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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 |
---|---|---|---|---|---|---|---|---|---|
#810199 | #9870. Items | ucup-team191# | TL | 26ms | 3828kb | C++23 | 2.3kb | 2024-12-11 20:21:13 | 2024-12-11 20:21:20 |
Judging History
answer
#include <bits/stdc++.h>
#define x first
#define y second
#define X first
#define Y second
using namespace std;
using ll=long long;
using vi=vector<int>;
using vl=vector<ll>;
using pii=pair<int,int>;
#define all(a) begin(a),end(a)
#define sz(a) (int)a.size()
#define pb push_back
#define rep(i,a,b) for(int i = (a);i < (b);i++)
#define PB push_back
const int N=100010;
const char en='\n';
const ll LLINF=1ll<<60;
const ll mod = 998244353, root = 62;
ll modpow(ll x, ll eks) {
ll ret = 1;
for(;eks;eks >>= 1) {
if(eks & 1) ret = ret * x % mod;
x = x * x % mod;
}
return ret;
}
void ntt(vl &a) {
int n = sz(a), L = 31 - __builtin_clz(n);
static vl rt(2, 1);
for (static int k = 2, s = 2; k < n; k *= 2, s++) {
rt.resize(n);
ll z[] = {1, modpow(root, mod >> s)};
rep(i,k,2*k) rt[i] = rt[i / 2] * z[i & 1] % mod;
}
vi rev(n);
rep(i,0,n) rev[i] = (rev[i / 2] | (i & 1) << L) / 2;
rep(i,0,n) if (i < rev[i]) swap(a[i], a[rev[i]]);
for (int k = 1;k < n;k *= 2)
for(int i = 0;i < n; i += 2 * k) rep(j,0,k) {
ll z = rt[j + k] * a[i + j + k] % mod, &ai = a[i + j];
a[i + j + k] = ai - z + (z > ai ? mod : 0);
ai += (ai + z >= mod ? z - mod : z);
}
}
vl conv(const vl &a, const vl &b) {
if(a.empty() || b.empty()) return {};
int s = sz(a) + sz(b) - 1, B = 32 - __builtin_clz(s), n = 1 << B;
int inv = modpow(n, mod - 2);
vl L(a), R(b), out(n);
L.resize(n), R.resize(n);
ntt(L), ntt(R);
rep(i,0,n) out[-i & (n - 1)] = (ll)L[i] * R[i] % mod * inv % mod;
ntt(out);
return {out.begin(), out.begin() + s};
}
map<pair<pair<ll,ll>,int>,vl> mem;
ll cn[N],m;
int t,n;
vl f(ll l,ll r,int k)
{
if (mem.find({{l,r},k})!=mem.end()) return mem[{{l,r},k}];
if (k==1)
{
vl odg(r-l+1);
for (ll x=l;x<=r;++x) if (x>=0 && x<=n) odg[x-l]=cn[x];
return mem[{{l,r},k}]=odg;
}
ll l1=(l-n)/2,r1=(r+n+1)/2;
vl a=f(l1,r1,k/2);
vl b=f(l1,r1,(k+1)/2);
vl c=conv(a,b);
vl odg(r-l+1);
for (int i=0;i<=r-l;++i) odg[i]=c[i+(l-2*l1)];
return odg;
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cin>>t;
while (t--)
{
mem.clear();
cin>>n>>m;
for (int i=0;i<=n;++i) cn[i]=0;
for (int i=0;i<n;++i)
{
int x;
cin>>x;
cn[x]=1;
//cn[x]=max(rand(),1);
}
vl u=f(m,m,n);
if (u[0]) cout<<"YES\n";
else cout<<"NO\n";
}
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3560kb
input:
4 5 25 0 0 0 0 5 5 11 4 4 4 5 5 5 0 1 2 3 4 5 5 25 0 1 2 3 4
output:
YES NO NO NO
result:
ok 4 token(s): yes count is 1, no count is 3
Test #2:
score: 0
Accepted
time: 3ms
memory: 3632kb
input:
1314 1 0 0 1 0 1 1 1 0 1 1 1 2 0 0 0 2 0 0 1 2 0 0 2 2 0 1 0 2 0 1 1 2 0 1 2 2 0 2 0 2 0 2 1 2 0 2 2 2 1 0 0 2 1 0 1 2 1 0 2 2 1 1 0 2 1 1 1 2 1 1 2 2 1 2 0 2 1 2 1 2 1 2 2 2 2 0 0 2 2 0 1 2 2 0 2 2 2 1 0 2 2 1 1 2 2 1 2 2 2 2 0 2 2 2 1 2 2 2 2 2 3 0 0 2 3 0 1 2 3 0 2 2 3 1 0 2 3 1 1 2 3 1 2 2 3 2 0...
