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

int main(){
    int N;
    cin >> N;
    long A[N];
    int cnt = 0;
    for (int i=0;i<N;++i){
        cin >> A[i];
        if (i>1){
            if(A[i-2]<A[i-1]) {
                if(A[i-1]>A[i]) cnt++;
            } else if(A[i-2]>A[i-1]) {
                if(A[i-1]>A[i]) cnt++;
            }
        }
    }
    cout << cnt+1 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> N;
      |     ^~~
a.cc:16:5: error: 'cout' was not declared in this scope
   16 |     cout << cnt+1 << endl;
      |     ^~~~
a.cc:16:22: error: 'endl' was not declared in this scope
   16 |     cout << cnt+1 << endl;
      |                      ^~~~
Language: C++

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

int main() {
    int N;
    cin >> N;
    vector<int> A(N+1,0);

    bool iflag = false, dflag = false;
    int ans = 0;

    for(int i = 0; i < N; i++){
        if(A[i] < A[i+1]){
            if(dfalg){
                ans++;
                dflag = false;
                continue;
            }
        iflag = true;
        dflag = false;
        } else if(A[i] > A[i+1]){
            if(ifalg){
                ans++;
                iflag = false;
                continue;
            }
        dflag = true;
        iflag = false;
        }
    }
    cout << ans + 1 << endl;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: 'dfalg' was not declared in this scope; did you mean 'dflag'?
   14 |             if(dfalg){
      |                ^~~~~
      |                dflag
a.cc:22:16: error: 'ifalg' was not declared in this scope; did you mean 'iflag'?
   22 |             if(ifalg){
      |                ^~~~~
      |                iflag
Language: C++

  #include<bits/stdc++.h>

using namespace std;

typedef long long ll;

int main(){
 ll N; cin >> N;
  vector<ll> A(N);
  for(ll i = 0; i < N; i++){
    cin >> A[i];}
  
  if( N >= 3){
    ll cnt = 0;
    
    for(ll i = 2w; i < N - 2; ){
      if( A[i] > A[i-1] && A[i] > A[i+1]){ cnt++; i += 2;}
      else if( A[i] < A[i-1] && A[i] < A[i+1]){ cnt++; i+= 2;}
      else{ i++;}
       }
   
    cout << cnt+ 1 << endl; return 0;}
  else{ cout << 1 << endl; return 0;}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:16: error: unable to find numeric literal operator 'operator""w'
   16 |     for(ll i = 2w; i < N - 2; ){
      |                ^~
Language: C++

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

int main(){
  int N;
  cin >> N;
  vector<int> A(N);
  for(int i=0; i<N; i++) cin >> A[i];

  ll ans = 1;
  for(int i=1; i<N-1; i++){
    if((A[i-1]<A[i]&&A[i+1]<A[i]) || (A[i]<A[i-1]&&A[i]<A[i+1])) ans++;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: 'll' was not declared in this scope
   11 |   ll ans = 1;
      |   ^~
a.cc:13:66: error: 'ans' was not declared in this scope; did you mean 'abs'?
   13 |     if((A[i-1]<A[i]&&A[i+1]<A[i]) || (A[i]<A[i-1]&&A[i]<A[i+1])) ans++;
      |                                                                  ^~~
      |                                                                  abs
a.cc:15:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   15 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++



#include<iostream>
#include<vector>

using namespace std;

int main()
{
    int n;cin>>n;
    vector<int> A(n);
    for(int i=0;i<n;i++)
    {
        scanf("%d",&A[i]);
    }

    int res=0;
    for(int i=0;i<n;++i)
    {
        //sameを抜ける
        while(i+1<n && A[i]==A[i+1])++i;

        //単調非減少
        if(i+1<N && A[i]<A[i+1])
        {
            while(i+1<n && A[i]<=A[i+1])++i;
        }
        //単調非増加
        else if(i+1<n && A[i]>A[i+1])
        {
            while(i+1<n && A[i]>=A[i+1]) ++i;
        }
        ++res;
    }

    cout<<res<<"\n";

}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:16: error: 'N' was not declared in this scope
   24 |         if(i+1<N && A[i]<A[i+1])
      |                ^
Language: C++



#include<iostream>
#include<vector>

using namespace std;

int main()
{
    int n;cin>>n;
    vector<int> A(n);
    for(int i=0;i<n;i++)
    {
        scanf("%d",&A[i]);
    }

    int res=0;
    for(int i=0;i<n;++i)
    {
        //sameを抜ける
        while(i+1<n; && A[i]==A[i+1])++i;

        //単調非減少
        if(i+1<N && A[i]<A[i+1])
        {
            while(i+1<n && A[i]<=A[i+1])++i;
        }
        //単調非増加
        else if(i+1<n && A[i]>A[i+1])
        {
            while(i+1<n && A[i]>=A[i+1]) ++i;
        }
        ++res;
    }

    cout<<res<<"\n";

}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:20: error: expected ')' before ';' token
   21 |         while(i+1<n; && A[i]==A[i+1])++i;
      |              ~     ^
      |                    )
a.cc:21:26: error: expected ';' before '[' token
   21 |         while(i+1<n; && A[i]==A[i+1])++i;
      |                          ^
      |                          ;
a.cc:24:16: error: 'N' was not declared in this scope
   24 |         if(i+1<N && A[i]<A[i+1])
      |                ^
a.cc:21:25: error: label 'A' used but not defined
   21 |         while(i+1<n; && A[i]==A[i+1])++i;
      |                         ^
Language: C++

