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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#259448 | #5466. Permutation Compression | andyc_03 | WA | 1ms | 5860kb | C++14 | 1.6kb | 2023-11-20 22:26:03 | 2023-11-20 22:26:03 |
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);
for (int i = 1; i <= n; i++) {
scanf("%d", &a[i]), rev[a[i]] = i;
ex[i] = 0; c[i] = 0;
}
int posi = 0, flag = 0;
for (int i = 1; i <= m; i++) {
int x; scanf("%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]);
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);
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: 1ms
memory: 5796kb
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: 5860kb
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 YES YES YES YES YES YES YES YES YES YES YES NO NO NO YES YES YES NO YES YES YES YES YES 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 YE...
result:
wrong answer 28th lines differ - expected: 'NO', found: 'YES'