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

#include <bits/stdc++.h>

using namespace std;

long long blocked(long long b,long long d, long long width) {
    if (width == 1) return 0;
    long long block_width = width / 3;
    if (b / block_width == d / block_width) {
        if (b / block_width == 1) {
            return min(b - block_width + 1 + d - blockwidth + 1, 2 * blockwidth - b + 2 * blockwidth - d);
        } else {
            return blocked(b % block_width, d % block_width, block_width);
        }
    } else {
        return 0;
    }
}

long long dist(long long a, long long b, long long c, long long d) {
    if (abs(a - c) < abs(b - d)) {
        swap(a, b);
        swap(c, d);
    }
    if (b > d) {
        swap(a, c);
        swap(b, d);
    }
    // b <= d and abs(a - c) >= abs(b - d)
    return blocked(b, d, 205891132094649LL) + abs(a - c) + abs(b - d);
}

int main() {
    int q;
    cin >> q;
    for (int i = 0; i < q; i++) {
        long long a, b, c, d;
        cin >> a >> b >> c >> d;
        cout << dist(a, b, c, d) << endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'long long int blocked(long long int, long long int, long long int)':
a.cc:10:50: error: 'blockwidth' was not declared in this scope; did you mean 'block_width'?
   10 |             return min(b - block_width + 1 + d - blockwidth + 1, 2 * blockwidth - b + 2 * blockwidth - d);
      |                                                  ^~~~~~~~~~
      |                                                  block_width
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N=35;
ll f[N];
ll dis(ll x1,ll y1,ll x2,ll y2){return abs(x1-x2)+abs(y1-y2);}
ll solve(ll x1,ll y1,ll x2,ll y2,ll level)
{
    if(level==0) return return abs(y1-y2);
    ll w=f[level-1];
    if(x1/w!=x2/w) return dis(x1,y1,x2,y2);
    if(x1/w==1&&abs(y1/w-y2/w)>=2)
        return abs(y1-y2)+min(x1%w+x2%w+2,(w-x1%w)+(w-x2%w));
    return solve(x1%w,y1,x2%w,y2,level-1);
}
int main()
{
    f[0]=1;for(int i=1;i<N;i++) f[i]=f[i-1]*3;
    int q;scanf("%d",&q);
    while(q--)
    {
        ll x1,y1,x2,y2;
        scanf("%lld%lld%lld%lld",&x1,&y1,&x2,&y2);
        x1--;y1--;x2--;y2--;
        if(abs(x1-x2)>abs(y1-y2)) swap(x1,y1),swap(x2,y2);
        printf("%lld\n",solve(x1,y1,x2,y2,30));
    }
}


Compiler output:
a.cc: In function 'll solve(ll, ll, ll, ll, ll)':
a.cc:9:25: error: expected primary-expression before 'return'
    9 |     if(level==0) return return abs(y1-y2);
      |                         ^~~~~~
a.cc:9:24: error: expected ';' before 'return'
    9 |     if(level==0) return return abs(y1-y2);
      |                        ^~~~~~~
      |                        ;
Language: C++

typedef long long ll;
#define _abs(x) ((x)>0?(x):-(x))

bool between(ll x, ll y1, ll y2){
  if(y1 > y2) swap(y1, y2);
  y1++; y2--;
  if(!(y1 <= y2)) return false;
  
  while(x > 0){
    if(x % 3 == 1){
      if(y2 - y1 > 3) return true;
      for(ll y=y1;y<=y2;y++) if(y % 3 == 1) return true;
    
    }
    x /= 3;
    y1 /= 3;
    y2 /= 3;
  }
  
  return false;
}
ll get_extra(ll x1, ll y1, ll x2, ll y2){
  ll ans = 0;
  int i;
  ll three = 1;
  
  REP(i,35){
    if(x1 / three == x2 / three && between(x1 / three, y1 / three, y2 / three)){
      ll tmp = min(min(x1 % three, x2 % three) + 1, three - max(x1 % three,
                                                                x2 % three));
      ans = max(ans, tmp);
    }
    three *= 3;
  }
  
  return ans;
}

ll get_dist(ll x1, ll y1, ll x2, ll y2){
  return _abs(x1 - x2) + _abs(y1 - y2) + 2 * max(get_extra(x1, y1, x2, y2), get_extra(
    y1, x1, y2, x2));
}


Compiler output:
a.cc: In function 'bool between(ll, ll, ll)':
a.cc:5:15: error: 'swap' was not declared in this scope
    5 |   if(y1 > y2) swap(y1, y2);
      |               ^~~~
a.cc: In function 'll get_extra(ll, ll, ll, ll)':
a.cc:27:3: error: 'REP' was not declared in this scope
   27 |   REP(i,35){
      |   ^~~
a.cc: In function 'll get_dist(ll, ll, ll, ll)':
a.cc:40:46: error: 'max' was not declared in this scope
   40 |   return _abs(x1 - x2) + _abs(y1 - y2) + 2 * max(get_extra(x1, y1, x2, y2), get_extra(
      |                                              ^~~
Language: C++