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

int main(){
  int n;
  cin >> n;
  
  vector<int> a(n);
  for (int i=0; i<n; i++){
    cin >> a.at(i);
  }
  
  int cnt = 1, flag = 0;
  
  for (int i=0; i<n-1; i++){
    if (i == 0 || flag == 2){
      if (a[i] < a[i+1]){
        flag = 0;
      }
      else if (a[i] > a[i+1]){
        flag = 1;
      }
      else{
        flag = 2;
      }
    }else if (flag == 0){
      if (a[i] > a[i+1]){
        ans++;
        flag = 2;
      }
    }else{
      if (a[i] < a[i+1]){
        ans++;
        flag = 2;
      }
    }
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   28 |         ans++;
      |         ^~~
      |         abs
a.cc:33:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   33 |         ans++;
      |         ^~~
      |         abs
a.cc:38:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   38 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include <bits/stdc++.h>

#define mod 1000000007

using namespace std;
 
int main(void){
	
	int N;
	
	cin >> N;
	
	long long int A[N], divide = 1;
	
	for(int i=0; i<N; i++)
		cin >> A[i];
	
	for(int i=0; i<N-1; i++){
		while(A[i] == A[i+1])
			i++;
		if(i+1<N&&a[i]<a[i+1]){
			while(i+1<N&&a[i]<=a[i+1]) i++;
		}
		else if(i+1<N&&a[i+1]<a[i]){
			while(i+1<N&&a[i+1]<=a[i]) i++;
		}
		divide++;
	}
	
	cout << divide;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:27: error: 'a' was not declared in this scope
   21 |                 if(i+1<N&&a[i]<a[i+1]){
      |                           ^
Language: C++

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

int main() {
    int N, a, b, ans = 0;
    bool first = true, up;
    cin >> N >> a;
    rep(i, N-1) {
        cin >> b;
        if (a == b) continue;
        if (first) {
            up = a < b
            first = false;
        }
        if (up) {
            if (a > b) {
                up = false;
                ans++;
            }
        } else {
            if (a < b) {
                up = true;
                ans++;
            }
        }
        a = b;
    }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:23: error: expected ';' before 'first'
   13 |             up = a < b
      |                       ^
      |                       ;
   14 |             first = false;
      |             ~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <set>
#include <queue>
#include <string>
#include <string.h>
#include <deque>
#include <functional>
#include <tuple>
#include <stdio.h>

using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<ll> vec;
typedef vector<vec> vec2;

//for文
#define FOR(i,a,b) for(ll i = (ll)a;i < (ll)b;i++)
#define FORE(i,a,b) for(ll i = (ll) a;i <= (ll) b;i++ )
#define REP(i,size_of_array)  for(ll i =(ll)0;i<size_of_array;i++)
#define REPE(i,size_of_array)  for(ll i =(ll)0;i<=size_of_array;i++)
#define REPR(i,size_of_array)  for(ll i =(ll)size_of_array;i>=0;i--)

//ソート
#define ALL(vec) (vec).begin(),(vec).end()
#define SORT(vec) sort(ALL(vec))
#define INVSORT(vec) sort((vec).rbegin(),(vec).rend())

//最大値最小値
#define MAX(vec) *max_element(ALL(vec))
#define UNIQ(vec) SORT(vec);vec.erase(unique(ALL(vec)),vec.end())
#define MIN(vec) *min_element(ALL(vec))

//表示
#define printl(a) cout << a << endl
#define print(a) cout << a
#define SP cout << " "

//入力
#define inputV(vec) REP(i,vec.size()){cin >> vec[i];}
#define input(a) cin >> a

//型
#define float ld
#define double ld
#define P pair<ll,ll>
#define vp vector<P>
#define F first
#define S second

//特殊
#define int ll
#define DEBUG(x) cerr << #x << ":" << x<<endl
#define  DEBUGV(V) REP(i,V.size()){cerr << #V[i] << ":" << V[i]<<endl;}

template<class T> inline void umax(T &a,const T &b) { if(a < b) a = b; }
template<class T> inline void uhmin(T &a,const T &b) { if(a > b) a = b; }

const ll INF = LLONG_MAX;
const ld EPS = 1e-8;

signed main(){
    ll N;
    input(N);
    vec A(N);
    inputV(A);
    ll cnt = 0;
    bool dec = false;
    bool inc = false;
    FOR(i,1,A.size()){
        if(A[i-1] > A[i]) dec = true;
        else if(A[i-1] < A[i] ) inc = true;

        if(dec and inc){
            dec = false;
            inc = false;
            cnt++;
        }
        DEBUG(cnt);
    }

    print(++cnt);
}




Compiler output:
a.cc:63:16: error: 'LLONG_MAX' was not declared in this scope
   63 | const ll INF = LLONG_MAX;
      |                ^~~~~~~~~
a.cc:12:1: note: 'LLONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
   11 | #include <functional>
  +++ |+#include <climits>
   12 | #include <tuple>
Language: C++

