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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#646368 | #6434. Paimon Sorting | longyin | AC ✓ | 94ms | 5012kb | C++20 | 2.1kb | 2024-10-16 22:30:14 | 2024-10-16 22:30:15 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define endl "\n"
using namespace std;
using ll = long long;
const int INF = 1e9;
const int MOD = 1e9 + 7;
const int N = 1e6 + 5;
struct BIT {
vector<int> tr;
int n;
BIT(int n = N - 1) : n(n) {
tr.resize(n + 1, 0);
}
int lowbit(int x) {
return x & -x;
}
void add(int x, int k) {
for (int i = x; i <= n; i += lowbit(i)) {
tr[i] += k;
}
}
ll sum(int x) {
ll res = 0;
for (int i = x; i >= 1; i -= lowbit(i)) {
res += tr[i];
}
return res;
}
};
int a[N];
int check(vector<int> arr) {
int ans = 0;
for (int i = 0; i < arr.size(); i++) {
int cnt = 0;
for (int j = 0; j < arr.size(); j++) {
if (arr[i] < arr[j]) {
cnt++;
swap(arr[i], arr[j]);
}
}
ans += cnt;
}
return ans;
}
void solve() {
int n;
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> a[i];
}
int ans = 0;
BIT bit(n);
vector<bool> vis(n + 1, false);
for (int i = 1, mx = a[i], flag = 0, cnt = 0; i <= n; i++) {
if (!vis[a[i]])
bit.add(a[i], 1);
vis[a[i]] = true;
if (i > 1 && a[i] == mx)
flag = 1;
cnt += flag - (flag ? a[i] > mx : 0);
if (a[i] > mx) {
ans += cnt + 1;
ans += bit.sum(n) - bit.sum(mx);
cnt = 0;
flag = 0;
mx = a[i];
}
else {
ans += bit.sum(n) - bit.sum(a[i]);
}
cout << ans << " \n"[i == n];
}
// for (int i = 1; i <= n; i++) {
// vector<int> arr(i);
// for (int j = 0; j < i; j++) {
// arr[j] = a[j + 1];
// }
// cout << check(arr) << " \n"[i == n];
// }
}
signed main() {
ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
int T = 1;
cin >> T;
while (T--) {
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3596kb
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:
ok 3 lines
Test #2:
score: 0
Accepted
time: 94ms
memory: 5012kb
input:
6107 19 10 13 8 8 11 18 12 9 15 19 6 13 11 11 17 9 14 2 18 12 1 8 10 2 10 2 6 1 5 9 5 7 16 14 4 2 15 12 14 10 3 2 9 15 4 12 9 5 15 10 3 2 5 6 7 8 6 1 6 4 18 6 5 12 12 11 2 10 10 5 10 13 15 13 10 17 7 11 2 1 1 2 1 1 3 2 1 2 17 11 15 3 10 7 15 15 10 5 17 3 3 14 13 11 11 2 3 2 2 3 7 6 1 7 5 3 5 1 7 2 1...
output:
0 2 4 6 7 9 11 16 17 19 28 31 36 41 43 51 55 67 68 0 2 4 6 6 8 10 14 17 18 22 25 0 1 3 5 7 8 11 16 22 26 26 31 33 37 42 42 0 1 3 5 7 9 11 17 19 23 0 1 3 3 4 8 10 12 16 18 27 29 30 34 36 42 46 55 0 0 0 0 1 1 0 2 4 6 9 9 9 11 15 21 27 33 35 38 42 46 55 0 0 3 0 1 3 5 8 10 14 0 1 3 4 6 9 9 0 1 1 3 7 11 ...
result:
ok 6107 lines