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

vector<ll> width = {1LL};

ll solve(ll a, ll b, int level){
    if (level == 0) return 0;
    ll w = width[level-1];
    if (a/w != b/w) {
        return abs(a-b);
    } else if (rowA == 1) {
        return min(a%w + b%w + 2, w*2 - a%w - b%w);
    } else {
        return solve(a%w, b%w, level-1);
    }
}

int main(void){
    rep(i,31){
        width.push_back(width.back() * 3LL);
    }
    int Q;
    cin >> Q;
    rep(q,Q){
        ll a,b,c,d;
        cin >> a >> b >> c >> d;
        a--,b--,c--,d--;
        if (abs(a-c) < abs(b-d)) {
            cout << abs(b-d) + solve(a,c,31) << endl;
        } else {
            cout << abs(a-c) + solve(b,d,31) << endl;
        }
    }
    return 0;
}


Compiler output:
a.cc: In function 'll solve(ll, ll, int)':
a.cc:13:16: error: 'rowA' was not declared in this scope
   13 |     } else if (rowA == 1) {
      |                ^~~~
a.cc:18:1: warning: control reaches end of non-void function [-Wreturn-type]
   18 | }
      | ^
Language: C++

#include<bits/stdc++.h>

int main(){
    using namespace std;
    unsigned long Q;
    cin >> Q;
    constexpr auto M{205891132094649UL};
    const auto& calc = [](auto a, auto b, auto c, auto d){
        auto u{b}, p{M};
        while(p /= 3)if((a / p + (4 - a / p % 3) % 3) * p <= c && b / p % 3 == 1){
            u = b / (3 * p) * 3 * p + 2 * p;
            return c - a + min(u - b + max(u, d) - min(u, d), b + d - 2 * (b / (3 * p) * 3 * p + p - 1));
        }
    };
    for(unsigned long _{0}, a, b, c, d; _ < Q; ++_){
        cin >> a >> b >> c >> d;
        if(--a > --c)swap(a, c), swap(b, d);
        if(--b > --d){
            b = M - b - 1;
            d = M - d - 1;
        }
        cout << max(c - a + d - b, calc(a, b, c, d), calc(b, a, d, c)) << endl;
    }
    return 0;
}

Compiler output:
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare) [with _Tp = long unsigned int; _Compare = long unsigned int]':
a.cc:22:20:   required from here
   22 |         cout << max(c - a + d - b, calc(a, b, c, d), calc(b, a, d, c)) << endl;
      |                 ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:306:17: error: '__comp' cannot be used as a function
  306 |       if (__comp(__a, __b))
      |           ~~~~~~^~~~~~~~~~
a.cc: In lambda function:
a.cc:14:5: warning: control reaches end of non-void function [-Wreturn-type]
   14 |     };
      |     ^
Language: C++

typedef long long ll;
#define REP(i,n)for((i)=0;(i)<(int)(n);(i)++)
#define _abs(x) ((x)>0?(x):-(x))
bool between(ll x,ll y1,ll y2){
  if(y1>y2)swap(y1,y2);
  y1++;y2--;
  if(!(y1<=y2))return false;
  while(x> 0){
    if(x% 3 == 1){
      if(y2-y1> 3)return true;
      for(ll y=y1;y<=y2;y++)if(y% 3 == 1)return true;
    }
    x/= 3;y1/= 3;y2/= 3;
  }
  return false;
}
ll get_extra(ll x1,ll y1,ll x2,ll y2){
  ll ans= 0;int i;ll three= 1;
  REP(i,35){
    if(x1/three==x2/three&&between(x1/three,y1/three,y2/three)){
      ll tmp=min(min(x1%three,x2%three) + 1,three-max(x1%three,x2%three));
      ans=max(ans,tmp);
    }
    three*= 3;
  }
  return ans;
}
ll get_dist(ll x1,ll y1,ll x2,ll y2){
  return _abs(x1-x2) +_abs(y1-y2) + 2 *max(get_extra(x1,y1,x2,y2),get_extra(y1,x1,y2,x2));
}
int main(){
  int Q;
  cin >> Q;
  for(int i=0; i<Q; ++i){
    ll a, b, c, d;
    cin>>a>>b>>c>>d;
    --a;--b;--c;--d;
    cout<< get_dist(a,b,c,d) << endl;
  }
}

Compiler output:
a.cc: In function 'bool between(ll, ll, ll)':
a.cc:5:12: error: 'swap' was not declared in this scope
    5 |   if(y1>y2)swap(y1,y2);
      |            ^~~~
a.cc: In function 'll get_extra(ll, ll, ll, ll)':
a.cc:21:18: error: 'min' was not declared in this scope
   21 |       ll tmp=min(min(x1%three,x2%three) + 1,three-max(x1%three,x2%three));
      |                  ^~~
a.cc:21:51: error: 'max' was not declared in this scope
   21 |       ll tmp=min(min(x1%three,x2%three) + 1,three-max(x1%three,x2%three));
      |                                                   ^~~
a.cc:21:14: error: 'min' was not declared in this scope
   21 |       ll tmp=min(min(x1%three,x2%three) + 1,three-max(x1%three,x2%three));
      |              ^~~
a.cc: In function 'll get_dist(ll, ll, ll, ll)':
a.cc:29:40: error: 'max' was not declared in this scope
   29 |   return _abs(x1-x2) +_abs(y1-y2) + 2 *max(get_extra(x1,y1,x2,y2),get_extra(y1,x1,y2,x2));
      |                                        ^~~
a.cc: In function 'int main()':
a.cc:33:3: error: 'cin' was not declared in this scope
   33 |   cin >> Q;
      |   ^~~
a.cc:38:5: error: 'cout' was not declared in this scope
   38 |     cout<< get_dist(a,b,c,d) << endl;
      |     ^~~~
a.cc:38:33: error: 'endl' was not declared in this scope
   38 |     cout<< get_dist(a,b,c,d) << endl;
      |                                 ^~~~
Language: C++

