criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string S;
  cin >> S;
  for (int i = 0; i < S.size(); i++){
    for (i % 2 == 1){
      if (S.at(i) == h){
      }
      else {
        break;
      }
    }
    for (i % 2 == 0){
      if (S.at(i) == i){
      }
      else {
        break;
      }
    }
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: expected ';' before ')' token
    8 |     for (i % 2 == 1){
      |                    ^
      |                    ;
a.cc:15:5: error: expected primary-expression before 'for'
   15 |     for (i % 2 == 0){
      |     ^~~
a.cc:14:6: error: expected ';' before 'for'
   14 |     }
      |      ^
      |      ;
   15 |     for (i % 2 == 0){
      |     ~~~
a.cc:15:5: error: expected primary-expression before 'for'
   15 |     for (i % 2 == 0){
      |     ^~~
a.cc:14:6: error: expected ')' before 'for'
   14 |     }
      |      ^
      |      )
   15 |     for (i % 2 == 0){
      |     ~~~
a.cc:8:9: note: to match this '('
    8 |     for (i % 2 == 1){
      |         ^
a.cc:15:20: error: expected ';' before ')' token
   15 |     for (i % 2 == 0){
      |                    ^
      |                    ;
a.cc:22:3: error: expected primary-expression before '}' token
   22 |   }
      |   ^
a.cc:21:6: error: expected ';' before '}' token
   21 |     }
      |      ^
      |      ;
   22 |   }
      |   ~   
a.cc:22:3: error: expected primary-expression before '}' token
   22 |   }
      |   ^
a.cc:21:6: error: expected ')' before '}' token
   21 |     }
      |      ^
      |      )
   22 |   }
      |   ~   
a.cc:15:9: note: to match this '('
   15 |     for (i % 2 == 0){
      |         ^
a.cc:22:3: error: expected primary-expression before '}' token
   22 |   }
      |   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string S;
  cin >> S;
  std::string S;
  if (s.find("hi") != std::string::npos) {
   puts("Yes");
  }
  else{
   puts("No");
  }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: redeclaration of 'std::string S'
    7 |   std::string S;
      |               ^
a.cc:5:10: note: 'std::string S' previously declared here
    5 |   string S;
      |          ^
a.cc:8:7: error: 's' was not declared in this scope
    8 |   if (s.find("hi") != std::string::npos) {
      |       ^
Language: C++

/*
 *  Created on: 1 / 5 / 2020
 *  Author:     Eslam Waheed
 */
#include <bits/stdc++.h>
//#include <bits/BIGINT.h>
//#include <bits/Int128.h>
using namespace std;

//#define _CRT_SECURE_NO_WARNINGS
//#define __USE_MINGW_ANSI_STDIO
#define Eslam__Waheed ios_base::sync_with_stdio(false);cout.tie(NULL);cin.tie(NULL);

#define ll   long long
#define ull  unsigned ll
#define dd   double
#define ld   long dd
#define ss   string

#define pb      push_back
#define all(c)  c.begin(), c.end()
#define rall(c) c.rbegin(), c.rend()
#define stp(n)  cout << fixed << setprecision(n)
#define iq(v)   v.resize(unique(v.begin(),v.end())-v.begin())
#define sz(s)   (ll)(s.size())
#define endl    '\n'

#define loop(i,m,n)  for(ll i=m;i<n;i++)

ll gcd(ll a, ll b) { return !b ? abs(a) : gcd(b, a % b); }
ll lcm(ll a, ll b) { return abs(a / gcd(a, b)) * b; }

//const ll mod = 1e9 + 7;
//__int128
/*
 you can ^_^ (•‿•)

( إن الله وملائكته يصلون على النبي يا أيها الذين آمنوا صلوا عليه وسلموا تسليما )
*/
int main()
{
    //stp(0);
    Eslam__Waheed
    ss s; cin >> s;
    ll c = count(all(s), "hi");
    cout << ((c * 2 == sz(s)) ? "Yes" : "No");
}

