20 lines
372 B
C++
20 lines
372 B
C++
// Collecting Numbers
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#include<bits/stdc++.h>
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using namespace std;
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int main() {
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int n; cin >> n;
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vector<int> in(n);
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for (auto &e: in) cin >> e;
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int count = 1;
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map<int, int> pos;
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for (int i{}; i < n; i++) pos[in[i]] = i;
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for (int i = 1; i < n; i++) {
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if (pos[i] > pos[i+1]) count ++;
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}
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cout << count << endl;
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return 0;
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}
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