def between(x, y1, y2):
    if y1 > y2:
        y1,y2= y2,y1
    for i in range(1,4):
        if y1 + i >= y2:continue
        if (y1 + i) % 3 == 1:
            return True
    return False
    
def dist(x1, y1, x2, y2):
    three = 1
    extra = 0
    for i in range(33):
        if x1 // three == x2 // three and between(x1 //three, y1 //three, y2//three):
            extra = max(extra, min(x1 % three, x2 %three) + 1, three - max(x1 % three, x2 % three))

    return abs(x1-x2) + abs(y1-y2) + extra * 2

def solve():
    a,b,c,d = map(int, input().split())
    a,b,c,d = a-1,b-1,c-1,d-1
    print(min(dist(a,b,c,d), dist(b,a,d,c)))

q = int(input())
for _ in range(q):
    solve()

Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def between(x, y1, y2):
      | ^~~
Language: C++

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

vector<int> calc(int64_t v){
    vector<int> res;
    for(int k=0; k<=30; k++){
        res.push_back(v%3);
        v /= 3;
    }
    return res;
}

int main(){
    int Q;
    cin >> Q;
    while(Q--){
        int64_t x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        x1--; y1--; x2--; y2--;
        vector<int> vx1 = calc(x1), vy1 = calc(y1), vx2 = calc(x2), vy2 = calc(y2);
        int ptx = 30, pty = 30;
        while(vx1[ptx] == vx2[ptx]) ptx--;
        while(vy1[pty] == vy2[pty]) pty--;
        
        int64_t ans = abs(x1-x2) + abs(y1-y2);
        if(vx1[ptx] == 1 && vx2[ptx] == 1){
            int64_t B = 1;
            for(int k=0; k<ptx; k++) B *= 3;
            int64_t L1 = x1 / B * B - 1;
            int64_t L2 = L1 + 1 + B;
            ans = max(ans, min(2*L2-x1-x2, x1+x2-2*L1) + abs(y1-y2);
        }
        if(vy1[pty] == 1 && vy2[pty] == 1){
            int64_t B = 1;
            for(int k=0; k<ptx; k++) B *= 3;
            int64_t L1 = y1 / B * B - 1;
            int64_t L2 = L1 + 1 + B;
            ans = max(ans, min(2*L2-y1-y2, y1+y2-2*L1) + abs(x1-x2));
        }
        cout << ans << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:68: error: expected ')' before ';' token
   31 |             ans = max(ans, min(2*L2-x1-x2, x1+x2-2*L1) + abs(y1-y2);
      |                      ~                                             ^
      |                                                                    )
Language: C++

#include "iostream"
#include "vector"
#include "cmath"

using namespace std;

#define sq(x) ((x)*(x))

int main(void) {
    long Q
    vector<long long> a, b, c, d;
    
    cin >> Q;
    for (int i=0; i++; i<Q){
        long long a_i, b_i, c_i, d_i;
        cin >> a_i >> b_i >> c_i >> d_i;
        a.push_back(a_i);
        b.push_back(b_i);
        c.push_back(c_i);
        d.push_back(d_i);
    
    }
    for (int i=0; i++; i<Q){
        long long x = abs(c[i] - a[i]);
        long long y = abs(d[i] - b[i]);
        
        if (x > 0 && y > 0) {
            cout << x+y << endl;
        }
        
        else {
            cout << x+y+2 << endl;
        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: expected initializer before 'vector'
   11 |     vector<long long> a, b, c, d;
      |     ^~~~~~
a.cc:13:12: error: 'Q' was not declared in this scope
   13 |     cin >> Q;
      |            ^
a.cc:17:9: error: 'a' was not declared in this scope
   17 |         a.push_back(a_i);
      |         ^
a.cc:18:9: error: 'b' was not declared in this scope
   18 |         b.push_back(b_i);
      |         ^
a.cc:19:9: error: 'c' was not declared in this scope
   19 |         c.push_back(c_i);
      |         ^
a.cc:20:9: error: 'd' was not declared in this scope
   20 |         d.push_back(d_i);
      |         ^
a.cc:24:27: error: 'c' was not declared in this scope
   24 |         long long x = abs(c[i] - a[i]);
      |                           ^
a.cc:24:34: error: 'a' was not declared in this scope
   24 |         long long x = abs(c[i] - a[i]);
      |                                  ^
a.cc:25:27: error: 'd' was not declared in this scope
   25 |         long long y = abs(d[i] - b[i]);
      |                           ^
a.cc:25:34: error: 'b' was not declared in this scope
   25 |         long long y = abs(d[i] - b[i]);
      |                                  ^
Language: C

