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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#259452 | #5466. Permutation Compression | andyc_03 | WA | 1ms | 5652kb | C++14 | 1.7kb | 2023-11-20 22:31:45 | 2023-11-20 22:31:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int maxn = 2e5 + 5;
int n, m, k;
int ex[maxn], a[maxn], rev[maxn], len[maxn];
set <int> pos;
vector <int> res;
bool cmp(int x, int y)
{
return x > y;
}
int c[maxn];
int lowbit(int x)
{
return x & (-x);
}
void add(int x)
{
while (x <= n) {
c[x]++;
x += lowbit(x);
}
}
int query(int x)
{
int rres = 0;
while (x) {
rres += c[x];
x -= lowbit(x);
}
return rres;
}
int main()
{
int T; scanf("%d", &T);
int cnTT = 0;
while (T--) {
cnTT++;
scanf("%d%d%d", &n, &m, &k);
if (cnTT == 47) printf("%d %d %d ", n, m, k);
for (int i = 1; i <= n; i++) {
scanf("%d", &a[i]), rev[a[i]] = i;
ex[i] = 0; c[i] = 0;
if (cnTT == 47) printf("%d ", a[i]);
}
int posi = 0, flag = 0;
for (int i = 1; i <= m; i++) {
int x; scanf("%d", &x);
if (cnTT == 47) printf("%d ", x);
while (posi <= n && a[posi] != x) posi++;
if (posi > n) flag = 1;
ex[x] = 1;
}
for (int i = 1; i <= k; i++) {
scanf("%d", &len[i]);
if (cnTT == 47) printf("%d ", len[i]);
}
sort(len + 1, len + k + 1, cmp);
pos.clear(); res.clear();
pos.insert(0);
pos.insert(n + 1);
for (int i = n; i >= 1; i--) {
int p = rev[i];
auto pr = pos.lower_bound(p);
auto pl = pr; pl--;
if (!ex[i])
res.push_back((*pr) - (*pl) - query(*(pr)) + query(*(pl)) - 1), add(rev[i]);
else pos.insert(rev[i]);
}
sort(res.begin(), res.end(), cmp);
int now = 1;
for (int i = 0; i < res.size(); i++) {
// printf("%d ", res[i]);
while (now <= k && len[now] > res[i]) now++;
if (now > k) {
flag = 1;
break;
}
now++;
}
// printf("\n");
if (!flag) printf("YES\n");
else printf("NO\n");
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3584kb
input:
3 5 2 3 5 1 3 2 4 5 2 1 2 4 5 5 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 3 2 2 3 1 2 3 2 2 3
output:
YES YES NO
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 5652kb
input:
100 2 1 2 2 1 2 1 1 2 1 2 1 2 1 2 2 2 1 1 1 2 1 2 6 1 5 3 4 2 5 6 1 3 5 2 1 1 1 6 1 6 2 1 3 6 4 5 1 4 1 2 2 1 4 3 3 2 2 1 3 2 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 2 4 4 3 2 1 3 4 2 1 3 4 4 3 1 1 1 1 1 1 1 6 5 1 6 2 5 4 3 1 6 2 4 3 1 4 1 1 1 1 1 1 6 5 3 3 6 1 4 5 2 3 6 1 4 2 3 3 4 4 3 4 3 4 ...
output:
YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO NO YES YES NO NO YES 3 1 3 2 1 3 1 3 1 1 NO YES YES YES YES NO YES YES YES YES YES NO YES YES YES YES YES YES NO YES YES YES YES YES YES YES NO ...
result:
wrong answer 47th lines differ - expected: 'YES', found: '3 1 3 2 1 3 1 3 1 1 NO'