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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#695611 | #6434. Paimon Sorting | _xqy_ | WA | 88ms | 4412kb | C++20 | 1.9kb | 2024-10-31 20:26:19 | 2024-10-31 20:26:21 |
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);
int lst,mx;
for (int i = 0 ; i < n ; ++i) {
if (i == 0) {
lst = 0;
mx = a[i];
} else {
if (a[i] <= mx) {
lst += tr.query(n) - tr.query(a[i]);
} else {
mx = a[i];
lst += 2;
}
}
if (!used[a[i]]) {
used[a[i]] = 1;
tr.modify(a[i] , 1);
}
cout << lst << " \n"[i == n - 1];
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3844kb
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: -100
Wrong Answer
time: 88ms
memory: 4412kb
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 20 22 23 27 29 35 39 48 0 0 0 0 1 1 0 2 4 6 9 9 9 11 15 17 23 29 31 34 38 42 51 0 0 2 0 1 3 5 8 10 14 0 1 3 4 6 9 9 0 1 1 3 5 9 1...
result:
wrong answer 5th lines differ - expected: '0 1 3 3 4 8 10 12 16 18 27 29 30 34 36 42 46 55', found: '0 1 3 3 4 8 10 12 16 18 20 22 23 27 29 35 39 48'