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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#696029 | #6434. Paimon Sorting | _xqy_ | AC ✓ | 83ms | 4920kb | C++20 | 2.1kb | 2024-10-31 21:20:27 | 2024-10-31 21:20:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using LL = long long;
template<typename T>
struct Fenwick{
int n;
std::vector<T> tr;
Fenwick(int n) : n(n), tr(n + 1, 0){}
int lowbit(int x){
return x & -x;
}
void modify(int x, T c){
for(int i = x; i <= n; i += lowbit(i)) tr[i] += c;
}
void modify(int l, int r, T c){
modify(l, c);
if (r + 1 <= n) modify(r + 1, -c);
}
T query(int x){
T res = T();
for(int i = x; i; i -= lowbit(i)) res += tr[i];
return res;
}
T query(int l, int r){
return query(r) - query(l - 1);
}
int find_first(T sum){
int ans = 0; T val = 0;
for(int i = std::__lg(n); i >= 0; i--){
if ((ans | (1 << i)) <= n && val + tr[ans | (1 << i)] < sum){
ans |= 1 << i;
val += tr[ans];
}
}
return ans + 1;
}
int find_last(T sum){
int ans = 0; T val = 0;
for(int i = std::__lg(n); i >= 0; i--){
if ((ans | (1 << i)) <= n && val + tr[ans | (1 << i)] <= sum){
ans |= 1 << i;
val += tr[ans];
}
}
return ans;
}
};
using BIT = Fenwick<int>;
void solve() {
int n;
cin >> n;
vector<int> a(n);
for (int i = 0 ; i < n ; ++i) {
cin >> a[i];
}
BIT tr(n);
vector<int> used(n + 1);
LL lst,mx,cnt = 0;
int id = -1;
vector<int> num(n + 1);
for (int i = 0 ; i < n ; ++i) {
if (i == 0) {
lst = 0;
mx = a[i];
cnt = 0;
} else {
if (a[i] <= mx) {
lst += tr.query(n) - tr.query(a[i]);
if (a[i] == mx) {
if (id == -1) id = i;
}
} else {
if (id != -1) {
lst += (i - max(id - 1 , 0));
} else {
lst += 1;
}
cnt += 1;
mx = a[i];
id = -1;
}
}
if (!used[a[i]]) {
used[a[i]] = 1;
tr.modify(a[i] , 1);
}
cout << lst + cnt << " \n"[i == n - 1];
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
cin >> t;
while (t--) {
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3860kb
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: 83ms
memory: 4920kb
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