#include <bits/stdc++.h>
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define mid ((x + y) / 2)
#define left (ind * 2)
#define right (ind * 2 + 1)
#define mp make_pair
#define timer ((double)clock() / CLOCKS_PER_SEC)
#define endl "\n"
#define spc " "
#define d1(x) cerr<<#x<<":"<<x<<endl
#define d2(x, y) cerr<<#x<<":"<<x<<" "<<#y<<":"<<y<<endl
#define d3(x, y, z) cerr<<#x<<":"<<x<<" "<<#y<<":"<<y<<" "<<#z<<":"<<z<<endl
#define fast_io() ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
using namespace std;

typedef long long int lli;
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<double, double> dd;

const int N = (int)(1e6 + 5);
const int LOG = (int)(20);

int n, ar[N], ls, a[N], ans = 1, ans2 = 1;
bool fl;

int main() {
	fast_io();
	// freopen("inp.in", "r", stdin);
	
	cin >> n;
	for(int i = 1; i <= n; i++)
		cin >> t[i];

	int ind = 0;
	for(int i = 1; i < n; i++) {
		if(t[i] == t[i + 1])
			continue;
		else
			ar[++ind] = t[i];
	}
	n = ind;

	fl = ar[1] < ar[2];
	for(int i = 2; i <= n; i++) {
		if(fl) {
			if(ar[i - 1] > ar[i]) {
				ans++;
				fl = ar[i] < ar[i + 1];
			}
		}
		else {
			if(ar[i - 1] < ar[i]) {
				ans++;
				fl = ar[i] < ar[i + 1];
			}
		}
	}
	cout << ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:24: error: 't' was not declared in this scope
   36 |                 cin >> t[i];
      |                        ^
a.cc:40:20: error: 't' was not declared in this scope
   40 |                 if(t[i] == t[i + 1])
      |                    ^
Language: C++

#include<iostream>
using namespace std;

int main(){
  int n;
  cin >> n;
  int a[n];
  for(int i = 0; i < n; i++)cin >> a[i];

  int b[n];
  for(int i = 0; i < n-1; i++)b[i] = a[i+1]-a[i];

  int cnt = 1;
  for(int i = 1; i < n-1; i++){
    if(b[i]*b[i-1]<0 && sign(b[i]) != 0 && sign(b[i-1]) != 0){
      cnt += 1;
      i++;
    }
  }
  cout<<cnt<<endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:25: error: 'sign' was not declared in this scope; did you mean 'signed'?
   15 |     if(b[i]*b[i-1]<0 && sign(b[i]) != 0 && sign(b[i-1]) != 0){
      |                         ^~~~
      |                         signed
Language: C++

