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#include <iostream> #include <vector> #include <algorithm> using namespace std; int main() { ios_base::sync_with_stdio(false); int n; cin >> n; vector<int> v(n + 1), next_value(n + 1); vector<pair<int, int> > v2; for(int i = 1; i <= n; i++) { cin >> v[i]; v2.push_back(make_pair(v[i], i)); if(v[i] > 1) { next_value[v[i] - 1] = i; } } sort(v2.begin(), v2.end()); int rounds = 1; for(int i = 1; i < n; i++) { if(next_value[i] < v2[i - 1].second) { ++rounds; } } cout << rounds << endl; return 0; }
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