#include<stdio.h>

typedef long long LL;

void swap(int& a, int&b){
	if(a>b){ int c=a; a=b; b=c; }
}

int abs(int a){return a<0?-a:a;}
int min(int a, int b){return a<b?a:b;}
int max(int a, int b){return a>b?a:b;}
LL s[31], small[31], big[31];

int dist(int a, int b, int c, int d){
	int i, x, y;
	for(i=30;i;--i){
		if(abs(a-c)>s[i-1] && abs(b-d)<s[i-1] &&
				(min(a, c)+s[i]-1)/s[i]<(max(a, c)+s[i]-1)/s[i] &&
				(b-1)/s[i-1]==(d-1)/s[i-1] && (b-1)/s[i-1]%3==1){
			x=b/s[i];
			return abs(a-c)+abs(b-d)+2*min(abs(min(b, d)-(small[i]+x*s[i])),
					abs((big[i]+x*s[i])-max(b, d)));
		}
		if(abs(b-d)>s[i-1] && abs(a-c)<s[i-1] &&
				(min(b, d)+s[i]-1)/s[i]<(max(b, d)+s[i]-1)/s[i] &&
				(a-1)/s[i-1]==(c-1)/s[i-1] && (a-1)/s[i-1]%3==1){
			x=a/s[i];
			return abs(b-d)+abs(a-c)+2*min(abs(min(a, c)-(small[i]+x*s[i])),
					abs((big[i]+x*s[i])-max(a, c)));
		}
	}
	return abs(a-c)+abs(b-d);
}

int main(){
	s[0]=1;
	int i, q, a, b, c, d;
	for(i=1;i<31;++i){
		s[i]=s[i-1]*3;
		small[i]=s[i]/2+1-s[i-1]/2;
		big[i]=small[i]+s[i]-1;
	}
	scanf("%d", &q);
	while(q--){
		scanf("%d %d %d %d", &a, &b, &c, &d);
		//ac->x
		//bd->y
		//swap(a, c);
		//swap(b, d);
		printf("%d\n", dist(a, b, c, d));
	}
	return 0;
}


Compiler output:
main.c:5:14: error: expected ';', ',' or ')' before '&' token
    5 | void swap(int& a, int&b){
      |              ^
Language: C++

#include <bits/stdc++.h
using namespace std;
int main(){
  long long int Q,a,b,c,d;cin>>Q;
  for(int i=0;i<Q;i++){
    cin>>a>>b>>c>>d;
    cout<<abs(a-b)+abs(c-d)<<endl;
  }
}

Compiler output:
a.cc:1:24: error: missing terminating > character
    1 | #include <bits/stdc++.h
      |                        ^
Language: C++

#include< bits/stdc++.h>

using namespace std;


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


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

#include <bits/stdc++.h>
using namespace std;
#define _GLIBCXX_DEBUG
#define rep(i, from, to) for (int i = from; i < (to); ++i)
#define mp(x,y) make_pair(x,y)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define pb push_back
using ll = long long;
using vin=vector<int>;
using vll=vector<ll>;
using vst=vector<string>;
using P = pair<ll,ll>;
const int inf=1e9+7;
const ll INF=9e18;
template <typename T> bool chmin(T &a, const T& b){if(a > b){a = b;return true;}return false;}
template <typename T> bool chmax(T &a, const T& b){if(a < b){a = b;return true;}return false;}
template<class T> inline void Yes(T condition){ if(condition) cout << "Yes" << endl; else cout << "No" << endl; }
template<class T> inline void YES(T condition){ if(condition) cout << "YES" << endl; else cout << "NO" << endl; }
const int dx[4] = { 1, 0, -1, 0 };
const int dy[4] = { 0, 1, 0, -1 };

stirng a[5]={"hi","hihi","hihihi","hihihihi","hihihihihi"};


int main(){cout<<fixed<<setprecision(20);
		   string s;
           cin>>s;
           
           bool ok=0;
           rep(i,0,5){
            if(s==a[i])ok=true; 
           }
           Yes(ok);
}

Compiler output:
a.cc:23:1: error: 'stirng' does not name a type
   23 | stirng a[5]={"hi","hihi","hihihi","hihihihi","hihihihihi"};
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:32:19: error: 'a' was not declared in this scope
   32 |             if(s==a[i])ok=true;
      |                   ^
Language: C++

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

int main() {
  string S;
  cin >> S;
  int A = S.size();
  int count  = 0;
 for(int i = 0;i < A;i++){
   if(i % 2 == 0){
     if(S[i] == 'h'){
     }
       else{
  count++;
       }
     }
   if(i % 2 == 0){
     if(S[i] == 'i'){
     }
     else{
       count++;
     }
     }
     if(count > 0){
       cout << "No" << endl;
     }
else{
cout << "Yes" << endl;
}
   
     
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:2: error: expected '}' at end of input
   32 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main() {
  string S;
  cin >> S;
  int A = S.size();
  int count  = 0;
 for(int i = 0;i < A;i++){
   if(i % 2 == 0){
     if(S[i] == 'h'){
       else{
  count++;
       }
     }
   else if(i % 2 == 0){
     if(S[i] == 'i'){
     }
     else{
       count++;
     }
     }
     if(count > 0){
       cout << "No" << endl;
     }
else{
cout << "Yes" << endl;
}
   
     
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:8: error: expected '}' before 'else'
   12 |        else{
      |        ^~~~
a.cc:11:21: note: to match this '{'
   11 |      if(S[i] == 'h'){
      |                     ^
a.cc:31:2: error: expected '}' at end of input
   31 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main() {
  string S;
  cin >> S;
  int A = S.size();
  int count  = 0;
 for(int i = 0;i < A;i++){
   if(i % 2 == 0){
     if(S[i] == "h"){
       else{
  count++;
       }
     }
   else if(i % 2 == 0){
     if(S[i] == "i"){
     }
     else{
       count++;
     }
     }
     if(count > 0){
       cout << "No" << endl;
     }
else{
cout << "Yes" << endl;
}
   
