Submission #921347

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
string s[100005];

char aa[400005];
struct node{
    int sz,ind;
    bool isend;
    node* a[26];
    node(){
        sz=ind=0;
        isend=0;
        for(int i=0;i<26;++i)a[i]=this;
    }
    void insrt(int i,int j=0){
        ++sz;
        ind=j;
        if(s[i].size()==j){
            isend=1;
            return;
        }
        int c=s[i][j]-'a';
        if(a[c]==this)a[c]=new node;
        a[c]->insrt(i,j+1);
    }
    bool need(){
        int x=isend;
        for(int i=0;i<26;++i)x+=(a[i]!=this);
        return x==1;
    }
    node *nxt(){
        if(isend)return this;
        for(int i=0;i<26;++i)if(a[i]!=this)return a[i];
    }
    void reduce()
    {
        for(int i=0;i<26;++i){
            if(a[i]==this)continue;
            a[i]->reduce();
            if(a[i]->need())a[i]=a[i]->nxt();
        }
    }
    void dfs()
    {
        cout<<sz<<" "<<ind<<endl;
        for(int i=0;i<26;++i){
            if(a[i]==this)continue;
            cout<<char('a'+i)<<" ";
            a[i]->dfs();
            cout<<endl<<endl;
        }
    }
    int query(int i){
        if(s[i].size()<=ind)return 1;
        int ret=isend;
        for(int j=0;j<26;++j){
            int c=aa[j]-'a';
            if(aa[j]==s[i][ind])return ret+a[c]->query(i);
            if(a[c]!=this)ret+=a[c]->sz;
        }
        return ret;
    }
}*root;

int main()
{
    int n;
    cin>>n;
    root =new node;
    for(int i=1;i<=n;++i){
        scanf("%s",aa);
        s[i]=aa;
        root->insrt(i,0);
    }
    root->reduce();
    int q;
//    root->dfs();
    cin>>q;
    int x;
    while(q--){
        scanf("%d %s",&x,aa);
        printf("%d\n",root->query(x));
    }
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:71:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",aa);
                       ^
./Main.cpp:81:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %s",&x,aa);
                             ^

Judge Result