Compiler output:
In file included from /usr/include/c++/14/bits/stl_algobase.h:71,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:5:
/usr/include/c++/14/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_equals_val<_Value>::operator()(_Iterator) [with _Iterator = __gnu_cxx::__normal_iterator<char*, std::__cxx11::basic_string<char> >; _Value = const char [3]]':
/usr/include/c++/14/bits/stl_algobase.h:2163:12:   required from 'typename std::iterator_traits< <template-parameter-1-1> >::difference_type std::__count_if(_InputIterator, _InputIterator, _Predicate) [with _InputIterator = __gnu_cxx::__normal_iterator<char*, __cxx11::basic_string<char> >; _Predicate = __gnu_cxx::__ops::_Iter_equals_val<const char [3]>; typename iterator_traits< <template-parameter-1-1> >::difference_type = long int]'
 2163 |         if (__pred(__first))
      |             ~~~~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:4033:29:   required from 'typename std::iterator_traits< <template-parameter-1-1> >::difference_type std::count(_IIter, _IIter, const _Tp&) [with _IIter = __gnu_cxx::__normal_iterator<char*, __cxx11::basic_string<char> >; _Tp = char [3]; typename iterator_traits< <template-parameter-1-1> >::difference_type = long int]'
 4033 |       return std::__count_if(__first, __last,
      |              ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
 4034 |                              __gnu_cxx::__ops::__iter_equals_val(__value));
      |                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:45:17:   required from here
   45 |     ll c = count(all(s), "hi");
      |            ~~~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/predefined_ops.h:270:24: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
  270 |         { return *__it == _M_value; }
      |                  ~~~~~~^~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    string S;
    cin >> S;
    bool a=true;
    if(S.size()%2==1) a=false;
    else for(int i=0;i<S.size()/2;i++){
        if(S.at(i*2)!='h'||S.at(i*2+1)!='i')) a=false;
    }
    if(a)cout << "Yes" << endl;
    else cout << "No" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:45: error: expected primary-expression before ')' token
   10 |         if(S.at(i*2)!='h'||S.at(i*2+1)!='i')) a=false;
      |                                             ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
 int i,n;
 string s,t;
 t="";
 cin >> s;
 n=s.length();
 if(n%2)
 {
  cout << "No";
  return 0;
 }
 for(i=0;i<(n/2);i++)
 t.append("hi");
 if(t==s)
 cout << "Yes"
 else
 cout << "No";
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:15: error: expected ';' before 'else'
   18 |  cout << "Yes"
      |               ^
      |               ;
   19 |  else
      |  ~~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
  string s;
  int l,it,c=0;
  cin>>s;
  l=s.length();
  for(it=0;it<l;it=i+2)
  {
    if(s[it]=='h'&&s[it+1]=='i')
    {
      c++;
    }
  }
  if(c==l/2)
    cout<<"Yes"<<endl;
  else
    cout<<"No"<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: 'i' was not declared in this scope
    9 |   for(it=0;it<l;it=i+2)
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string s;
  cin>>s;
  string k="";
  for(int i=0;i<5;i++){
    k += "hi";
    if(s==k){
      cout<<"Yes"<<endl;
      return;
    }
  }
  cout<<"No"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:7: error: return-statement with no value, in function returning 'int' [-fpermissive]
   12 |       return;
      |       ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string s;
  cin>>s;
  int k=s.size()/2;
  if(s[0]=='h' ||s[1]=='i'){
    for(int i=0;i<k+1;i++){
      if(s[0]==s[2k]||s[1]==s[2k+1]){
        continue;
      }
      else{
        return;
      }
    }
  }
  else{
    return;
  }
  cout<<"Yes"<<endl;
}
int bad(){
  cout<<"No"<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: fixed-point types not supported in C++
   10 |       if(s[0]==s[2k]||s[1]==s[2k+1]){
      |                  ^~
a.cc:10:31: error: fixed-point types not supported in C++
   10 |       if(s[0]==s[2k]||s[1]==s[2k+1]){
      |                               ^~
a.cc:14:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   14 |         return;
      |         ^~~~~~
a.cc:19:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   19 |     return;
      |     ^~~~~~
a.cc: In function 'int bad()':
a.cc:25:1: warning: no return statement in function returning non-void [-Wreturn-type]
   25 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
char s[101010];
int main() {
  in >> s;
  int n = strlen(s);
  if (n % 2) {
    cout << "No";
    return 0;
  }
  bool ok = true;
  for (int i = 0; i < n; ++i) {
    ok &= i % 2 ? s[i] == 'i' : s[i] == 'h';
  }
  cout << (ok ? "Yes" : "No");
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'in' was not declared in this scope; did you mean 'yn'?
    5 |   in >> s;
      |   ^~
      |   yn
Language: C++

#include <bits/stdc++.h>
using namespace std;
char str[101010];
int main() {
  in >> str;
  int n = strlen(str);
  if (n % 2) {
    cout << "No";
    return 0;
  }
  bool ok = true;
  for (int i = 0; i < n; ++i) {
    ok &= i % 2 ? s[i] == 'i' : s[i] == 'h';
  }
  cout << (ok ? "Yes" : "No");
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'in' was not declared in this scope; did you mean 'yn'?
    5 |   in >> str;
      |   ^~
      |   yn
a.cc:13:19: error: 's' was not declared in this scope
   13 |     ok &= i % 2 ? s[i] == 'i' : s[i] == 'h';
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
char str[N];
int main() {
  in >> str;
  int n = strlen(str);
  if (n % 2) {
    cout << "No";
    return 0;
  }
  bool ok = true;
  for (int i = 0; i < n; ++i) {
    ok &= i % 2 ? s[i] == 'i' : s[i] == 'h';
  }
  cout << (ok ? "Yes" : "No");
  return 0;
}

Compiler output:
a.cc:3:10: error: 'N' was not declared in this scope
    3 | char str[N];
      |          ^
a.cc: In function 'int main()':
a.cc:5:3: error: 'in' was not declared in this scope; did you mean 'yn'?
    5 |   in >> str;
      |   ^~
      |   yn
a.cc:5:9: error: 'str' was not declared in this scope; did you mean 'std'?
    5 |   in >> str;
      |         ^~~
      |         std
a.cc:13:19: error: 's' was not declared in this scope
   13 |     ok &= i % 2 ? s[i] == 'i' : s[i] == 'h';
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
	string s;
  	cin >> s;
  	if (s.length() % 2) printf("No"), return 0;
  	long long h = 0, i = 0;
  	for (int i = 0; i < s.length(); i++) {
		if (i % 2) {
        	if (s[i] != 'i') {
             	cout << "No";
              return 0;
            }
        } else {
          if (s[i] != 'h') {
             	cout << "No";
              return 0;
            }
        }
    }
  cout << "Yes";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:43: error: expected primary-expression before 'return'
    7 |         if (s.length() % 2) printf("No"), return 0;
      |                                           ^~~~~~
Language: C++

S=input()
flg = True
for i in range(len(S)):
    if len(S)%2 == 1:
        flg = False
        break
    if i%2==0:
        if S[i]+S[i+1] != "hi":
            flg = False

if flg == True:
    print("Yes")
else:
    print("No")