     
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   11 |      if(S[i] == "h"){
a.cc:12:8: error: expected '}' before 'else'
   12 |        else{
      |        ^~~~
a.cc:11:21: note: to match this '{'
   11 |      if(S[i] == "h"){
      |                     ^
a.cc:17:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 |      if(S[i] == "i"){
a.cc:31:2: error: expected '}' at end of input
   31 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <string>

int main()
{
  string t;
  string r;
  string s;
  cin >> t;
  int l=t.size()/2;
  for(int i = 0; i < l; i++){
    s+="hi";
  }
  if(s==t)
    r="yes";
  else
    r="no";
  
  cout << r << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'string' was not declared in this scope
    6 |   string t;
      |   ^~~~~~
a.cc:6:3: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:7:9: error: expected ';' before 'r'
    7 |   string r;
      |         ^~
      |         ;
a.cc:8:9: error: expected ';' before 's'
    8 |   string s;
      |         ^~
      |         ;
a.cc:9:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    9 |   cin >> t;
      |   ^~~
      |   std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:9:10: error: 't' was not declared in this scope; did you mean 'tm'?
    9 |   cin >> t;
      |          ^
      |          tm
a.cc:12:5: error: 's' was not declared in this scope
   12 |     s+="hi";
      |     ^
a.cc:14:6: error: 's' was not declared in this scope
   14 |   if(s==t)
      |      ^
a.cc:15:5: error: 'r' was not declared in this scope
   15 |     r="yes";
      |     ^
a.cc:17:5: error: 'r' was not declared in this scope
   17 |     r="no";
      |     ^
a.cc:19:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   19 |   cout << r << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:19:11: error: 'r' was not declared in this scope
   19 |   cout << r << endl;
      |           ^
a.cc:19:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   19 |   cout << r << endl;
      |                ^~~~
      |                std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>

using namespace std;

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


Compiler output:
a.cc:10:19: warning: multi-character character constant [-Wmultichar]
   10 |             cout<<'No'<<endl;
      |                   ^~~~
a.cc:14:11: warning: multi-character character constant [-Wmultichar]
   14 |     cout<<'Yes'<<endl;
      |           ^~~~~
a.cc: In function 'int main()':
a.cc:8:32: error: expected ';' before ')' token
    8 |     for(int i=0;i<s.size(),i+=2){
      |                                ^
      |                                ;
Language: C++

#iclude <iostream>

using namespace std;

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

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #iclude; did you mean #include?
    1 | #iclude <iostream>
      |  ^~~~~~
      |  include
a.cc:10:19: warning: multi-character character constant [-Wmultichar]
   10 |             cout<<'No'<<endl;
      |                   ^~~~
a.cc:14:11: warning: multi-character character constant [-Wmultichar]
   14 |     cout<<'Yes'<<endl;
      |           ^~~~~
a.cc: In function 'int main()':
a.cc:6:5: error: 'string' was not declared in this scope
    6 |     string s;
      |     ^~~~~~
a.cc:1:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 | #iclude <iostream>
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin>>s;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #iclude <iostream>
a.cc:7:10: error: 's' was not declared in this scope
    7 |     cin>>s;
      |          ^
a.cc:8:32: error: expected ';' before ')' token
    8 |     for(int i=0;i<s.size(),i+=2){
      |                                ^
      |                                ;
a.cc:10:13: error: 'cout' was not declared in this scope
   10 |             cout<<'No'<<endl;
      |             ^~~~
a.cc:10:13: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:10:25: error: 'endl' was not declared in this scope
   10 |             cout<<'No'<<endl;
      |                         ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #iclude <iostream>
a.cc:14:5: error: 'cout' was not declared in this scope
   14 |     cout<<'Yes'<<endl;
      |     ^~~~
a.cc:14:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:18: error: 'endl' was not declared in this scope
   14 |     cout<<'Yes'<<endl;
      |                  ^~~~
a.cc:14:18: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

#include<stdio.h>
#include<iostream>
#include<vector>
#include<math.h>
#include<queue>
#include<map>
#include<algorithm>
#include<string.h>
#include<functional>
#include<limits.h>
#include<stdlib.h>
#include<string>
#include<unordered_map>
#include <iomanip>
using namespace std;
 
