QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#403660 | #5312. Levenshtein Distance | qwqUwU_ | WA | 907ms | 12856kb | C++17 | 2.6kb | 2024-05-02 16:52:46 | 2024-05-02 16:52:46 |
Judging History
answer
// clang-format off
#include<bits/stdc++.h>
#define pb push_back
#define P make_pair
#define fi first
#define se second
#define rep(i,a,b) for(int i=(a);i<=(b);++i)
#define per(i,a,b) for(int i=(a);i>=(b);--i)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii; typedef pair<ll,int> pli; typedef pair<ll,ll> pll; typedef pair<int,ll> pil;
inline ll read(){
ll x=0,f=1,c=getchar();
while(c<'0'||c>'9')f=(c=='-'?-1:1),c=getchar();
while(c>='0'&&c<='9')x=(x<<1)+(x<<3)+(c^48),c=getchar();
return x*f;
}
const int N=1e5+3;
// clang-format on
int n,m,K;
char S[N],T[N];
int A[N<<1];
int sa[N<<1],rk[N<<1],st[18][N<<1];
inline int lcp(int i,int j){
if(i>n||j>m)return 0;
i=rk[i],j=rk[j+n+1];
if(i>j)swap(i,j);
int k=__lg(j-i++);
return min(st[k][i],st[k][j-(1<<k)+1]);
}
int main() {
//freopen("data.in", "r", stdin);
// freopen(".in","r",stdin);
// freopen("myans.out","w",stdout);
K=read();scanf("%s",S+1),n=strlen(S+1);
scanf("%s",T+1);m=strlen(T+1);
rep(i,1,n)A[i]=S[i];A[n+1]=32;
rep(i,1,m)A[n+1+i]=T[i];
static int cnt[N<<1];int len=n+m+1,lim=127;
rep(i,1,len)++cnt[rk[i]=A[i]];
rep(i,1,lim)cnt[i] += cnt[i-1];
per(i,len,1)sa[cnt[rk[i]]--]=i;
for(int w=1,p=0;w<=len;w<<=1,lim=p,p=0){
static int id[N<<1];
per(i,len,len-w+1)id[++p]=i;
rep(i,1,len)if(sa[i]>w)id[++p]=sa[i]-w;
memset(cnt,0,sizeof cnt);
rep(i,1,len)++cnt[rk[id[i]]];
rep(i,1,lim)cnt[i] += cnt[i-1];
per(i,len,1)sa[cnt[rk[id[i]]]--]=id[i],id[i]=0;
static int tmp[N<<1];swap(tmp,rk);
p=0;rep(i,1,len)rk[sa[i]]=(tmp[sa[i]]==tmp[sa[i-1]]&&tmp[sa[i]+w]==tmp[sa[i-1]+w]?p:++p);
if(p==n)break;
}
rep(i,1,len){
if(rk[i]==1)continue;
int &k=st[0][rk[i]]=max(0,st[0][rk[i-1]]-1);
while(A[i+k]==A[sa[rk[i]-1]+k])++k;
}
rep(j,1,17)rep(i,1,len-(1<<j)+1)st[j][i]=min(st[j-1][i],st[j-1][i+(1<<(j-1))]);
static int f[33][63],ans[33];
rep(k,0,m-1){
memset(f,0xfe,sizeof f);
f[0][K]=lcp(1,k+1);
//rep(i,1,min(K,n))f[i][K-i]=lcp(i+1,k+1)+i;
//rep(i,1,min(K,m-k))f[i][K+i]=lcp(1,k+i+1);
rep(v,0,K-1)rep(d,-min(K,n-1),min(K,m-k)){
int i=f[v][d+K],j=i+d;
if(i<0||j<0)continue;
if(j<m-k)f[v+1][d+K+1]=max(f[v+1][d+K+1],f[v][d+K]+lcp(i+1,k+j+2));
if(i<n)f[v+1][d+K-1]=max(f[v+1][d+K-1],f[v][d+K]+1+lcp(i+2,k+j+1));
if(i<n&&j<m-k)f[v+1][d+K]=max(f[v+1][d+K],f[v][d+K]+1+lcp(i+2,k+j+2));
}
rep(d,-min(K,n-1),min(K,m-n-k)){
bool fl=0;
rep(v,0,K)if(f[v][d+K]>=n){++ans[v];fl=1;break;}
if(!fl)++ans[-d];
}
}
rep(i,0,K)printf("%d\n",ans[i]);
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 6156kb
input:
4 aaa aabbaab
output:
0 5 15 7 1
result:
ok 5 number(s): "0 5 15 7 1"
Test #2:
score: -100
Wrong Answer
time: 907ms
memory: 12856kb
input:
30 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
output:
5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 4 3 2 409220 300465
result:
wrong answer 1st numbers differ - expected: '0', found: '5'