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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#732036 | #7108. Couleur | IUT_Bhalochelera | AC ✓ | 2197ms | 57508kb | C++23 | 4.7kb | 2024-11-10 12:48:36 | 2024-11-10 12:48:37 |
Judging History
answer
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
#define PLL pair<long long, long long>
#define LL long long
#define faster {ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);}
#define ordered_multiset tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update>
#define all(v) v.begin(),v.end()
const LL mod = 998244353;
const int N = 1e6 + 10;
LL inf = 1e17 + 1;
class PST{
#define lc(u) tree[u].left
#define rc(u) tree[u].right;
struct node{
int left = 0, right = 0, val = 0;
};
node *tree;
int N, LG, time = 0, I = 0;
node create(int l, int r){
return {l, r, merge(tree[l].val, tree[r].val)};
}
int merge(LL a, LL b){
return a + b;
}
int build(int le, int ri){
int id = ++time;
if(le == ri) return tree[id] = node(), id;
int m = (le + ri) / 2;
return tree[id] = create(build(le, m), build(m + 1, ri)), id;
}
int update(int id, int le, int ri, int pos, int val){
int nid = ++time;
if(le == ri) return tree[nid] = {0, 0, (tree[id].val + val)}, nid; // change here
int m = (le + ri) / 2;
if(pos <= m){
tree[nid] = create(update(tree[id].left, le, m, pos, val), tree[id].right);
}else{
tree[nid] = create(tree[id].left, update(tree[id].right, m + 1, ri, pos, val));
}
return nid;
}
int query(int id, int le, int ri, int l, int r){
if (l <= le && r >= ri) {
return tree[id].val;
}
if (r < le || l > ri) {
return I;
}
int m = (le + ri) >> 1;
return merge(query(tree[id].left, le, m, l, r), query(tree[id].right, m + 1, ri, l, r));
}
public:
PST(int N, int U){ // U --> number of expected updates
this->N = N;
LG = 33 - __builtin_clz(N);
tree = new node[N * 4 + U * LG];
build(0, N - 1);
}
int update(int id, int pos, int val){
return update(id, 0, N - 1, pos, val);
}
int query(int id, int l, int r){
if(l > r) return I;
return query(id, 0, N - 1, l, r);
}
~PST(){
delete[] tree;
}
};
void solve (int tc) {
int n; cin>>n;
multiset<LL> allInv;
set<pair<int, int>> ranges; ranges.insert({1, n});
vector<int> a(n + 1), root(n + 1);
vector<LL> ansInRange(n + 1);
LL ans = 0;
PST tree(n + 10, n);
for(int i = 1; i <= n; i++){
cin>>a[i];
int large = tree.query(root[i - 1], a[i] + 1, n);
ans += large;
root[i] = tree.update(root[i - 1], a[i], 1);
}
allInv.insert(ans);
ansInRange[1] = ans;
for(int i = 0; i < n; i++){
LL p; cin>>p;
p ^= ans;
cout<<ans<<' ';
auto [l, r] = *prev (ranges.upper_bound ({p, n}));
allInv.erase(allInv.find(ansInRange[l]));
ranges.erase({l, r});
if(l == r) continue;
if(r - p > p - l){
LL left = 0, right = ansInRange[l];
for(int j = l; j < p; j++){
right -= (tree.query(root[r], 0, a[j] - 1) - tree.query(root[p - 1], 0, a[j] - 1));
left += (tree.query(root[j], a[j] + 1, n) - tree.query(root[l - 1], a[j] + 1, n));
}
right -= (tree.query(root[r], 0, a[p] - 1) - tree.query(root[p - 1], 0, a[p] - 1));
right -= left;
ansInRange[l] = left;
allInv.insert(ansInRange[l]);
if(p != r) ansInRange[p + 1] = right;
if(p != r) allInv.insert(ansInRange[p + 1]);
}else{
LL left = ansInRange[l], right = 0;
for(int j = p + 1; j <= r; j++){
left -= (tree.query(root[p], a[j] + 1, n) - tree.query(root[l - 1], a[j] + 1, n));
right += (tree.query(root[j], a[j] + 1, n) - tree.query(root[p], a[j] + 1, n));
}
left -= (tree.query(root[p], a[p] + 1, n) - tree.query(root[l - 1], a[p] + 1, n));
left -= right;
ansInRange[l] = left;
allInv.insert(ansInRange[l]);
if(p != r) ansInRange[p + 1] = right;
if(p != r) allInv.insert(ansInRange[p + 1]);
}
if(p > l)
ranges.insert({l, p - 1});
if(r > p)
ranges.insert({p + 1, r});
auto it = allInv.end(); it--;
ans = *it;
}
cout<<'\n';
}
signed main() {
faster
int t = 1;
cin >> t;
for (int tc = 1; tc <= t; tc++) {
solve(tc);
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3836kb
input:
3 5 4 3 1 1 1 5 4 5 3 1 10 9 7 1 4 7 8 5 7 4 8 21 8 15 5 9 2 4 5 10 6 15 4 8 8 1 12 1 10 14 7 14 2 9 13 10 3 37 19 23 15 7 2 10 15 2 13 4 5 8 7 10
output:
7 0 0 0 0 20 11 7 2 0 0 0 0 0 0 42 31 21 14 14 4 1 1 1 0 0 0 0 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 2197ms
memory: 57508kb
input:
11116 10 10 5 10 3 6 4 8 5 9 8 31 27 24 11 12 3 0 2 3 1 10 8 2 7 2 8 10 1 10 9 10 6 5 2 13 2 1 0 1 3 1 10 7 10 7 6 1 3 10 6 7 9 21 18 10 1 6 5 4 8 9 10 10 2 10 4 8 8 5 7 2 6 7 20 10 9 1 15 0 4 2 9 7 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 10 1 2 3 4 5 6 7 8 9 10 6 3 5 2 7 10 9 1 4 8 10 1 10 1 3...
output:
21 18 16 12 10 6 4 1 1 0 12 12 10 10 4 4 4 2 1 0 20 16 9 5 3 3 3 0 0 0 22 14 8 8 5 5 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 12 7 4 4 2 2 1 0 0 20 18 8 3 1 1 0 0 0 0 45 21 21 10 3 3 3 0 0 0 17 11 8 2 1 1 1 0 0 0 13 4 1 0 0 0 0 0 0 0 29 27 22 15 9 7 4 3 1 0 26 16 9 2 1 1 1 1 1 ...
result:
ok 11116 lines
Extra Test:
score: 0
Extra Test Passed