#define intmax INT_MAX
#define lmax LONG_MAX
#define uintmax UINT_MAX
#define ulmax ULONG_MAX
#define llmax LLONG_MAX
#define ll long long
#define rep(i,a,N) for((i)=(a);(i)<(N);(i)++)
#define rrp(i,N,a) for((i)=(N)-1;(i)>=(a);(i)--)
#define llfor ll i,j,k
#define sc(a) cin>>a
#define pr(a) cout<<a<<endl
#define pY puts("YES")
#define pN puts("NO")
#define py puts("Yes")
#define pn puts("No")
#define pnn printf("\n")
#define sort(a) sort(a.begin(),a.end())
#define push(a,b) (a).push_back(b)
#define llvec vector<vector<ll>>
#define charvec vector<vector<char>>
#define sizeoof(a,b) (a,vector<ll>(b))
#define llpvec vector<pair<ll,ll>>
/*繰り上げ除算*/ll cei(ll x,ll y){ll ans=x/y;if(x%y!=0)ans++;return ans;}
/*最大公約数*/ll gcd(ll x,ll y){return y?gcd(y,x%y):x;}
/*最小公倍数*/ll lcm(ll x,ll y){return x/gcd(x,y)*y;}
/*n乗*/ll llpow(ll x,ll n){ll i,ans=1;rep(i,0,n)ans*=x;return ans;}
/*階乗*/ll fact(ll x){ll i,ans=1;rep(i,0,x)ans*=(x-i);return ans;}
/*nCr*/ll ncr(ll n,ll r){return fact(n)/fact(r)/fact(n-r);}
/*nPr*/ll npr(ll n,ll r){return fact(n)/fact(n-r);}
/*primejudge*/bool prime(ll a){if(a<=1)return false;ll i;for(i=2;i*i<=a;i++){if(a%i==0)return false;}return true;}
ll ans=0;llfor;///////////////////////////////////////////////////////////
int main(){
  string S;
  cin>>S;
  string T="No";
  int N=S.size();
  int x==1;
  for(int i=0;i<N;i+=2){
    if(S[i]!='h' || S[i+1]!='i') x*=0;
  }
  if(N%2==0 && x==1) T="Yes";
  cout<<T;
return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:53:8: error: expected initializer before '==' token
   53 |   int x==1;
      |        ^~
a.cc:55:34: error: 'x' was not declared in this scope
   55 |     if(S[i]!='h' || S[i+1]!='i') x*=0;
      |                                  ^
a.cc:57:16: error: 'x' was not declared in this scope
   57 |   if(N%2==0 && x==1) T="Yes";
      |                ^
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 's' was not declared in this scope
    9 |       if(S[i]=='h'&&s[i+1]=='i'){
      |                     ^
Language: C++

#include <iostream.h>
using namespace std;int main() {char a,b,c=0;while(c<5){cin>>a>>b;if(a!='h'||b!='i'){cout<<"No";return 0;}c++;}cout<<"Yes";}

Compiler output:
a.cc:1:10: fatal error: iostream.h: No such file or directory
    1 | #include <iostream.h>
      |          ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
//型に気を付けよう
//a=0x61=97
#define rep(i,n) for(int i=0;i<n;i++)
typedef long long  ll;
typedef long double  ld;
typedef string str;
typedef pair<int,int> pairii;
typedef vector<int> veci;
const double pi=3.1415926535;
const ll  mod=1000000007;
//桁数指定　cout << fixed << setprecision(2)
int MIN(vector<int> Vec){//配列の最小値
  int n=Vec.size();
  int min= INT_MAX;
  for(int i=0;i<n;i++){
    if(min>Vec.at(i))min=Vec.at(i);
  }
  return min;}
int main() {
  char a,b;
  rep(i,5){
    cin>>a>>b;
    if(a=='')break;
    if(a!='h'||b!='i'){cout<<"No"<<endl;break;}
  }
  cout<<"Yes"<<endl;return 0;
}


Compiler output:
a.cc:25:11: error: empty character constant
   25 |     if(a=='')break;
      |           ^~
Language: C++

#include <iostream>

string s;

int main(){
	cin >> s;
	if((int)s.size() % 2 != 0){
		cout << "No\n"; return 0;
	}
	for(int i = 0;i < (int)s.size();i++){
		if(i % 2 == 0 && s[i] != 'h'){
			cout << "No\n"; return 0;			
		}
		if(i % 2 == 1 && s[i] != 'i'){
			cout << "No\n"; return 0;			
		}
	}
	cout << "Yes\n";
}

Compiler output:
a.cc:3:1: error: 'string' does not name a type; did you mean 'stdin'?
    3 | string s;
      | ^~~~~~
      | stdin
a.cc: In function 'int main()':
a.cc:6:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |         cin >> s;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:16: error: 's' was not declared in this scope
    6 |         cin >> s;
      |                ^
a.cc:8:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |                 cout << "No\n"; return 0;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:25: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |                         cout << "No\n"; return 0;
      |                         ^~~~
      |                         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:15:25: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   15 |                         cout << "No\n"; return 0;
      |                         ^~~~
      |                         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:18:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   18 |         cout << "Yes\n";
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
  string s;
  cin>>s;
  vector<string> a;
  string hoge="hi";
  a.push_back(hoge);
  for(int i=0;i<4;i++){
    hoge=hoge+"hi";
    a.push_back(hoge);
  }
  for(int i=0;i<5;i++){
    if(a[i]==s){
      cout<<"Yes"<<endl;
      return 0;
    }
  }
  cout<<"No"<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:3: error: 'vector' was not declared in this scope
    6 |   vector<string> a;
      |   ^~~~~~
a.cc:2:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    1 | #include <iostream>
  +++ |+#include <vector>
    2 | using namespace std;
a.cc:6:16: error: expected primary-expression before '>' token
    6 |   vector<string> a;
      |                ^
a.cc:6:18: error: 'a' was not declared in this scope
    6 |   vector<string> a;
      |                  ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(ll i=0;i<(n);i++)
#define all(x) (x).begin(), (x).end()
using ll = long long;
using namespace std;
template <typename T>
using vec = std::vector<T>;

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

    bool m = regex_match(S, regex("(hi)+");
    cout << (m?"Yes":"No") << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:43: error: expected ')' before ';' token
   13 |     bool m = regex_match(S, regex("(hi)+");
      |                         ~                 ^
      |                                           )
Language: C++