Compiler output:
a.cc:1:1: error: 'S' does not name a type
    1 | S=input()
      | ^
Language: Java

import java.util.Scanner;
import java.lang.Math;
class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = sc.nextline();

        char[] c = s.toCharArray();

        if(c.length/2*2 != c.length){
            System.out.println("No");
        }else{
            int check=0;
            for(int i = 0; i<c.length/2;i++){
                if(c[2*i] != "h" || c[2*i+1] != "i"){
                    check++;
                }
                if(check!=0){
                    System.out.println("No");
                }else{
                    System.out.println("Yes");
                }
            }
        }

    }
}

Compiler output:
Main.java:6: error: cannot find symbol
        String s = sc.nextline();
                     ^
  symbol:   method nextline()
  location: variable sc of type Scanner
Main.java:15: error: bad operand types for binary operator '!='
                if(c[2*i] != "h" || c[2*i+1] != "i"){
                          ^
  first type:  char
  second type: String
Main.java:15: error: bad operand types for binary operator '!='
                if(c[2*i] != "h" || c[2*i+1] != "i"){
                                             ^
  first type:  char
  second type: String
3 errors
Language: C++

#include <iostream>
#include <cstring>

using namespace std;

int main(){
 	string s; cin >> s;
  int cur = 'h';
  for(auto c: s){
  	if(c!=cur){
    	cout << "No\n"; return 0;
    }
    cur = (cur=='h') ? 'i' : 'h';
  }
  cout << "Yes\n"; =
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:20: error: expected primary-expression before '=' token
   15 |   cout << "Yes\n"; =
      |                    ^
a.cc:16:5: error: expected primary-expression before 'return'
   16 |     return 0;
      |     ^~~~~~
Language: C++

use std::io::*;
use std::str::FromStr;

fn read<T: FromStr>() -> T {
    let stdin = stdin();
    let stdin = stdin.lock();
    let token: String = stdin
        .bytes()
        .map(|c| c.expect("failed to read char") as char) 
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().expect("failed to parse token")
}

fn main() {
    let s: Vec<char> = read::<String>().chars().collect();
    let l = s.len();
    for i in 0..l {
        if i % 2 == 0 && s[i] != 'h' {
            println!("No");
            return;
        } else if i % 2 == 1 && s[i] != 'i' {
            println!("No");
            return;
        }
    }
    println!("Yes");
}


Compiler output:
a.cc:19:14: error: too many decimal points in number
   19 |     for i in 0..l {
      |              ^~~~
a.cc:1:1: error: 'use' does not name a type
    1 | use std::io::*;
      | ^~~
a.cc:2:1: error: 'use' does not name a type
    2 | use std::str::FromStr;
      | ^~~
a.cc:4:1: error: 'fn' does not name a type
    4 | fn read<T: FromStr>() -> T {
      | ^~
a.cc:16:1: error: 'fn' does not name a type
   16 | fn main() {
      | ^~
Language: C++

#include<bits/stdc++>
using namespace std;
int main()
{  string str;
   cin>>str;
 if(str.size()%2!=0)
 {cout<<"No";exit(0);}
 else
 {  for(int i=0;i<str.size();i++)
 {  if(i%2==0)
 {  if(str[i]!='h')
 {cout<<"No";exit(0);}
 }
  else
  {if(str[i]!='i')
  {cout<<"No";exit(0);}}
 }cout<<"Yes";
 }

   

 
  
  
  
  
  
  
  
}

Compiler output:
a.cc:1:9: fatal error: bits/stdc++: No such file or directory
    1 | #include<bits/stdc++>
      |         ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string u;
  char * h,i;
  int len,deff = 0;
  cin >> u;
  h = 'h';
  i = 'i';
  len = u.length();
  if (len % 2 == 1)
  {
    deff = 1;
  }
  for (int i = 0; i < len; ++i)
  {
    if (i % 2 == 0) {
      if (u[i] != h) {
        deff = 1;
      } 
    } else {
      if (u[i] != i) {
        deff = 1;
      } 
    }
  }
  if (deff == 0)
  {
    cout << "Yes";
  } else {
    cout << "No";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: invalid conversion from 'char' to 'char*' [-fpermissive]
    9 |   h = 'h';
      |       ^~~
      |       |
      |       char
a.cc:19:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |       if (u[i] != h) {
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string u;
  char * h,i;
  int len,deff = 0;
  cin >> u;
  h = "h";
  i = "i";
  len = u.length();
  if (len % 2 == 1)
  {
    deff = 1;
  }
  for (int i = 0; i < len; ++i)
  {
    if (i % 2 == 0) {
      if (u[i] != h) {
        deff = 1;
      } 
    } else {
      if (u[i] != i) {
        deff = 1;
      } 
    }
  }
  if (deff == 0)
  {
    cout << "Yes";
  } else {
    cout << "No";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
    9 |   h = "h";
      |       ^~~
a.cc:10:7: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   10 |   i = "i";
      |       ^~~
      |       |
      |       const char*
a.cc:19:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |       if (u[i] != h) {
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string u;
  char* h,i;
  int len,deff = 0;
  cin >> u;
  h = "h";
  i = "i";
  len = u.length();
  if (len % 2 == 1)
  {
    deff = 1;
  }
  for (int i = 0; i < len; ++i)
  {
    if (i % 2 == 0) {
      if (u[i] != h) {
        deff = 1;
      } 
    } else {
      if (u[i] != i) {
        deff = 1;
      } 
    }
  }
  if (deff == 0)
  {
    cout << "Yes";
  } else {
    cout << "No";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
    9 |   h = "h";
      |       ^~~
a.cc:10:7: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   10 |   i = "i";
      |       ^~~
      |       |
      |       const char*
a.cc:19:16: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |       if (u[i] != h) {
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string u;
  char h,i;
  int len,deff = 0;
  cin >> u;
  h = "h";
  i = "i";
  len = u.length();
  if (len % 2 == 1)
  {
    deff = 1;
  }
  for (int i = 0; i < len; ++i)
  {
    if (i % 2 == 0) {
      if (u[i] != h) {
        deff = 1;
      } 
    } else {
      if (u[i] != i) {
        deff = 1;
      } 
    }
  }
  if (deff == 0)
  {
    cout << "Yes";
  } else {
    cout << "No";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
    9 |   h = "h";
      |       ^~~
      |       |
      |       const char*
a.cc:10:7: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   10 |   i = "i";
      |       ^~~
      |       |
      |       const char*
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string u;
  char h,i;
  int len,deff = 0;
  cin >> u;
  *h = "h";
  *i = "i";
  len = u.length();
  if (len % 2 == 1)
  {
    deff = 1;
  }
  for (int i = 0; i < len; ++i)
  {
    if (i % 2 == 0) {
      if (u[i] != h) {
        deff = 1;
      } 
    } else {
      if (u[i] != i) {
        deff = 1;
      } 
    }
  }
  if (deff == 0)
  {
    cout << "Yes";
  } else {
    cout << "No";
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: invalid type argument of unary '*' (have 'char')
    9 |   *h = "h";
      |   ^~
a.cc:10:3: error: invalid type argument of unary '*' (have 'char')
   10 |   *i = "i";
      |   ^~
Language: C++

