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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 |
---|---|---|---|---|---|---|---|---|---|
#368812 | #8339. Rooted Tree | none# | WA | 0ms | 44864kb | C++17 | 3.6kb | 2024-03-27 16:45:55 | 2024-03-27 16:46:13 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define For(i,n) for(int i=1;i<=n;i++)
#define Fork(i,k,n) for(int i=k;i<=n;i++)
#define ForkD(i,k,n) for(int i=n;i>=k;i--)
#define Rep(i,n) for(int i=0;i<n;i++)
#define ForD(i,n) for(int i=n;i;i--)
#define RepD(i,n) for(int i=n;i>=0;i--)
#define Forp(x) for(int p=pre[x];p;p=next[p])
#define Forpiter(x) for(int &p=iter[x];p;p=next[p])
#define Lson (o<<1)
#define Rson ((o<<1)+1)
#define MEM(a) memset(a,0,sizeof(a));
#define MEMI(a) memset(a,0x3f,sizeof(a));
#define MEMi(a) memset(a,128,sizeof(a));
#define MEMx(a,b) memset(a,b,sizeof(a));
#define INF (0x3f3f3f3f)
#define F (1000000007)
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define vi vector<int>
#define pi pair<int,int>
#define SI(a) ((a).size())
#define Pr(kcase,ans) printf("Case #%d: %lld\n",kcase,ans);
#define PRi(a,n) For(i,n-1) cout<<a[i]<<' '; cout<<a[n]<<endl;
#define PRi2D(a,n,m) For(i,n) { \
For(j,m-1) cout<<a[i][j]<<' ';\
cout<<a[i][m]<<endl; \
}
#pragma comment(linker, "/STACK:102400000,102400000")
#define ALL(x) (x).begin(),(x).end()
#define gmax(a,b) a=max(a,b);
#define gmin(a,b) a=min(a,b);
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
ll mul(ll a,ll b){return (a*b)%F;}
ll add(ll a,ll b){return (a+b)%F;}
ll sub(ll a,ll b){return ((a-b)%F+F)%F;}
void upd(ll &a,ll b){a=(a%F+b%F)%F;}
inline int read()
{
int x=0,f=1; char ch=getchar();
while(!isdigit(ch)) {if (ch=='-') f=-1; ch=getchar();}
while(isdigit(ch)) { x=x*10+ch-'0'; ch=getchar();}
return x*f;
}
const int L = 6e4 + 5;
const int HASH_CNT = 2;
int hashBase[HASH_CNT] = {29, 31};
int hashMod[HASH_CNT] = {int(1e9 + 9), 998244353};
struct StringWithHash {
char s[L];
int ls;
int hsh[HASH_CNT][L];
int pwMod[HASH_CNT][L];
void init() { // 初始化
ls = 0;
for (int i = 0; i < HASH_CNT; ++i) {
hsh[i][0] = 0;
pwMod[i][0] = 1;
}
}
StringWithHash() { init(); }
void extend(char c) {
s[++ls] = c; // 记录字符数和每一个字符
for (int i = 0; i < HASH_CNT; ++i) { // 双哈希的预处理
pwMod[i][ls] =
1ll * pwMod[i][ls - 1] * hashBase[i] % hashMod[i]; // 得到b^ls
hsh[i][ls] = (1ll * hsh[i][ls - 1] * hashBase[i] + c) % hashMod[i];
}
}
vector<int> getHash(int l, int r) { // 得到哈希值 字符串从1开始计数
vector<int> res(HASH_CNT, 0);
for (int i = 0; i < HASH_CNT; ++i) {
int t =
(hsh[i][r] - 1ll * hsh[i][l - 1] * pwMod[i][r - l + 1]) % hashMod[i];
t = (t + hashMod[i]) % hashMod[i];
res[i] = t;
}
return res;
}
};
bool equal(const vector<int> &h1, const vector<int> &h2) {
assert(h1.size() == h2.size());
for (unsigned i = 0; i < h1.size(); i++)
if (h1[i] != h2[i]) return false;
return true;
}
int n,q,m,k;
StringWithHash s[310],t;
int calc(int i) {
int l=1,K=k;
do{
int L=l,R=m,ans=L-1;
while(L<=R) {
int M=L+R>>1;
if(equal(t.getHash(L, M),s[i].getHash(L, M)) ) {
ans=M,L=M+1;
}else R=M-1;
}
// cout<<"|"<<ans<<'|'<<" ";
if(ans==m) return 1;
if(K==0) return 0;
l=ans+2;
if(l>m) return 1;
--K;
}while(1);
return 0;
}
int main()
{
// freopen("G.in","r",stdin);
// freopen(".out","w",stdout);
cin>>n>>q>>m>>k;
For(i,n) {
string st;cin>>st;
Rep(j,m) s[i].extend(st[j]);
}
For(i,q) {
string st;cin>>st;
t.init();
Rep(j,m) t.extend(st[j]);
int ans=0;
For(j,n) {
int p=calc(j);
// cout<<p;
ans+=p;
}
cout<<ans<<endl;
}
return 0;
}
詳細信息
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 44864kb
input:
6 2
output:
6 6
result:
wrong answer 1st numbers differ - expected: '18', found: '6'