#include<vector>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:5:4: error: 'string' was not declared in this scope
    5 |    string s;
      |    ^~~~~~
a.cc:2:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
    1 | #include<vector>
  +++ |+#include <string>
    2 | using namespace std;
a.cc:6:4: error: 'cin' was not declared in this scope
    6 |    cin >> s;
      |    ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include<vector>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:6:11: error: 's' was not declared in this scope
    6 |    cin >> s;
      |           ^
a.cc:8:8: error: 'cout' was not declared in this scope
    8 |        cout << "No" << endl;
      |        ^~~~
a.cc:8:8: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:8:24: error: 'endl' was not declared in this scope
    8 |        cout << "No" << endl;
      |                        ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include<vector>
  +++ |+#include <ostream>
    2 | using namespace std;
a.cc:16:12: error: 'cout' was not declared in this scope
   16 |            cout << "No" << endl;
      |            ^~~~
a.cc:16:12: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:28: error: 'endl' was not declared in this scope
   16 |            cout << "No" << endl;
      |                            ^~~~
a.cc:16:28: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:20:4: error: 'cout' was not declared in this scope
   20 |    cout << "Yes" << endl;
      |    ^~~~
a.cc:20:4: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:20:21: error: 'endl' was not declared in this scope
   20 |    cout << "Yes" << endl;
      |                     ^~~~
a.cc:20:21: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  String s;
  cin>>s;
  int count=0;
  for(int i=0;i<strlen(s)-1;i++)
  {
    if(s[i]=='h' && s[i+1]=='i'){
      count++;
      
  }
    if(count>0)
      cout<<"Yes"<<endl;
    else
      cout<<"No"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'String' was not declared in this scope
    5 |   String s;
      |   ^~~~~~
a.cc:6:8: error: 's' was not declared in this scope
    6 |   cin>>s;
      |        ^
a.cc:18:2: error: expected '}' at end of input
   18 | }
      |  ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

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

int main() {
  string S;
  cin >> S;
  int flag = 0;
  int n = S.size();
  if(n%2 != 0){
    flag = 1;
    break;
  }
  else{
  for(int i=0;i<n;i++){
    if(i%2 == 0){
      if(S.at(i)!='h'){
        flag = 1;
        break;
      }
    }
     else{
      if(S.at(i)!='i'){
        flag = 1;
        break;
      }
    }
  }
  
  if(flag == 0){
      cout << "Yes" << endl;
    }
    else{
      cout << "No" << endl;
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: break statement not within loop or switch
   11 |     break;
      |     ^~~~~
a.cc:35:2: error: expected '}' at end of input
   35 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main() {
  string S;
  cin >> S;
  int flag = 0;
  int n = S.size();
  if(n%2 != 0){
    flag = 1;
    break;
  }
  else{
  for(int i=0;i<n;i++){
    if(i%2 == 0){
      if(S.at(i)!='h'){
        flag = 1;
        break;
      }
    }
     else{
      if(S.at(i)!='i'){
        flag = 1;
        break;
      }
    }
  }
  }
  if(flag == 0){
      cout << "Yes" << endl;
    }
    else{
      cout << "No" << endl;
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: break statement not within loop or switch
   11 |     break;
      |     ^~~~~
Language: C++

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

int main() {
  string S;
  cin >> S;
  int flag = 0;
  for(int i =0;i<S.size();i++){
    if(i%2 == 0){
      if(S.at(i)!='h'){
        flag = 1;
        break;
      }
    }
     else{
      if(S.at(i)!='i'){
        flag = 1;
        break;
      }
    }
  }
  if(flag == 0){
      cout << "Yes" << endl;
    }
    else{
      cout << "No" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: 's' was not declared in this scope
    6 |   cin >> s;
      |          ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: 's' was not declared in this scope
    6 |   cin >> s;
      |          ^
Language: C++

    std::string strS;
    std::cin >> strS;

    std::string h = "hi";
    if(strS.size() % 2 == 1) {
        std::cout << "No";
        return 0;
    }
    for(int i = 0; i < strS.size(); i += 2) {
        if(strS[i] == 'h' && strS[i + 1] == 'i') continue;
        std::cout << "No";
        return 0;
    }
    std::cout << "Yes";
 
    return 0;

Compiler output:
a.cc:1:10: error: 'string' in namespace 'std' does not name a type
    1 |     std::string strS;
      |          ^~~~~~
a.cc:1:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 |     std::string strS;
a.cc:2:10: error: 'cin' in namespace 'std' does not name a type
    2 |     std::cin >> strS;
      |          ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 |     std::string strS;
a.cc:4:10: error: 'string' in namespace 'std' does not name a type
    4 |     std::string h = "hi";
      |          ^~~~~~
a.cc:4:5: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
    4 |     std::string h = "hi";
      |     ^~~
a.cc:5:5: error: expected unqualified-id before 'if'
    5 |     if(strS.size() % 2 == 1) {
      |     ^~
a.cc:9:5: error: expected unqualified-id before 'for'
    9 |     for(int i = 0; i < strS.size(); i += 2) {
      |     ^~~
a.cc:9:20: error: 'i' does not name a type
    9 |     for(int i = 0; i < strS.size(); i += 2) {
      |                    ^
a.cc:9:37: error: 'i' does not name a type
    9 |     for(int i = 0; i < strS.size(); i += 2) {
      |                                     ^
a.cc:14:10: error: 'cout' in namespace 'std' does not name a type
   14 |     std::cout << "Yes";
      |          ^~~~
a.cc:14:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
   14 |     std::cout << "Yes";
      |     ^~~
a.cc:16:5: error: expected unqualified-id before 'return'
   16 |     return 0;
      |     ^~~~~~
Language: C++

    std::string strS;
    std::cin >> strS;
    bool isOK = false;

    std::string h = "hi";
    if(strS.size() % 2 == 1) {
        std::cout << "No";
        return 0;
    }
    for(int i = 0; i < strS.size(); i += 2) {
        if(strS[i] == 'h' && strS[i + 1] == 'i') continue;
        std::cout << "No";
        return 0;
    }
    std::cout << "Yes";
 
    return 0;