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

int main() {
  string s;
  cin >> s;
  int l = s.size();
  bool hi = false
  for (int i = 0; i < l - 1; ++i) {
    if (s[i] == 'h' && s[i + 1] == 'i') {
      hi = true;
      break;
    }
  }
  if (hi) cout << "Yes\n";
  else cout << "No\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: expected ',' or ';' before 'for'
   10 |   for (int i = 0; i < l - 1; ++i) {
      |   ^~~
a.cc:10:19: error: 'i' was not declared in this scope; did you mean 'hi'?
   10 |   for (int i = 0; i < l - 1; ++i) {
      |                   ^
      |                   hi
Language: C++

//int a = stoi(c); 文字列をintへ
//小文字から大文字
//transform(a.begin(), a.end(), a.begin(), ::toupper);
//途中の出力をそのまま残さない
//数値計算 個数以外はdouble
//map<キー,値> p は辞書。p[キー] = 値
//map 全探索
//auto begin = p.begin(), end = p.end();
//for (auto it = begin; it != end; it++) {}
//mapのキー：it->first mapのバリュー：it->second
//絶対値 abs()
//入力は空白で切れる
//大文字判定 isupper(文字) 小文字判定 islower(文字)
//do{}while(next_permutation(ALL(配列)))
//while(N)で回すとき、Nはコピーを作っておく
//小文字に対応する文字コード：S[i] - 'a'
//文字コード→小文字：(char)(数字+'a')
//グラフの距離:隣接行列で扱う
//等価なものに変換する思考
//bool型　初期値はTrue
//島渡りの問題：中間ノードに着目
//配列はvector<>を使う：意味わからないエラーがなくなる。
//背反な事象にちゃんとわける
//チェックリストはマップを使う
//数が大きい時の比較はstring型で行う
//全て0になったか調べたい->0になるたびにcntする
//またはかかつか
//例外処理は最初にする
#include <bits/stdc++.h>
#define rep(i,N) for(int i = 0; i < N;i++)
#define ALL(a) (a).begin(),(a).end()
#define ll long long int
using namespace std;

//円周率
const double PI = 3.14159265358979323846;
//割るやつ
const ll M = (pow(10, 9) + 7);

// K進数でのNの桁数
ll dig(ll N, ll K) {
	ll dig = 0;
	while (N) {
		dig++;
		N /= K;
	}
	return dig;
}
// a,bの最大公約数
ll gcd(ll a, ll b) {
	if (b == 0) return a;
	return gcd(b, a%b);
}

ll lcm(ll a, ll b) {
	ll g = gcd(a, b);
	return a / g * b;
}

//nC2の計算
ll C(ll N) {
	return N * (N - 1) / 2;
}

//階乗計算
ll f(ll n) {
	if (n == 0 || n == 1) return 1;
	else return (n * f(n - 1)) % M;
}

int main() {
	string s; cin >> s;

	if (s.size() % 2 == 1) {
		cout << "No" << endl;
		return 0;
	}

	rep(i.size() / 2) {
		if (s[2 * i] != 'h' || s[2 * i + 1] != 'i') {
			cout << "No" << endl;
			return 0;
		}
	}

	cout << "Yes" << endl;
}

Compiler output:
a.cc:79:25: error: macro "rep" requires 2 arguments, but only 1 given
   79 |         rep(i.size() / 2) {
      |                         ^
a.cc:30:9: note: macro "rep" defined here
   30 | #define rep(i,N) for(int i = 0; i < N;i++)
      |         ^~~
a.cc: In function 'int main()':
a.cc:79:9: error: 'rep' was not declared in this scope
   79 |         rep(i.size() / 2) {
      |         ^~~
Language: C