output:
YES NO NO YES YES YES YES YES NO NO YES NO NO NO YES NO YES NO NO NO NO NO NO YES YES YES YES YES YES YES NO NO NO NO NO NO YES NO YES NO NO NO YES NO 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 NO NO NO YES NO NO NO YES NO NO NO YES YES YES...
result:
ok 1314 token(s): yes count is 732, no count is 582
Test #3:
score: 0
Accepted
time: 20ms
memory: 3572kb
input:
10000 4 1 0 0 0 0 4 1 0 0 0 1 4 1 0 0 0 2 4 1 0 0 0 3 4 1 0 0 0 4 4 1 0 0 1 0 4 1 0 0 1 1 4 1 0 0 1 2 4 1 0 0 1 3 4 1 0 0 1 4 4 1 0 0 2 0 4 1 0 0 2 1 4 1 0 0 2 2 4 1 0 0 2 3 4 1 0 0 2 4 4 1 0 0 3 0 4 1 0 0 3 1 4 1 0 0 3 2 4 1 0 0 3 3 4 1 0 0 3 4 4 1 0 0 4 0 4 1 0 0 4 1 4 1 0 0 4 2 4 1 0 0 4 3 4 1 0 ...
output:
NO YES NO NO NO YES YES YES YES YES NO YES NO NO NO NO YES NO NO NO NO YES NO NO 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 NO YES NO NO NO YES YES YES YES YES NO YES NO NO NO NO YES NO NO NO NO YES NO NO NO NO YES NO NO NO YES YES YES YES ...
result:
ok 10000 token(s): yes count is 6168, no count is 3832
Test #4:
score: 0
Accepted
time: 7ms
memory: 3824kb
input:
1612 5 0 0 0 0 0 0 5 0 1 1 1 1 1 5 0 0 1 1 1 1 5 0 2 2 2 2 2 5 0 0 2 2 2 2 5 0 1 2 2 2 2 5 0 0 1 2 2 2 5 0 3 3 3 3 3 5 0 0 3 3 3 3 5 0 1 3 3 3 3 5 0 0 1 3 3 3 5 0 2 3 3 3 3 5 0 0 2 3 3 3 5 0 1 2 3 3 3 5 0 0 1 2 3 3 5 0 4 4 4 4 4 5 0 0 4 4 4 4 5 0 1 4 4 4 4 5 0 0 1 4 4 4 5 0 2 4 4 4 4 5 0 0 2 4 4 4 5...
output:
YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO NO NO YES NO NO NO YES NO NO NO YES NO NO NO YES NO NO NO YES NO NO NO YES NO NO NO...
result:
ok 1612 token(s): yes count is 864, no count is 748
Test #5:
score: 0
Accepted
time: 26ms
memory: 3828kb
input:
4662 6 0 0 0 0 0 0 0 6 0 1 1 1 1 1 1 6 0 0 1 1 1 1 1 6 0 2 2 2 2 2 2 6 0 0 2 2 2 2 2 6 0 1 2 2 2 2 2 6 0 0 1 2 2 2 2 6 0 3 3 3 3 3 3 6 0 0 3 3 3 3 3 6 0 1 3 3 3 3 3 6 0 0 1 3 3 3 3 6 0 2 3 3 3 3 3 6 0 0 2 3 3 3 3 6 0 1 2 3 3 3 3 6 0 0 1 2 3 3 3 6 0 4 4 4 4 4 4 6 0 0 4 4 4 4 4 6 0 1 4 4 4 4 4 6 0 0 1...
output:
YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO YES NO...
result:
ok 4662 token(s): yes count is 2730, no count is 1932
Test #6:
score: -100
Time Limit Exceeded
input:
1 100000 9999999999 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 9...