Compiler output:
a.cc:1:10: error: 'string' in namespace 'std' does not name a type
    1 |     std::string strS;
      |          ^~~~~~
a.cc:1:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 |     std::string strS;
a.cc:2:10: error: 'cin' in namespace 'std' does not name a type
    2 |     std::cin >> strS;
      |          ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 |     std::string strS;
a.cc:5:10: error: 'string' in namespace 'std' does not name a type
    5 |     std::string h = "hi";
      |          ^~~~~~
a.cc:5:5: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
    5 |     std::string h = "hi";
      |     ^~~
a.cc:6:5: error: expected unqualified-id before 'if'
    6 |     if(strS.size() % 2 == 1) {
      |     ^~
a.cc:10:5: error: expected unqualified-id before 'for'
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |     ^~~
a.cc:10:20: error: 'i' does not name a type
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |                    ^
a.cc:10:37: error: 'i' does not name a type
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |                                     ^
a.cc:15:10: error: 'cout' in namespace 'std' does not name a type
   15 |     std::cout << "Yes";
      |          ^~~~
a.cc:15:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
   15 |     std::cout << "Yes";
      |     ^~~
a.cc:17:5: error: expected unqualified-id before 'return'
   17 |     return 0;
      |     ^~~~~~
Language: C++

    std::string strS;
    std::cin >> strS;
    bool isOK = false;

    string h = "hi";
    if(strS.size() % 2 == 1) {
        cout << "No";
        return 0;
    }
    for(int i = 0; i < strS.size(); i += 2) {
        if(strS[i] == 'h' && strS[i + 1] == 'i') continue;
        cout << "No";
        return 0;
    }
    cout << "Yes";
 
    return 0;


Compiler output:
a.cc:1:10: error: 'string' in namespace 'std' does not name a type
    1 |     std::string strS;
      |          ^~~~~~
a.cc:1:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 |     std::string strS;
a.cc:2:10: error: 'cin' in namespace 'std' does not name a type
    2 |     std::cin >> strS;
      |          ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 |     std::string strS;
a.cc:5:5: error: 'string' does not name a type
    5 |     string h = "hi";
      |     ^~~~~~
a.cc:6:5: error: expected unqualified-id before 'if'
    6 |     if(strS.size() % 2 == 1) {
      |     ^~
a.cc:10:5: error: expected unqualified-id before 'for'
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |     ^~~
a.cc:10:20: error: 'i' does not name a type
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |                    ^
a.cc:10:37: error: 'i' does not name a type
   10 |     for(int i = 0; i < strS.size(); i += 2) {
      |                                     ^
a.cc:15:5: error: 'cout' does not name a type
   15 |     cout << "Yes";
      |     ^~~~
a.cc:17:5: error: expected unqualified-id before 'return'
   17 |     return 0;
      |     ^~~~~~
Language: C++

#include <iostream>
#include <stdio.h>
#include <string.h>
#include <vector>
 
int main() {
    std::string strS;
    std::cin >> strS;
    bool isOK = false;
    for (int i =0; i < target.size()-2 ; i++){
        if( strS[i] == 'h' && strS[i+1] == 'i'){
           isOK = true;
        }
 
    }
    if(isOK == true){
        std::cout << "Yes" << std::endl;
    }
    else{std::cout << "No" << std::endl;}
 
 
 
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:24: error: 'target' was not declared in this scope
   10 |     for (int i =0; i < target.size()-2 ; i++){
      |                        ^~~~~~
Language: C++

#include <iostream>
#include <stdio.h>
#include <string.h>
#include <vector>

int main() {
    std::string strS;
    std::cin >> strS;
    std::string target = 'hi';
    bool isOK = false
    for (int i =0; i < target.size()-2 ; i++){
        if( strS[i] == 'h' && strS[i+1] == 'i'){
           isOK = true;
        }

    }
    if(isOK == true){
        std::cout << "Yes" << std::endl;
    }
    else{std::cout << "No" << std::endl;}



    return 0;
}

Compiler output:
a.cc:9:26: warning: multi-character character constant [-Wmultichar]
    9 |     std::string target = 'hi';
      |                          ^~~~
a.cc: In function 'int main()':
a.cc:9:26: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
a.cc:11:5: error: expected ',' or ';' before 'for'
   11 |     for (int i =0; i < target.size()-2 ; i++){
      |     ^~~
a.cc:11:20: error: 'i' was not declared in this scope
   11 |     for (int i =0; i < target.size()-2 ; i++){
      |                    ^
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:8:21: error: expected primary-expression before ')' token
    8 |     for (i % 2 == 1;){
      |                     ^
a.cc:8:21: error: expected ';' before ')' token
    8 |     for (i % 2 == 1;){
      |                     ^
      |                     ;
a.cc:9:22: error: 'h' was not declared in this scope
    9 |       if (S.at(i) == h){
      |                      ^
a.cc:15:21: error: expected primary-expression before ')' token
   15 |     for (i % 2 == 0;){
      |                     ^
a.cc:15:21: error: expected ';' before ')' token
   15 |     for (i % 2 == 0;){
      |                     ^
      |                     ;