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

int main() {
  int N; cin >> N;
  vector<long long> A(N);
  vector<int> A1(0)
  for (int i = 0; i<N; i++) cin >> A[i];
  for (int i = 0; i<N-1; i++) {
    if(A[i+1]>A[i]) A1.push_back(1);
    else if(A[i+1]<A[i]) A1.push_back(-1);
  }
  int cnt = 0;
  for (int i = 0; i<A1.size()-1; i++) if(A1[i+1]!=A1[i]) cnt++;
  cout << cnt;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: expected ',' or ';' before 'for'
    8 |   for (int i = 0; i<N; i++) cin >> A[i];
      |   ^~~
a.cc:8:19: error: 'i' was not declared in this scope
    8 |   for (int i = 0; i<N; i++) cin >> A[i];
      |                   ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#include<bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,A){
      cin >> A[i];
    }
  	rep(i,A){
      ans++;
      while(i+1<n&&a[i]==a[i+1]) i++;
      if(i==n-1) break;
      if(a[i]<=a[i+1]){
      	while(i+1<n&&a[i]<=a[i+1]) i++;
    	}else{
     	 while(i+1<n&&a[i]>=a[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:15: error: cannot convert 'std::vector<long long int>' to 'int' in initialization
   33 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:9:40: note: in definition of macro 'rep'
    9 | #define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:36:15: error: cannot convert 'std::vector<long long int>' to 'int' in initialization
   36 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:9:40: note: in definition of macro 'rep'
    9 | #define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:38:17: error: 'n' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                 ^
a.cc:38:20: error: 'a' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                    ^
a.cc:39:13: error: 'n' was not declared in this scope
   39 |       if(i==n-1) break;
      |             ^
a.cc:40:10: error: 'a' was not declared in this scope
   40 |       if(a[i]<=a[i+1]){
      |          ^
a.cc:41:19: error: 'n' was not declared in this scope
   41 |         while(i+1<n&&a[i]<=a[i+1]) i++;
      |                   ^
a.cc:43:20: error: 'n' was not declared in this scope
   43 |          while(i+1<n&&a[i]>=a[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
typedef long long ll;
#define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,N){
      cin >> A[i];
    }
  	rep(i,N){
      ans++;
      while(i+1<n&&A[i]==A[i+1]) i++;
      if(i==n-1) break;
      if(A[i]<A[i+1]){
      	while(i+1<n&&A[i]<=A[i+1]) i++;
    	}else{
     	 while(i+1<n&&A[i]>=A[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:17: error: 'n' was not declared in this scope
   31 |       while(i+1<n&&A[i]==A[i+1]) i++;
      |                 ^
a.cc:32:13: error: 'n' was not declared in this scope
   32 |       if(i==n-1) break;
      |             ^
a.cc:34:19: error: 'n' was not declared in this scope
   34 |         while(i+1<n&&A[i]<=A[i+1]) i++;
      |                   ^
a.cc:36:20: error: 'n' was not declared in this scope
   36 |          while(i+1<n&&A[i]>=A[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
typedef long long ll;
#define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,N){
      cin >> A[i];
    }
  	rep(i,N){
      ans++;
      while(i+1<n&&a[i]==a[i+1]) i++;
      if(i==n-1) break;
      if(a[i]<a[i+1]){
      	while(i+1<n&&a[i]<=a[i+1]) i++;
    	}else{
     	 while(i+1<n&&a[i]>=a[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:17: error: 'n' was not declared in this scope
   31 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                 ^
a.cc:31:20: error: 'a' was not declared in this scope
   31 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                    ^
a.cc:32:13: error: 'n' was not declared in this scope
   32 |       if(i==n-1) break;
      |             ^
a.cc:33:10: error: 'a' was not declared in this scope
   33 |       if(a[i]<a[i+1]){
      |          ^
a.cc:34:19: error: 'n' was not declared in this scope
   34 |         while(i+1<n&&a[i]<=a[i+1]) i++;
      |                   ^
a.cc:36:20: error: 'n' was not declared in this scope
   36 |          while(i+1<n&&a[i]>=a[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
typedef long long ll;
#define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,A){
      cin >> A[i];
    }
  	rep(i,A){
      ans++;
      while(i+1<n&&a[i]==a[i+1]) i++;
      if(i==n-1) break;
      if(a[i]<a[i+1]){
      	while(i+1<n&&a[i]<=a[i+1]) i++;
    	}else{
     	 while(i+1<n&&a[i]>=a[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:15: error: cannot convert 'std::vector<long long int>' to 'll' {aka 'long long int'} in initialization
   26 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:4:39: note: in definition of macro 'rep'
    4 | #define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
      |                                       ^
a.cc:29:15: error: cannot convert 'std::vector<long long int>' to 'll' {aka 'long long int'} in initialization
   29 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:4:39: note: in definition of macro 'rep'
    4 | #define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
      |                                       ^
a.cc:31:17: error: 'n' was not declared in this scope
   31 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                 ^
a.cc:31:20: error: 'a' was not declared in this scope
   31 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                    ^
a.cc:32:13: error: 'n' was not declared in this scope
   32 |       if(i==n-1) break;
      |             ^
a.cc:33:10: error: 'a' was not declared in this scope
   33 |       if(a[i]<a[i+1]){
      |          ^
a.cc:34:19: error: 'n' was not declared in this scope
   34 |         while(i+1<n&&a[i]<=a[i+1]) i++;
      |                   ^
a.cc:36:20: error: 'n' was not declared in this scope
   36 |          while(i+1<n&&a[i]>=a[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#include<bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
typedef long long ll;
#define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,A){
      cin >> A[i];
    }
  	rep(i,A){
      ans++;
      while(i+1<n&&a[i]==a[i+1]) i++;
      if(i==n-1) break;
      if(a[i]<a[i+1]){
      	while(i+1<n&&a[i]<=a[i+1]) i++;
    	}else{
     	 while(i+1<n&&a[i]>=a[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc:11:9: warning: "rep" redefined
   11 | #define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
      |         ^~~
a.cc:2:9: note: this is the location of the previous definition
    2 | #define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |         ^~~
a.cc: In function 'int main()':
a.cc:33:15: error: cannot convert 'std::vector<long long int>' to 'll' {aka 'long long int'} in initialization
   33 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:11:39: note: in definition of macro 'rep'
   11 | #define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
      |                                       ^
a.cc:36:15: error: cannot convert 'std::vector<long long int>' to 'll' {aka 'long long int'} in initialization
   36 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:11:39: note: in definition of macro 'rep'
   11 | #define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
      |                                       ^
a.cc:38:17: error: 'n' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                 ^
a.cc:38:20: error: 'a' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                    ^
a.cc:39:13: error: 'n' was not declared in this scope
   39 |       if(i==n-1) break;
      |             ^
a.cc:40:10: error: 'a' was not declared in this scope
   40 |       if(a[i]<a[i+1]){
      |          ^
a.cc:41:19: error: 'n' was not declared in this scope
   41 |         while(i+1<n&&a[i]<=a[i+1]) i++;
      |                   ^
a.cc:43:20: error: 'n' was not declared in this scope
   43 |          while(i+1<n&&a[i]>=a[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#include<bits/stdc++.h>
#define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define all(x) (x).begin(),(x).end()
typedef long long ll;
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<58;
 
int main(){
    ll N;
  	ll ans = 0;
  	cin >> N;
  	vector<ll> A(N);
  	rep(i,A){
      cin >> A[i];
    }
  	rep(i,A){
      ans++;
      while(i+1<n&&a[i]==a[i+1]) i++;
      if(i==n-1) break;
      if(a[i]<a[i+1]){
      	while(i+1<n&&a[i]<=a[i+1]) i++;
    	}else{
     	 while(i+1<n&&a[i]>=a[i+1]) i++;
    	}
      
