Language: C++

#include<iostream>
#include<string>
#include<cstdio>
using namespace std;

define M 1046527
define NIL (-1)
define L 14

char H[M][L];

int  getChar(char ch){
    if(ch=='A')return 1;
    else if(ch=='C')return 2;
    else if(ch=='G')return 3;
    else if(ch=='T')return 4;
    else return 0;
}

long long getKey(char str[]){
    long long sum=0,p=1,i;
    for(i=0;i<str.size();i++){
        sum+=p*(getChar(str[i]));
        p*=5;
    }
    return sum;
}

int h1(int key){
    return key%M;
}
int h2(int key){
    return 1+(key%(M-1));
}

int find(char str[]){
    long long key,i,h;
    key=getKey(str);
    for(i=0;;i++){
        h=(h1(key)+i*h2(key))%M;
        if(str.compare(H[h],str)==0)return 1;
        else if(str.size(H[h])==0){
            str.copy(H[h],str);
            return 0;
        }
    }
    return 0;
}

int main(){
    int i,n,h;
    char str[L],com[9];
    for(int i=0;i<M;i++) H[i][0]='\0';
    scanf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%s,%s",com,str);
        if(com[0]=='i'){
            insert(str);
        }else{
            if(find(str)){
                printf("yes\n");
            }else{
                printf("no\n");
            }
        }
    }
    return 0;
}


Compiler output:
a.cc:6:1: error: 'define' does not name a type
    6 | define M 1046527
      | ^~~~~~
a.cc: In function 'long long int getKey(char*)':
a.cc:22:19: error: request for member 'size' in 'str', which is of non-class type 'char*'
   22 |     for(i=0;i<str.size();i++){
      |                   ^~~~
a.cc: In function 'int h1(int)':
a.cc:30:16: error: 'M' was not declared in this scope
   30 |     return key%M;
      |                ^
a.cc: In function 'int h2(int)':
a.cc:33:20: error: 'M' was not declared in this scope
   33 |     return 1+(key%(M-1));
      |                    ^
a.cc: In function 'int find(char*)':
a.cc:40:31: error: 'M' was not declared in this scope
   40 |         h=(h1(key)+i*h2(key))%M;
      |                               ^
a.cc:41:16: error: request for member 'compare' in 'str', which is of non-class type 'char*'
   41 |         if(str.compare(H[h],str)==0)return 1;
      |                ^~~~~~~
a.cc:41:24: error: 'H' was not declared in this scope
   41 |         if(str.compare(H[h],str)==0)return 1;
      |                        ^
a.cc:42:21: error: request for member 'size' in 'str', which is of non-class type 'char*'
   42 |         else if(str.size(H[h])==0){
      |                     ^~~~
a.cc:43:17: error: request for member 'copy' in 'str', which is of non-class type 'char*'
   43 |             str.copy(H[h],str);
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:52:14: error: 'L' was not declared in this scope
   52 |     char str[L],com[9];
      |              ^
a.cc:53:19: error: 'M' was not declared in this scope
   53 |     for(int i=0;i<M;i++) H[i][0]='\0';
      |                   ^
a.cc:53:26: error: 'H' was not declared in this scope
   53 |     for(int i=0;i<M;i++) H[i][0]='\0';
      |                          ^
a.cc:56:27: error: 'str' was not declared in this scope; did you mean 'std'?
   56 |         scanf("%s,%s",com,str);
      |                           ^~~
      |                           std
a.cc:58:13: error: 'insert' was not declared in this scope
   58 |             insert(str);
      |             ^~~~~~