#include<stdio.h>

int main (void)
{
int i = 0;
char a[11];

do
{
if('a[i]' == 'h')
i++;
else 
i += 1000;
if('a[i]' == 'i')
i++;
else
i += 1000;
}while(i<999)

if(i<999)
printf("Yes");
else
printf("No");

return 0;
}


Compiler output:
main.c: In function 'main':
main.c:10:4: warning: multi-character character constant [-Wmultichar]
   10 | if('a[i]' == 'h')
      |    ^~~~~~
main.c:14:4: warning: multi-character character constant [-Wmultichar]
   14 | if('a[i]' == 'i')
      |    ^~~~~~
main.c:18:14: error: expected ';' before 'if'
   18 | }while(i<999)
      |              ^
      |              ;
   19 | 
   20 | if(i<999)
      | ~~            
main.c:22:1: error: 'else' without a previous 'if'
   22 | else
      | ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;

#define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
typedef long long ll;
//typedef long long int;
const ll M = 1000000007;
ll A, B, C, D, G, H, N, L, K, P, Q, R, W, X, Y, Z;
string S, T;

int flag=0;
signed main(){
	std::cin >>S ;
  REP(i,len(s)){
    if(i%2==0&&s(i)!=h)
    	{flag++;
      	break;}
    else if (i%2==1&&s(i)!=i)
    	{flag++;
      	break;}
  	}
  if (flag==0) cout<<"Yes"<<endl;
  else cout<<"No"<<endl;
  
}



Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 's' was not declared in this scope
   14 |   REP(i,len(s)){
      |             ^
a.cc:4:40: note: in definition of macro 'REP'
    4 | #define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:14:9: error: 'len' was not declared in this scope; did you mean 'i_len'?
   14 |   REP(i,len(s)){
      |         ^~~
a.cc:4:40: note: in definition of macro 'REP'
    4 | #define REP(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:15:22: error: 'h' was not declared in this scope
   15 |     if(i%2==0&&s(i)!=h)
      |                      ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int) n; i++)
using ll = long long;
template <class T>
using vt = vector<T>;
using vvi = vector<vector<int>>;

void svtr(vector<int> &a){
  sort(a.begin(),a.end());
  reverse(a.begin(),a.end());
}

int main() {
  string s;
  cin >> s;

  if(s.size()%2==1){
    cout << "No";
    return 0;
  }

  rep(j,s.size()){
    if(s[j]=='h' && i%2==0)
      continue;
    if(s[j]=='i' && i%2==1)
      continue;
    else{
      cout << "No";
      return 0;
    }
  }

  cout << "Yes";
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:21: error: 'i' was not declared in this scope
   24 |     if(s[j]=='h' && i%2==0)
      |                     ^
a.cc:26:21: error: 'i' was not declared in this scope
   26 |     if(s[j]=='i' && i%2==1)
      |                     ^
Language: C++

/*
          ,     \    /      ,
         / \    )\__/(     / \
        /   \  (_\  /_)   /   \
   ____/_____\__\@  @/___/_____\____
  |             |\../|              |
  |              \VV/               |
  |        ------hoi-------         |
  |_________________________________|
   |    /\ /      \\       \ /\    |
   |  /   V        ))       V   \  |
   |/     `       //        '     \|
   `              V                '
*/

#include <bits/stdc++.h>

#define ld long double
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define f first
#define se second
#define Speedforce boost();
#define fop(s1, s2) freopen(s1, "r", stdin);freopen(s2, "w", stdout);

using namespace std;

void boost(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}

const int N = 1e6;
const ll inf = 1e9 + 7;
const ld PI = acos(-1);

ll bin_pow(ll x, ll y){
    ll res = 1, base = x;
    while(y){
        if(y & 1){
            res *= base;
            res %= inf;
        }
        base *= base;
        base %= inf;
        y /= 2;
    }
    return res;
}

string s;

int main(){
    Speedforce
    //fop("", "")
    cin >> s;
    for(int i = 0;i < s.size();i ++){
        if((i & 1) && s[i] != 'i'){
            cout << "No";
            return 0;
        }
        if(!(i & 1) && s[i] != 'h'){
            cout << "No";
            return 0;
        }
    }
    if(s[i].size() & 1){
        cout << "No";
        return 0;
    }
    cout << "Yes";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:70:10: error: 'i' was not declared in this scope
   70 |     if(s[i].size() & 1){
      |          ^
Language: C++

	string str;
	cin>>str;
	char ch='h';
	int count = 0;
	for(int i = 0; i < str.length(); i++) {
		if(str[i]==ch) {
			count++;
			if(ch=='h')
				ch='i';
			else
				ch='h';		
		}
	}					
	if(str.length()/2+str.length()%2==count/2)
		cout<<"Yes";
	else
		cout<<"No";						

Compiler output:
a.cc:1:9: error: 'string' does not name a type
    1 |         string str;
      |         ^~~~~~
a.cc:2:9: error: 'cin' does not name a type
    2 |         cin>>str;
      |         ^~~
a.cc:5:9: error: expected unqualified-id before 'for'
    5 |         for(int i = 0; i < str.length(); i++) {
      |         ^~~
a.cc:5:24: error: 'i' does not name a type
    5 |         for(int i = 0; i < str.length(); i++) {
      |                        ^
a.cc:5:42: error: 'i' does not name a type
    5 |         for(int i = 0; i < str.length(); i++) {
      |                                          ^
a.cc:14:9: error: expected unqualified-id before 'if'
   14 |         if(str.length()/2+str.length()%2==count/2)
      |         ^~
a.cc:16:9: error: expected unqualified-id before 'else'
   16 |         else
      |         ^~~~
Language: C++

int main() {
  string s;
  cin >> s;
  string hi = "";
  for(int i=0;i<5;i++){
    hi += "hi";
      if(hi == s)
        cout << "Yes" << endl;
      else
        continue;
    
  }
  cout << "No" << endl; 
      