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:15: error: cannot convert 'std::vector<long long int>' to 'int' in initialization
   33 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:9:40: note: in definition of macro 'rep'
    9 | #define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:36:15: error: cannot convert 'std::vector<long long int>' to 'int' in initialization
   36 |         rep(i,A){
      |               ^
      |               |
      |               std::vector<long long int>
a.cc:9:40: note: in definition of macro 'rep'
    9 | #define rep(i,n) for(int i=0, i##_len=(n); i<i##_len; ++i)
      |                                        ^
a.cc:38:17: error: 'n' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                 ^
a.cc:38:20: error: 'a' was not declared in this scope
   38 |       while(i+1<n&&a[i]==a[i+1]) i++;
      |                    ^
a.cc:39:13: error: 'n' was not declared in this scope
   39 |       if(i==n-1) break;
      |             ^
a.cc:40:10: error: 'a' was not declared in this scope
   40 |       if(a[i]<a[i+1]){
      |          ^
a.cc:41:19: error: 'n' was not declared in this scope
   41 |         while(i+1<n&&a[i]<=a[i+1]) i++;
      |                   ^
a.cc:43:20: error: 'n' was not declared in this scope
   43 |          while(i+1<n&&a[i]>=a[i+1]) i++;
      |                    ^
Language: C++

#include<bits/stdc++.h>
sing namespce std;
#tyepdef long long ll;

int main(){
  ll N;
  cin>>N;
  vctor<ll> A{

  }(N);
  for(ll i=0;i<N;i++){
    cin>>A[i];
  }
  bool up=false,down=false;
  int CNT=1;
  for(ll i-1;i<N;i++){
    if(A[i]>A[i-1]){
      up=true;
      if(down){
        CNT++;
        up=false;
        down=false
      }
    }
    else if(A[i]<A[i-1]){
      down=true;
      if(up){
        CNT++;
        up=false;
        down=false;
      }
    }
  }
  cout<<CNT<<endl;
}


Compiler output:
a.cc:3:2: error: invalid preprocessing directive #tyepdef
    3 | #tyepdef long long ll;
      |  ^~~~~~~
a.cc:2:1: error: 'sing' does not name a type
    2 | sing namespce std;
      | ^~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'll' was not declared in this scope
    6 |   ll N;
      |   ^~
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>N;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 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:7:8: error: 'N' was not declared in this scope
    7 |   cin>>N;
      |        ^
a.cc:8:3: error: 'vctor' was not declared in this scope
    8 |   vctor<ll> A{
      |   ^~~~~
a.cc:8:13: error: 'A' was not declared in this scope
    8 |   vctor<ll> A{
      |             ^
a.cc:11:9: error: expected ';' before 'i'
   11 |   for(ll i=0;i<N;i++){
      |         ^~
      |         ;
a.cc:11:14: error: 'i' was not declared in this scope
   11 |   for(ll i=0;i<N;i++){
      |              ^
a.cc:16:9: error: expected ';' before 'i'
   16 |   for(ll i-1;i<N;i++){
      |         ^~
      |         ;
a.cc:16:14: error: 'i' was not declared in this scope
   16 |   for(ll i-1;i<N;i++){
      |              ^
a.cc:22:19: error: expected ';' before '}' token
   22 |         down=false
      |                   ^
      |                   ;
   23 |       }
      |       ~            
a.cc:34:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   34 |   cout<<CNT<<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:34:14: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   34 |   cout<<CNT<<endl;
      |              ^~~~
      |              std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

int getSign(int i){
    int res=(i==0:0?(i>0:1?-1));
        return res;
    }

int main(){
  int N;
  cin >> N;
  vector<int> A(N);
  for (int i=0;i<N;i++){
  	cin >> A[i];
  }
  int pre=A[0];
  int sign0=0;
  int sign1;
  int cnt=1;
  for (int i=1;i<N;i++){
  sign1=getSign(A[i]-pre);
    if(sign0*sign1<0){
    cnt++;
  sign0=0;
  }else{
  if(sign0==0 and sign1 !=0)sign0=sign1;  
    }
  pre=A[i];  
  }
 cout <<cnt <<endl;
  return 0;
  
}


Compiler output:
a.cc: In function 'int getSign(int)':
a.cc:5:18: error: expected ')' before ':' token
    5 |     int res=(i==0:0?(i>0:1?-1));
      |             ~    ^
      |                  )
Language: C++

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

int getSign(int i){
    return (i==0:0?(i>0:1?-1));}
 
int main(){
  int N;
  cin >> N;
  vector<int> A(N);
  for (int i=0;i<N;i++){
  	cin >> A[i];
  }
  int pre=A[0];
  int sign0=0;
  int sign1;
  int cnt=1;
  for (int i=1;i<N;i++){
  sign1=getSign(A[i]-pre);
    if(sign0*sign1<0){
    cnt++;
  sign0=0;
  }else{
  if(sign0==0 and sign1 !=0)sign0=sign1;  
    }
  pre=A[i];  
  }
 cout <<cnt <<endl;
  return 0;
  
}


Compiler output:
a.cc: In function 'int getSign(int)':
a.cc:5:17: error: expected ')' before ':' token
    5 |     return (i==0:0?(i>0:1?-1));}
      |            ~    ^
      |                 )
Language: C++

