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26 lines
483 B
C++
26 lines
483 B
C++
// R38788162
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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, a[10005], ans = 0;
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cin >> n;
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for (int i = 0; i < n; i++) {
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cin >> a[i];
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}
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for (int i = 0; i < n; i++) {
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for (int j = 1; j < n; j++) {
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if (a[j] < a[j - 1]) {
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a[j] ^= a[j - 1];
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a[j - 1] ^= a[j];
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a[j] ^= a[j - 1];
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ans++;
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}
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}
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}
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cout << ans << endl;
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return 0;
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}
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