}
        
        

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'string' was not declared in this scope
    2 |   string s;
      |   ^~~~~~
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> s;
      |   ^~~
a.cc:3:10: error: 's' was not declared in this scope
    3 |   cin >> s;
      |          ^
a.cc:4:9: error: expected ';' before 'hi'
    4 |   string hi = "";
      |         ^~~
      |         ;
a.cc:6:5: error: 'hi' was not declared in this scope; did you mean 'i'?
    6 |     hi += "hi";
      |     ^~
      |     i
a.cc:8:9: error: 'cout' was not declared in this scope
    8 |         cout << "Yes" << endl;
      |         ^~~~
a.cc:8:26: error: 'endl' was not declared in this scope
    8 |         cout << "Yes" << endl;
      |                          ^~~~
a.cc:13:3: error: 'cout' was not declared in this scope
   13 |   cout << "No" << endl;
      |   ^~~~
a.cc:13:19: error: 'endl' was not declared in this scope
   13 |   cout << "No" << endl;
      |                   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
typedef long long ll;

int main() {
  string s; cin >> s;
  if (s.length() % 2) {
    cout << "No" << endl;
    return 0;
  }
  int tmp = 0;
  while (tmp + 1 < s.length()) {
    if (s[tmp] == 'h' && s[tmp+1] == 'i') {
      tmp += 2;
    }
    else {
      cout << "No" << endl;
      return 0;
    }
    cout << "Yes" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:2: error: expected '}' at end of input
   23 | }
      |  ^
a.cc:7:12: note: to match this '{'
    7 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
  string s;
  cin>>s;
  int flag1=0,flag2=1;
  for(int i=0;i<s.length();i+=2)
  {
    if(i%2==0&&s[i]!='h')
    {
      flag1=0;break;
    }
    if(i%2!=0&&s[i)!='i)
    {
      flag2=0;break;
    }
  }
  if(flag1&&flag2)
         cout<<"Yes"<<endl;
  else
         cout<<"No"<<endl;
  return 0;
}

Compiler output:
a.cc:14:22: warning: missing terminating ' character
   14 |     if(i%2!=0&&s[i)!='i)
      |                      ^
a.cc:14:22: error: missing terminating ' character
   14 |     if(i%2!=0&&s[i)!='i)
      |                      ^~~
a.cc: In function 'int main()':
a.cc:14:19: error: expected ']' before ')' token
   14 |     if(i%2!=0&&s[i)!='i)
      |                   ^
      |                   ]
a.cc:14:20: error: expected primary-expression before '!=' token
   14 |     if(i%2!=0&&s[i)!='i)
      |                    ^~
a.cc:15:5: error: expected primary-expression before '{' token
   15 |     {
      |     ^
Language: Java


import java.util.Scanner;

public class HitString {

	public static void main(String[] args) 
	{
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		
		if(s.length()%2 != 0)
		{
			System.out.println("No");
			return;
		}
			
		for(int i = 0; i < s.length(); i++)
		{
			if(i%2 == 0)
			{
				if(s.charAt(i) != 'h')
				{
					System.out.println("No");
					return;
				}
			}
			else
			{
				if(s.charAt(i) != 'i')
				{
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");

	}

}


Compiler output:
Main.java:4: error: class HitString is public, should be declared in a file named HitString.java
public class HitString {
       ^
1 error
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main() {
  string s;
  cin >> s;
  for (int i=0; i<n; i+=2) {
    if (i == n-1 || s.at(i) != 'h' || s.at(i+1) != 'i') {
      cout << "No" << endl;
      return 0;
    }
  }
  cout << "Yes" << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: 'n' was not declared in this scope
    9 |   for (int i=0; i<n; i+=2) {
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

int main() {
  string S ;
  cin >> S ;
  if ( s == "hi" ||s== "hihi" || s=="hihihi" || s=="hihihihi" ||s=="hihihihihi")
    cout <<"Yes" << endl ;
  else cout <<"No" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: 's' was not declared in this scope
    7 |   if ( s == "hi" ||s== "hihi" || s=="hihihi" || s=="hihihihi" ||s=="hihihihihi")
      |        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define INF 1LL<<62
#define inf 1000000007


int main() {
	string s;
	cin>>s;
	bool ch=true;
	if(s.size()%2!=0){
		ch=false;
	}
	for(ll i=0;i<n;i+=2){
		if("hi"!=s[i]+s[i+1]){
			ch=false;
		}
	}
	cout << (ans?"Yes":"No");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:22: error: 'n' was not declared in this scope
   15 |         for(ll i=0;i<n;i+=2){
      |                      ^
a.cc:16:24: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   16 |                 if("hi"!=s[i]+s[i+1]){
a.cc:20:18: error: 'ans' was not declared in this scope; did you mean 'abs'?
   20 |         cout << (ans?"Yes":"No");
      |                  ^~~
      |                  abs
Language: Java

import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc =new Scanner(System.in);
    String s =sc.next();
    String S[] =s.split("",0);
    if(s.length()%2==1){System.out.println("No");
    for(int i=0;i<s.length();i++){
      if(i%2==0){if(S[i].equals("h")){continue;}
                 else{System.out.println("No");System.exit(0);}}
      if(i%2==1){if(S[i].equals("i")){continue;}
                 else{System.out.println("No");System.exit(0);}}}
    System.out.println("Yes");
  }
}


Compiler output:
Main.java:15: error: reached end of file while parsing
}
 ^
1 error
Language: C