#include<iostream>

using namespace std;

int main()
{
  int n;
  cin>>n;
  int ans=1;
  int flag=0;
  int bef;
  cin>>bef;
  for(int i=1;i<n;i++)
  {
    int a;
    cin>>a;
    if(flag==0)
    {
      if(a>bef)flag=1;
      if(a<bef)flag=2;
    }
    else if(flag==1)
    {
      if(a<bef)
      {
        ans++;
        flag=0;
      }
    }
    else
    {
      if(a>bef)
      {
        ans++;
        flag=0;
      }
    }
    bef=a;
  }
  cour<<ans<<endl;
}
      
    

Compiler output:
a.cc: In function 'int main()':
a.cc:40:3: error: 'cour' was not declared in this scope
   40 |   cour<<ans<<endl;
      |   ^~~~
Language: C


//#include "pch.h"
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>

#define ll long long
#define fr(i,l,r) for(i=(l);i<(r);i++)
#define min(p,q) ((p)<(q)?(p):(q))
#define max(p,q) ((p)>(q)?(p):(q))
#define INF 1000000000000//10^12



int main(void)
{
	//変数の宣言
	int n;
	int a[100010];

	//よく使う変数
	int i,j,k,l;
	int flag=0;
	int ans=0;
	int count=0;
	int temp,temp1,temp2;
	int max,min;
	int len;
	int sum=0;
	
	
	//データの読み込み
	scanf("%d",&n);
//	scanf_s("%d",&n);

	for(i=0;i<n;i++){
//		scanf("%d",&a[i]);
		scanf_s("%d",&a[i]);
	}

	//	printf("nは%dです\n", n);
	//	printf("データの読み込み終了\n");
	//実際の処理
	
	temp=0;
	ans=1;
	for(i=1;i<n;i++){
		if(temp==0){
			if(a[i]>a[i-1]){
				temp=1;
			}else if(a[i]<a[i-1]){
				temp=-1;
			}
		}else if(a[i]>a[i-1]&&temp==-1){
			ans++;
			temp=0;
		}else if(a[i]<a[i-1]&&temp==1){
			ans++;
			temp=0;
		}
	}

	//	printf("計算部分終了\n");
	
	//出力
	
	printf("%d",ans);

	//	printf("結果の出力終了\n");

	
	return 0;
}



Compiler output:
main.c: In function 'main':
main.c:39:17: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
   39 |                 scanf_s("%d",&a[i]);
      |                 ^~~~~~~
      |                 scanf
Language: C++

int main() {
    int n;
    cin >> n;
    long a[110000];
    bool u;
    bool d;
    int c = 1;
    for(int i = 0; i < n; i++) cin >> a[i];
    for(int i = 0; i < n - 1; i++)
    {   
        if(a[i] < a[i+1]) u = true;
        if(a[i] > a[i+1]) d = true;
        if(u && d){
            u = d = false;
            c++;
        }       
    }
    cout << c << endl; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> n;
      |     ^~~
a.cc:18:5: error: 'cout' was not declared in this scope
   18 |     cout << c << endl;
      |     ^~~~
a.cc:18:18: error: 'endl' was not declared in this scope
   18 |     cout << c << endl;
      |                  ^~~~
Language: C++

#include <stdio.h>
#include <cstdlib>
#include <iostream>

using namespace std;

int count(const int *array, int size) {
    enum Arranged {
        None = -1,
        Ascending,
        Descending
    };

    int splitNum = 0;
    Arranged arranged = array[0] < array[1] ? Ascending : Descending;
    Arranged prevState = arranged;
    for (int i = 1; i < size - 1; ++i) {
        if ((arranged == Ascending && array[i] > array[i + 1]) || (arranged == Descending && array[i] < array[i + 1])) {
            splitNum++;
            i++;
            arranged = array[i] < array[i + 1] ? Ascending : Descending;
        }
    }

    return splitNum + 1;
}

int main() {
    int *array;
    int array_len;

    cin>>array_len;
    if (array_len == 1) {
        printf("0");
        return 0;
    }
    array = (int*)malloc((size_t)array_len);

    for (int i = 0; i < size; ++i) cin>>array[i];
    printf("%d", count(array, array_len));

    free(array);

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:23: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<'
   39 |     for (int i = 0; i < size; ++i) cin>>array[i];
      |                     ~~^~~~~~
Language: C++

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

int main() {
  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i ++) {
    cin >> a.at(i);
  }
  decltype(v)::iterator result = unique(a.begin(), a.end());
  a.erase(result, a.end());

  int cnt = 1;
  for (int i = 1; i < a.size(); i ++) {
    bool incre1 = a.at(i - 1) < a.at(i);
    bool incre2 = a.at(i) < a.at(i + 1);
    if (incre1 != incre2) {
      cnt ++;
      i ++;
    }
  }

