a.begin(), a.end()); sort(b.begin(), b.end()); if(a == b) { answer++; } } cout << answer << endl; return 0; } // ({})
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