#include<stdio.h>

int main(void){
  char s[10];
  char hi[10] = {0};
  int i;
  
  scanf("%s",s);
  
  while(i<=n){
    hi[i] += 'hi';
    if(hi[i] == s[i]){
      printf("Yes");
    }
    i++;
  }
  printf("No");
  
  return 0;
}
  

Compiler output:
main.c: In function 'main':
main.c:10:12: error: 'n' undeclared (first use in this function)
   10 |   while(i<=n){
      |            ^
main.c:10:12: note: each undeclared identifier is reported only once for each function it appears in
main.c:11:14: warning: multi-character character constant [-Wmultichar]
   11 |     hi[i] += 'hi';
      |              ^~~~
Language: C++

int main(){
  string s;
  cin >> s;
  bool ans = true;
  if(s.size()%2 == 1) cout << "No" << endl;
  else{
    for(int i = 0; i < s.size(); i++){
      if(i%2 == 0 && s[i] != 'h') ans = false;
      if(i%2 == 1 && s[i] != 'i') ans = false;
    }
    if(ans) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'string' was not declared in this scope
    2 |   string s;
      |   ^~~~~~
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> s;
      |   ^~~
a.cc:3:10: error: 's' was not declared in this scope
    3 |   cin >> s;
      |          ^
a.cc:5:23: error: 'cout' was not declared in this scope
    5 |   if(s.size()%2 == 1) cout << "No" << endl;
      |                       ^~~~
a.cc:5:39: error: 'endl' was not declared in this scope
    5 |   if(s.size()%2 == 1) cout << "No" << endl;
      |                                       ^~~~
a.cc:11:13: error: 'cout' was not declared in this scope
   11 |     if(ans) cout << "Yes" << endl;
      |             ^~~~
a.cc:11:30: error: 'endl' was not declared in this scope
   11 |     if(ans) cout << "Yes" << endl;
      |                              ^~~~
a.cc:12:10: error: 'cout' was not declared in this scope
   12 |     else cout << "No" << endl;
      |          ^~~~
a.cc:12:26: error: 'endl' was not declared in this scope
   12 |     else cout << "No" << endl;
      |                          ^~~~
Language: C++

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

int main(){
string input = "";
smatch result;
regex regex = ("hi");
cin >> input; 
if(std::regex_search(input,result,regex)){
  cout <<  "Yes" << endl;
}else{
 cout << "No" << endl;
}
}




Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: conversion from 'const char [3]' to non-scalar type 'std::__cxx11::regex' {aka 'std::__cxx11::basic_regex<char>'} requested
    9 | regex regex = ("hi");
      |               ~^~~~~
Language: C++

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

int main(){
string input = "";
smatch result;
regex regex = "hi";
cin >> input; 
if(std::regex_search(input,result,regex)){
  cout <<  "Yes" << endl;
}else{
 cout << "No" << endl;
}
}




Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: conversion from 'const char [3]' to non-scalar type 'std::__cxx11::regex' {aka 'std::__cxx11::basic_regex<char>'} requested
    9 | regex regex = "hi";
      |               ^~~~
Language: C++

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

int main(){
string input = "";
smach result;
regex regex = "hi";
cin >> input; 
if(std::regex_search(input,result,regex)){
  cout <<  "Yes" << endl;
}else{
 cout << "No" << endl;
}
}




Compiler output:
a.cc: In function 'int main()':
a.cc:8:1: error: 'smach' was not declared in this scope
    8 | smach result;
      | ^~~~~
a.cc:9:15: error: conversion from 'const char [3]' to non-scalar type 'std::__cxx11::regex' {aka 'std::__cxx11::basic_regex<char>'} requested
    9 | regex regex = "hi";
      |               ^~~~
a.cc:11:28: error: 'result' was not declared in this scope
   11 | if(std::regex_search(input,result,regex)){
      |                            ^~~~~~
Language: C++

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

int main(){
string input = "";
cin >> input; 
if(std::regex_search(input,result,"hi")){
  cout <<  "Yes" << endl;
}else{
 cout << "No" << endl;
}
}




Compiler output:
a.cc: In function 'int main()':
a.cc:9:28: error: 'result' was not declared in this scope
    9 | if(std::regex_search(input,result,"hi")){
      |                            ^~~~~~
Language: C++

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

int main(){
string input = "";
cin >> input; 
std::regex_search(input,result,"hi");
if(result){
  cout <<  "Yes" << endl;
}else{
 cout << "No" << endl;
}
}




Compiler output:
a.cc: In function 'int main()':
a.cc:9:25: error: 'result' was not declared in this scope
    9 | std::regex_search(input,result,"hi");
      |                         ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
#define LLINF 9223372036854775807
#define MOD ll(1e9+7)
#define all(x) (x).begin(),(x).end()
#define dbg(x) cerr<<#x<<": "<<x<<endl

int main(){
    string s;
    cin >> s;
    string cmp = ""
    for(int i = 0; i < 5; i++){
        cmp += "hi";
        if(s == cmp){
            cout << "Yes" << endl;
            return 0;
        }
    }

    cout << "No" << endl;

    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: expected ',' or ';' before 'for'
   15 |     for(int i = 0; i < 5; i++){
      |     ^~~
a.cc:15:20: error: 'i' was not declared in this scope
   15 |     for(int i = 0; i < 5; i++){
      |                    ^
Language: Java

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author EDGE
 */
public class Solution {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        FastReader in = new FastReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskAtcoderHitachiA solver = new TaskAtcoderHitachiA();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskAtcoderHitachiA {
        public void solve(int testNumber, FastReader in, PrintWriter out) {

            String s = in.nextLine();
            s = s.replaceAll("hi", "");
            //out.println(s+" "+s.length());
            if (s.length() == 0)
                out.println("Yes");
            else
                out.println("No");
        }

