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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#390825 | #4772. Movie collection | I_Love_Sonechka# | AC ✓ | 70ms | 5528kb | C++17 | 1.1kb | 2024-04-15 22:41:08 | 2024-04-15 22:41:09 |
Judging History
answer
#include <bits/stdc++.h>
#include <math.h>
using namespace std;
// c++ short types
#define Int long long
#define vt vector
class SegTree {
public:
vt<int> t;
int n;
SegTree(int _n) : n(_n) {
t = vt<int>(2 * n, 0);
}
void update(int pos, int dx) {
for(pos += n; pos > 0; pos >>= 1) {
t[pos] += dx;
}
}
int get(int l, int r) {
int res = 0;
for(l += n, r += n; l < r; l >>= 1, r >>= 1) {
if(l & 1) {
res += t[l++];
}
if(r & 1) {
res += t[--r];
}
}
return res;
}
};
void solver() {
int n, m; cin >> n >> m;
SegTree st(n + m);
vt<int> when(n, 0);
for(int i = 0; i < n; ++i) {
when[i] = n - i -1;
st.update(when[i], 1);
}
for(int i = 0; i < m; ++i) {
int id; cin >> id; --id;
cout << st.get(when[id] + 1, n + m) << " ";
st.update(when[id], -1);
when[id] = i + n;
st.update(when[id], +1);
}
cout << "\n";
}
int main()
{
ios::sync_with_stdio(false); cin.tie(nullptr);
int tt = 1;
cin >> tt;
for(int t = 0; t < tt; ++t) {
solver();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3620kb
input:
2 3 3 3 1 1 5 3 4 4 5
output:
2 1 0 3 0 4
result:
ok 2 lines
Test #2:
score: 0
Accepted
time: 70ms
memory: 5528kb
input:
25 3 3 3 1 1 5 3 4 4 5 84 887 10 20 30 32 11 73 58 74 3 20 63 68 84 71 25 79 17 17 60 57 76 10 3 27 27 56 44 20 6 43 67 55 18 52 2 29 80 59 58 82 34 36 21 74 63 45 24 79 18 83 8 9 9 10 75 75 65 74 10 70 33 76 81 6 83 82 74 78 13 4 31 46 39 52 75 57 52 15 8 25 13 15 33 61 64 24 51 44 13 61 69 1 8 65 ...
output:
2 1 0 3 0 4 9 19 29 31 13 72 58 73 10 7 64 69 83 73 33 79 28 0 66 65 77 18 12 39 0 66 55 15 26 55 73 67 38 65 29 47 80 69 27 82 53 55 47 31 31 62 51 29 15 83 43 44 0 28 80 0 76 11 3 79 59 33 83 29 11 20 8 83 52 49 61 69 66 32 17 41 2 57 21 45 10 3 18 77 79 27 76 43 7 5 81 57 11 28 74 60 64 38 72 5...
result:
ok 25 lines