  cout << cnt << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:12: error: 'v' was not declared in this scope
   11 |   decltype(v)::iterator result = unique(a.begin(), a.end());
      |            ^
a.cc:11:25: error: expected initializer before 'result'
   11 |   decltype(v)::iterator result = unique(a.begin(), a.end());
      |                         ^~~~~~
a.cc:12:11: error: 'result' was not declared in this scope
   12 |   a.erase(result, a.end());
      |           ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
long long n,a[100010];
int main(){
  cin>>n;
  for(int i=0;i<n;++i){cin>>k[i];}
  long long ans=1,mon=0;
  for(int i=0;i<n-1;++i){
    if(mon==0){
      if(k[i]<k[i+1])
        mon=1;
      else if(k[i]>k[i+1])
        mon=-1;
    }
    else if(mon>0){
      if(k[i]>k[i+1]){
        ++ans;
        mon=0;
      }
    }
    else if(mon<0){
      if(k[i]<k[i+1]){
        ++ans;
        mon=0;
      }
    }
  } 
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:29: error: 'k' was not declared in this scope
    6 |   for(int i=0;i<n;++i){cin>>k[i];}
      |                             ^
a.cc:10:10: error: 'k' was not declared in this scope
   10 |       if(k[i]<k[i+1])
      |          ^
a.cc:16:10: error: 'k' was not declared in this scope
   16 |       if(k[i]>k[i+1]){
      |          ^
a.cc:22:10: error: 'k' was not declared in this scope
   22 |       if(k[i]<k[i+1]){
      |          ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
	long long n,a[10005],cnt=1,flag=2;
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i];
	for(int i=1;i<n;i++)
	{
		if(a[i]<a[i+1]&&flag!=1) flag=0;
		if(a[i]>a[i+1]&&flag!=0) flag=1;
		if(a[i]<a[i+1]&&flag==1)
		{
			cnt++;
			flag=2;
		}
		if(a[i]>a[i+1]&&flag==0)
		{
			cnt++;
			flag=2;
		}
	}
	cout<<cnt<<endl;
	return 0;
}
			flag=2;
		}
		if(a[i]>a[i+1]&&flag==0)
		{
			cnt++;
			flag=2;
		}
	}
	cout<<cnt<<endl;
	return 0;
}

Compiler output:
a.cc:26:25: error: 'flag' does not name a type
   26 |                         flag=2;
      |                         ^~~~
a.cc:27:17: error: expected declaration before '}' token
   27 |                 }
      |                 ^
a.cc:28:17: error: expected unqualified-id before 'if'
   28 |                 if(a[i]>a[i+1]&&flag==0)
      |                 ^~
a.cc:33:9: error: expected declaration before '}' token
   33 |         }
      |         ^
a.cc:34:9: error: 'cout' does not name a type
   34 |         cout<<cnt<<endl;
      |         ^~~~
a.cc:35:9: error: expected unqualified-id before 'return'
   35 |         return 0;
      |         ^~~~~~
a.cc:36:1: error: expected declaration before '}' token
   36 | }
      | ^
Language: C++

import pdb


def main():
    num = int(input())
    array = []
    tmp = input()
    for i in range(num):
        array.append(int(tmp.split()[i]))
        
    ans = 1
    div = 0
    prev = 0
    count = 0

    #pdb.set_trace()
    for tmp in array:
        if(count == 0):
            prev = tmp
            count = 1
            continue

        if prev < tmp and div == -1:
            ans += 1
            div = 0
            prev = tmp
            continue
        elif prev > tmp and div == 1:
            ans += 1
            div = 0
            prev = tmp
            continue

        if div == 0:
            if prev < tmp:
                div = 1
            elif prev > tmp:
                div = -1

        prev = tmp
        
    print(ans)

        
if __name__ == '__main__':
    main()


Compiler output:
a.cc:16:6: error: invalid preprocessing directive #pdb
   16 |     #pdb.set_trace()
      |      ^~~
a.cc:45:16: warning: multi-character literal with 8 characters exceeds 'int' size of 4 bytes
   45 | if __name__ == '__main__':
      |                ^~~~~~~~~~
a.cc:1:1: error: 'import' does not name a type
    1 | import pdb
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int;
signed main()
{
  int N;
  cin >> N;
  vector<int> a(N), b(N - 1);
  for (int i = 0; i < N; i++)
    cin >> a[i];
  for (int i = 0; i < N - 1; i++)
    b[i] = a[i + 1] - a[i];
  int ans = 1;
  for (int i = 0; i < N - 2; i++)
  {
    if (b[i] * b[i + 1] < 0)
    {
      ans++;
      i++;
    }
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc:3:19: error: declaration does not declare anything [-fpermissive]
    3 | typedef long long int;
      |                   ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int N;
  cin >> N;
  vector<int> A(N+3);
  for(int i=0;i<N;i++){cin >> A[i];}
  int count=0;
  for(int i=0;i<N;i++){
    

Compiler output:
a.cc: In function 'int main()':
a.cc:10:24: error: expected '}' at end of input
   10 |   for(int i=0;i<N;i++){
      |                       ~^
a.cc:10:24: error: expected '}' at end of input
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

#define rp(i,n) for(int i=0;i<n;i++)
#define rep(i,m,n) for(int i=m;i<=n;i++)
#define lrp(i,n) for(long long i=0;i<n;i++)
#define lrep(i,m,n) for(long long i=m;i<=n;i++)
#define sort(a) sort(a.begin(),a.end())
#define reverse(a) reverse(a.begin(),a.end())
#define pb push_back
#define elif else if
#define unique(a) a.erase(unique(a.begin(),a.end()),a.end())
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<string> vs;
typedef vector<char> vc;
typedef long long ll;
typedef string S;
typedef queue<int> qi;

int main(){
    ll n;
    cin >> n;
    vl a(n);
    lrp(i,n){
        cin >> a.at(i);
    }
    ll ans=0;
    lrp(i,n){
        if(i<n-1&&a.at(i)<a.at(i+1)){
            while(i<n-1&&a.at(i)<=a.at(i+1)){
                i++;
            }
            ans++;
        }elif(i<n-1&&a.at(i)>a.at(i+1)){
            while(i<n-1&&a.at(i)=>a.at(i+1)){
                i++;
            }
            ans++;
        }elif(i<n-1&&a.at(i)==a.at(i+1)){
            continue;
        }elif(i==n-1){
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:34: error: expected primary-expression before '>' token
   36 |             while(i<n-1&&a.at(i)=>a.at(i+1)){
      |                                  ^
Language: C

