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#853773#8701. BorderChiFANCompile Error//C++984.5kb2025-01-11 19:11:112025-01-11 19:11:12

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  • [2025-01-11 19:11:12]
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  • [2025-01-11 19:11:11]
  • 提交

answer

#include<bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")
using namespace std;
const int mod = 1e9+7;
const int inv = (mod+1)/2;
const int Mod = 1e9+9;
const int base = 1331;
const int maxn = 2e6+4;
int _pow[maxn];
int to[26];
int ch[26];
inline int qpow(int a,int b){
    int res=1;
    for(int i=0;i<31;i++){
        if((1ll<<i)&b) res=1ll*res*a%mod;
        a=1ll*a*a%mod;
    }
    return res;
}
int S[maxn],T[maxn],P[maxn],v1[maxn],v2[maxn],v3[maxn],v4[maxn];
vector<int> solve(string s,string t){
    vector<int> ans;
    int n=s.size();
    for(int i=1;i<=n;i++) S[i]=to[s[i-1]-'a'],T[i]=to[t[i-1]-'a'],P[i]=ch[s[i-1]-'a'];
    ans.resize(n+1);
    for(int i=1;i<=n;i++){
        v1[i]=(1ll*v1[i-1]+S[i])%mod;
        v2[i]=(1ll*v2[i-1]+1ll*S[i]*S[i]%mod)%mod;
        v3[i]=(1ll*v3[i-1]+1ll*S[i]*i%mod)%mod;
        v4[i]=(1ll*v4[i-1]+1ll*P[i]*_pow[i]%Mod)%Mod;
    }
    array<int,maxn> suf;
    for(int i=1;i<n;i++){
        int pos=0;
        bool flag=true;
        for(int j=2;i*(j-1)+1<=n;j++){
            int L=(j-1)*i+1,R=j*i;
            int l=1,r=i;
            if(R>n){
                int c=R-n;
                R-=c,r-=c;
            }
            if((1ll*v1[r]+mod-v1[l-1])%mod==(1ll*v1[R]+mod-v1[L-1])%mod&&(1ll*v3[r]+mod-v3[l-1])%mod==((1ll*v3[R]+mod-v3[L-1])%mod+mod-1ll*(L-l)*((1ll*v1[R]+mod-v1[L-1])%mod)%mod)%mod) continue;
            else{
                if(pos!=0){
                    flag=false;
                    break;
                }
                int c1=(1ll*v2[r]+v2[L-1]+2*mod-v2[l-1]-v2[R])%mod,c2=(1ll*v1[r]+v1[L-1]+2*mod-v1[l-1]-v1[R])%mod;
                c1=1ll*c1*qpow(c2,mod-2)%mod;
                int x=(1ll*c1+c2)%mod*inv%mod;
                int y=(1ll*c1+mod-c2)%mod*inv%mod;
                int c3=(1ll*v3[R]+mod-v3[L-1])%mod;
                c3=(1ll*c3+mod-1ll*(L-l)*((1ll*v1[R]+mod-v1[L-1])%mod)%mod)%mod;
                int p=1ll*(((1ll*v3[r]+mod-v3[l-1])%mod+mod-c3)%mod)*qpow((1ll*x+mod-y)%mod,mod-2)%mod;
                if(p<1||p>n){
                    flag=false;
                    break;
                }
                if(S[p]!=x){
                    flag=false;
                    break;
                }
                if(p+(L-l)>n){
                    flag=false;
                    break;
                }
                if(S[p+(L-l)]!=y){
                    flag=false;
                    break;
                }
                if(T[p+(L-l)]!=x){
                    flag=false;
                    break;
                }
                //[l,p-1] [L,p-1+L-l]
                if((1ll*v4[p-1]+Mod-v4[l-1])*_pow[L-l]%Mod!=(1ll*v4[p-1+L-l]+Mod-v4[L-1])%Mod){
                    flag=false;
                    break;
                }
                //[p+1,r] [p+1+L-l,R]
                if((1ll*v4[r]+Mod-v4[p])%Mod*_pow[L-l]%Mod!=(1ll*v4[R]+Mod-v4[p+L-l])%Mod){
                    flag=false;
                    break;
                }
                if(pos==0) pos=p+(L-l);
                else{
                    flag=false;
                    break;
                }
            }
        }
        if(flag==false) continue;
        if(pos!=0){
            ans[pos]=max(ans[pos],n-i);
        }else if(i*2>=n){
            suf[i]=max(suf[i],n-i);
        }
    }
    for(int i=n-1;i>=1;i--) suf[i]=max(suf[i],suf[i+1]);
    for(int i=1;i<=n;i++) ans[i]=max(ans[i],suf[max(i,n-i+1)]);
    return ans;
}
bool check(){
    for(int i=0;i<26;i++){
        for(int j=0;j<i;j++){
            if(ch[i]==ch[j]||to[i]==to[j]) return false;
        }
    }
    return true;
}
int main(){
    srand(time(0));
    while(check()==false) for(int i=0;i<26;i++) to[i]=1ll*rand()%mod,ch[i]=1ll*rand()%Mod;
    _pow[0]=1;
    for(int i=1;i<maxn;i++) _pow[i]=1ll*_pow[i-1]*base%Mod;
    ios::sync_with_stdio(0);
    cin.tie(0),cout.tie(0);
    string s,t;
    cin>>s>>t;
    vector<int> ans=solve(s,t);
    reverse(s.begin(),s.end());
    reverse(t.begin(),t.end());
    vector<int> oth=solve(s,t);
    reverse(oth.begin(),oth.end());
    vector<int> nxt;
    nxt.resize(s.size());
    reverse(s.begin(),s.end());
    reverse(t.begin(),t.end());
    nxt[0]=-1;
    for(int i=1;i<s.size();i++){
        int z=nxt[i-1];
        while(s[z+1]!=s[i]&&z>-1) z=nxt[z];
        if(s[z+1]==s[i]) z++;
        nxt[i]=z;
    }
    for(int i=0;i<s.size();i++){
        if(s[i]==t[i]) cout<<nxt[s.size()-1]+1<<'\n';
        else cout<<max(ans[i+1],oth[i])<<'\n';
    }
    return 0;
}

詳細信息

answer.code: In function ‘std::vector<int> solve(std::string, std::string)’:
answer.code:32:5: error: ‘array’ was not declared in this scope
   32 |     array<int,maxn> suf;
      |     ^~~~~
answer.code:32:5: note: ‘std::array’ is only available from C++11 onwards
answer.code:32:11: error: expected primary-expression before ‘int’
   32 |     array<int,maxn> suf;
      |           ^~~
answer.code:97:13: error: ‘suf’ was not declared in this scope
   97 |             suf[i]=max(suf[i],n-i);
      |             ^~~
answer.code:100:29: error: ‘suf’ was not declared in this scope
  100 |     for(int i=n-1;i>=1;i--) suf[i]=max(suf[i],suf[i+1]);
      |                             ^~~
answer.code:101:45: error: ‘suf’ was not declared in this scope
  101 |     for(int i=1;i<=n;i++) ans[i]=max(ans[i],suf[max(i,n-i+1)]);
      |                                             ^~~