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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#168437 | #6434. Paimon Sorting | zlxFTH | WA | 2ms | 3584kb | C++14 | 1.2kb | 2023-09-08 15:01:44 | 2023-09-08 15:01:44 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
struct BIT {
int n;
vector<int> a;
BIT(int n = 0) : n(n), a(n + 1, 0) {}
void mdf(int x, int v) {
for (int i = x + 1; i <= n; i += i & -i) {
a[i] += v;
}
}
int qry(int x) {
if (x < 0 || x >= n) return 0;
int res = 0;
for (int i = x + 1; i; i -= i & -i) {
res += a[i];
}
return res;
}
int sum(int l, int r) {
int res = qry(r);
res -= qry(l - 1);
return res;
}
};
void solve() {
int n;
cin >> n;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
a[i]--;
}
int ans = 0;
cout << 0 << " ";
BIT t(n);
vector<int> vis(n);
auto cg = [&](int x) {
if (!vis[x]) {
t.mdf(x, 1);
}
vis[x]++;
};
cg(a[0]);
for (int i = 1; i < n; i++) {
int v = a[i];
if (a[0] >= a[i]) {
ans += t.sum(a[i] + 1, n - 1);
} else {
ans++;
ans -= (i - 1) - (vis[a[0]] - 1);
ans += i;
swap(a[0], a[i]);
}
cg(v);
cout << ans << " ";
}
cout << "\n";
}
int main() {
cin.tie(0)->sync_with_stdio(0);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 3584kb
input:
3 5 2 3 2 1 5 3 1 2 3 1 1
output:
0 2 3 5 7 0 2 4 0
result:
wrong answer 1st lines differ - expected: '0 2 3 5 7', found: '0 2 3 5 7 '