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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#304425 | #8004. Bit Component | ucup-team228# | WA | 0ms | 3804kb | C++17 | 2.7kb | 2024-01-13 19:40:45 | 2024-01-13 19:40:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
struct DSU {
static const int N = 2e5 + 10;
int Parent[N], Rank[N], Size[N], cnt;
void init(int n) {
for (int i = 1; i <= n; i++) {
Parent[i] = i, Rank[i] = 0, Size[i] = 1;
}
cnt = n;
}
int find(int v) {
if (Parent[v] == v) return v;
else return Parent[v] = find(Parent[v]);
}
void unite(int u, int v) {
u = find(u), v = find(v);
if (u == v) return;
if (Rank[u] < Rank[v]) swap(u, v);
if (Rank[v] == Rank[u]) Rank[u]++;
Parent[v] = u, cnt--;
Size[u] += Size[v];
}
} dsu;
bool getbit(int mask, int bit) {
return mask & (1 << bit);
}
bool check(int n, int b, const vector<int>& a) {
int tot = 0;
for (int i = 0; i < n; i++) {
tot += __builtin_popcount(a[i]);
}
dsu.init(n * b);
for (int i = 0; i < n; i++) {
for (int j = 0; j + 1 < b; j++) {
if (getbit(a[i], j) && getbit(a[i], j + 1)) {
dsu.unite(i * b + j + 1, i * b + j + 2);
}
}
}
for (int i = 0; i + 1 < n; i++) {
for (int j = 0; j < b; j++) {
if (getbit(a[i], j) && getbit(a[i + 1], j)) {
dsu.unite(i * b + j + 1, (i + 1) * b + j + 1);
}
}
}
return n * b - tot + 1 == dsu.cnt;
}
void foo() {
const int n = 9;
const int b = 4;
vector<int> a(n);
iota(a.begin(), a.end(), 1);
do {
if (check(n, b, a)) {
cout << "YES\n";
for (int x : a) {
cout << x << " " << bitset<b>(x) << "\n";
}
return;
}
} while (next_permutation(a.begin(), a.end()));
cout << "NO\n";
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
#ifdef LOCAL
freopen("input.txt", "r", stdin);
#endif
// foo();
int n;
cin >> n;
if (__builtin_popcount(n + 1) == 1) {
cout << "YES\n";
vector<int> ans = {1};
int b = 0;
while (ans.size() < n) {
b++;
vector<int> tmp = ans;
reverse(tmp.begin(), tmp.end());
for (int x : tmp) {
ans.push_back(x | (1 << b));
}
ans.push_back(1 << b);
}
for (int x : ans) {
cout << x << " ";
}
cout << "\n";
// assert(check(n, 20, ans));
} else {
cout << "NO\n";
}
#ifdef LOCAL
cout << "\nTime elapsed: " << double(clock()) / CLOCKS_PER_SEC << " s.\n";
#endif
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3536kb
input:
1
output:
YES 1
result:
ok answer is 1
Test #2:
score: 0
Accepted
time: 0ms
memory: 3484kb
input:
2
output:
NO
result:
ok answer is 0
Test #3:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
3
output:
YES 1 3 2
result:
ok answer is 1
Test #4:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
4
output:
NO
result:
ok answer is 0
Test #5:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
5
output:
NO
result:
ok answer is 0
Test #6:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
6
output:
NO
result:
ok answer is 0
Test #7:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
7
output:
YES 1 3 2 6 7 5 4
result:
ok answer is 1
Test #8:
score: 0
Accepted
time: 0ms
memory: 3532kb
input:
8
output:
NO
result:
ok answer is 0
Test #9:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
9
output:
NO
result:
ok answer is 0
Test #10:
score: 0
Accepted
time: 0ms
memory: 3512kb
input:
10
output:
NO
result:
ok answer is 0
Test #11:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
11
output:
NO
result:
ok answer is 0
Test #12:
score: 0
Accepted
time: 0ms
memory: 3732kb
input:
12
output:
NO
result:
ok answer is 0
Test #13:
score: -100
Wrong Answer
time: 0ms
memory: 3768kb
input:
13
output:
NO
result:
wrong answer Jury has the answer, participant doesn't