    }

    static class FastReader {
        BufferedReader br;

        public FastReader(InputStream inputStream) {
            br = new BufferedReader(new
                    InputStreamReader(inputStream));
        }

        public String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }

    }
}



Compiler output:
Main.java:16: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: C++

#include <string>

int main() {
  std::string str;
  std::cin >> str;
  std::string hitachi;
  for (int i = 0; i < str.size()/2; i++) hitachi += "hi";
  if (hitachi == str) std::cout << "Yes";
  else std::cout << "No";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'cin' is not a member of 'std'
    5 |   std::cin >> str;
      |        ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <string>
  +++ |+#include <iostream>
    2 | 
a.cc:8:28: error: 'cout' is not a member of 'std'
    8 |   if (hitachi == str) std::cout << "Yes";
      |                            ^~~~
a.cc:8:28: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:13: error: 'cout' is not a member of 'std'
    9 |   else std::cout << "No";
      |             ^~~~
a.cc:9:13: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C

import java.util.*;
class main
{
public static void main(String args[])
{
int i=0,j=0,flag=0,s;
char a[]={'h','i'};
Scanner inn=new Scanner(System.in);
String v =inn.next();
s=v.length();
if(s%2!=0)
System.out.println("No");
else
{
for(j=0;j<s;j++)
{
i=i%2;
if(v.charAt(j)!=a[i])
{

flag=1;
break;
}
i++;
}
if(flag==0)
System.out.println("Yes");
else
System.out.println("No");
}
}
}

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import java.util.*;
      | ^~~~~~
main.c:1:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    1 | import java.util.*;
      |            ^
main.c:2:1: error: unknown type name 'class'
    2 | class main
      | ^~~~~
main.c:3:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    3 | {
      | ^
Language: Java

import java.util.*;
public class jkll
{
public static void main(String args[])
{
int i=0,j=0,flag=0,s;
char a[]={'h','i'};
Scanner inn=new Scanner(System.in);
String v =inn.next();
s=v.length();
if(s%2!=0)
System.out.println("No");
else
{
for(j=0;j<s;j++)
{
i=i%2;
if(v.charAt(j)!=a[i])
{

flag=1;
break;
}
i++;
}
if(flag==0)
System.out.println("Yes");
else
System.out.println("No");
}
}
}

Compiler output:
Main.java:2: error: class jkll is public, should be declared in a file named jkll.java
public class jkll
       ^
1 error
Language: C++

#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0; i < n; i++)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } }
#define INF 2e9
#define MOD 1000000007
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<string> vs;
typedef pair<int, int> p;
typedef priority_queue<p> pq;
typedef priority_queue<p, vector<p>, greater<p>> gpq;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    string s;
    cin >> s;

    bool flag = true;

    REP(i, s.length())
    {
        if (i % 2 == 0)
        {
            if(s[i] != 'h'){
                flag = false;
                break;
            }
        }
        if(i % 2 == 1)
        {
            if(s[i] != 'i'){
                flag = false;
                break;
            }
        }
    }


    if(flag == true and s.length >= 2)
        cout << "Yes" << endl;
    else
        cout << "No" << endl;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:27: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   47 |     if(flag == true and s.length >= 2)
      |                         ~~^~~~~~
      |                                 ()
Language: C++

#include<string>
#inlucde<iostream>
int main(void)
{
  string str;
  cin >> str;
  int status = 0;
  for(int i=0; i < (int)str.size(); i++){
    switch(status){
      case 0:
        if(str[i] == 'h') status = 1;
        else status = 3;
        break;
      case 1:
        if(str[i] == 'i') status = 2;
        else status = 3;
        break;
      case 2:
        if(str[i] == 'h') status = 1;
        else status = 3;
        break;
      default:
        status = 3;
        break;
    }
  }
  if(status == 2) cout << "Yes" << endl;
  else cout << "No" << endl;
  return 0;
}
          

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #inlucde; did you mean #include?
    2 | #inlucde<iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:3: error: 'string' was not declared in this scope
    5 |   string str;
      |   ^~~~~~
a.cc:5:3: note: suggested alternatives:
In file included from /usr/include/c++/14/string:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >> str;
      |   ^~~
a.cc:6:10: error: 'str' was not declared in this scope; did you mean 'std'?
    6 |   cin >> str;
      |          ^~~
      |          std
a.cc:27:19: error: 'cout' was not declared in this scope
   27 |   if(status == 2) cout << "Yes" << endl;
      |                   ^~~~
a.cc:27:36: error: 'endl' was not declared in this scope
   27 |   if(status == 2) cout << "Yes" << endl;
      |                                    ^~~~
a.cc:28:8: error: 'cout' was not declared in this scope
   28 |   else cout << "No" << endl;
      |        ^~~~
a.cc:28:24: error: 'endl' was not declared in this scope
   28 |   else cout << "No" << endl;
      |                        ^~~~
Language: C

#include<stdio.h>
#include <string.h>
int main()
{
  char S[10];
  char A[10]="hi";
  int i;
  flag=0;
  scanf("%s",S);
  for(i=0;i<5;i++){
    if(strcpy(S,A)==0){
      flag=1;
      break;
    }
    else{
      strcat(A,A);
    }
  }
  if(flag==0){
    printf("No");
  }
  else{
    printf("Yes");
  }
  return 0;
}

  


Compiler output:
main.c: In function 'main':
main.c:8:3: error: 'flag' undeclared (first use in this function)
    8 |   flag=0;
      |   ^~~~
main.c:8:3: note: each undeclared identifier is reported only once for each function it appears in