估值一亿的AI核心代码

https://pintia.cn/problem-sets/994805046380707840/problems/1111914599412858885

题解：

/*
*@Author:   STZG
*@Language: C++
*/
#include <bits/stdc++.h>
#include<iostream>
#include<algorithm>
#include<cstdlib>
#include<cstring>
#include<cstdio>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<deque>
#include<stack>
#include<cmath>
#include<list>
#include<map>
#include<set>
//#define DEBUG
#define RI register int
#define endl "\n"
using namespace std;
typedef long long ll;
//typedef __int128 lll;
const int N=100000+10;
const int M=100000+10;
const int MOD=1e9+7;
const double PI = acos(-1.0);
const double EXP = 1E-8;
const int INF = 0x3f3f3f3f;
int t,n,m,k,p,l,r,u,v;
int ans,cnt,flag,temp,sum;
int a[N];
char str[N];
char str1[N];
const char st1[20]="can you";
const char st2[20]="could you";
struct node{};
int main()
{
#ifdef DEBUG
	freopen("input.in", "r", stdin);
	//freopen("output.out", "w", stdout);
#endif
    //ios::sync_with_stdio(false);
    //cin.tie(0);
    //cout.tie(0);
    scanf("%d",&t);
    getchar();
    while(t--){
        memset(str,' ',sizeof(str));
        memset(str1,' ',sizeof(str1));
        cin.getline(str+1,100000,'\n');
        int len=strlen(str+1);
        if(len==0){
            cout<<endl;
            cout<<"AI: "<<endl;
            continue;
        }
        cnt=1;
        int pos=1;
        str1[0]=str[0]=' ';
        while(str[pos]==' ')
            pos++;
        for(int i=pos;i<=len;i++){
            if(str[i-1]==' '&&str[i]==' ')
                continue;
            if(str[i]=='!'||str[i]=='?'||str[i]==','||str[i]=='.'||str[i]=='\''){
                if(str1[cnt-1]==' '&&cnt!=1)cnt--;
                str1[cnt++]=str[i];
                continue;
            }//
            if('A'<=str[i]&&str[i]<='Z'&&str[i]!='I'){
                str1[cnt++]=str[i]+32;
            }else{
                str1[cnt++]=str[i];
            }

        }
        if(str1[cnt-1]==' '&&cnt!=1)
            cnt--;
        str1[cnt]='\0';
        cout<<str+1<<endl;
        cout<<"AI: ";
        for(int i=1;i<cnt;i++){

            if(str1[i]=='?'){
                cout<<'!';
            }else if(str1[i]=='I'&&!isalpha(str1[i-1])&&!isalpha(str1[i+1])){
                cout<<"you";
            }else if(str1[i]=='m'&&i+2<=cnt&&str1[i+1]=='e'&&!isalpha(str1[i+2])&&str1[i-1]==' '){
                cout<<"you";
                i++;
            }else if(str1[i]=='c'&&!isalpha(str1[i-1])){
                if(i+7>cnt){
                    cout<<str1[i];
                    continue;
                }
                int f=1;
                for(int j=0;j<7;j++){
                    if(str1[i+j]!=st1[j]){
                        f=0;
                        break;
                    }
                }
                if(f&&!isalpha(str1[i+7])){
                    cout<<"I can";
                    i+=6;
                    continue;
                }
                if(i+9>cnt){
                    cout<<str1[i];
                    continue;
                }
                f=1;
                for(int j=0;j<9;j++){
                    if(str1[i+j]!=st2[j]){
                        f=0;
                        break;
                    }
                }
                if(f&&!isalpha(str1[i+9])){
                    cout<<"I could";
                    i+=8;
                    continue;
                }
                cout<<str1[i];
            }else{
                cout<<str1[i];
            }
        }
        cout<<endl;
    }

#ifdef DEBUG
	printf("Time cost : %lf s\n",(double)clock()/CLOCKS_PER_SEC);
#endif
    //cout << "Hello world!" << endl;
    return 0;
}