#include <iostream>
using namespace std;

int n, a[100000], b[100000];
int main()
{
    int n;
    scanf("%d",&n);
    for(int i = 0;i < n; i++) 
        cin>>a[i];
    int x, y;
    for(int i = 0;i < n; i++) {
        b[i+1] = 0x3f3f3f3f;
        if(i>=1 && a[i-1]>a[i]) x = i;
        else b[i+1] = b[x]+1;
        if(i>=1 && a[i-1]<a[i]) y = i;
        else b[i+1] = min(b[i+1],b[y]+1); 
    }
    cout<<b[n]<<endl;  
return 0;
}

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

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

typedef long long ll;

int main()
{
    int n,ans=0,f=0;
    cin >> n;
    vector<int>a(n);
    rep(i, n) cin >> a[i];
    rep(i,n-1){
        if(f==0){
            if (a[i] < f[i + 1])
                f = 1;
            else if(a[i] < f[i + 1])
                f = 2;
        }
        else if (f == 1 && a[i] > f[i + 1]){
            f = 0;
            ans++;
        }
        else if (f == 2 && a[i] < f[i + 1]){
            f = 0;
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:25: error: invalid types 'int[int]' for array subscript
   16 |             if (a[i] < f[i + 1])
      |                         ^
a.cc:18:29: error: invalid types 'int[int]' for array subscript
   18 |             else if(a[i] < f[i + 1])
      |                             ^
a.cc:21:36: error: invalid types 'int[int]' for array subscript
   21 |         else if (f == 1 && a[i] > f[i + 1]){
      |                                    ^
a.cc:25:36: error: invalid types 'int[int]' for array subscript
   25 |         else if (f == 2 && a[i] < f[i + 1]){
      |                                    ^
Language: C++

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

typedef long long ll;

int main()
{
    int n,ans=0,f=0;
    cin >> n;
    vector<int>a(n);
    rep(i, n) cin >> a[i];
    rep(i,1,n-1){
        if(f==0){
            if (a[i] < f[i + 1])
                f = 1;
            else if(a[i] < f[i + 1])
                f = 2;
        }
        else if (f == 1 && a[i] > f[i + 1]){
            f = 0;
            ans++;
        }
        else if (f == 2 && a[i] < f[i + 1]){
            f = 0;
            ans++;
        }
    }
    cout << ans << endl;
    return 0;
}


Compiler output:
a.cc:14:16: error: macro "rep" passed 3 arguments, but takes just 2
   14 |     rep(i,1,n-1){
      |                ^
a.cc:4:9: note: macro "rep" defined here
    4 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |         ^~~
a.cc: In function 'int main()':
a.cc:14:5: error: 'rep' was not declared in this scope
   14 |     rep(i,1,n-1){
      |     ^~~
Language: C++

#include<iostream>
#include<string.h>
#include<algorithm>
#include<vector>
#include<cmath>
#define ll long long 
#define r(i,n) for(ll i=0;i<n;i++)
#define rp(i,a,b) for(ll i=a;i<b;i++)
#define ret return 
#define elif else if
#define p(x) cout<<x<<endl;
ll inf=100001;
using namespace std;
int main(){
	while(1){
	ll n;cin>>n;ll a[n];r(i,n)cin>>a[i];
	ll a=0,s=0,ct=0;
	r(i,n-1){
		if(a[i]<a[i+1]){a=1;}
		elif(a[i]>a[i+1]){s=1;}
		else{continue;}
		if((a+s)==2){ct++;a=s=0;}
	}p(ct+1)
	
	
	
	ret 0;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: conflicting declaration 'long long int a'
   17 |         ll a=0,s=0,ct=0;
      |            ^
a.cc:16:24: note: previous declaration as 'long long int a [n]'
   16 |         ll n;cin>>n;ll a[n];r(i,n)cin>>a[i];
      |                        ^
a.cc:19:34: error: incompatible types in assignment of 'int' to 'long long int [n]'
   19 |                 if(a[i]<a[i+1]){a=1;}
      |                                 ~^~
a.cc:22:25: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   22 |                 if((a+s)==2){ct++;a=s=0;}
      |                    ~~~~~^~~
a.cc:22:36: error: incompatible types in assignment of 'long long int' to 'long long int [n]'
   22 |                 if((a+s)==2){ct++;a=s=0;}
      |                                   ~^~~~
Language: C++

#include <iostream>
using namespace std;
int a[100005];
#define rep(i,n) for(int (i)=0; (i)<(n); (i)++)
#define CONST_RETURN(a) do{cout << (a) << endl; return 0; }while(0)

int main(){
  int n;
  cin >> n;
  if(n==1) CONST_RETURN(1);
  rep(i,n) cin >> a[i];
  int ans = 1,mode = 0;
  int mode = 0;
  rep(i,n-1){
    if(mode==1 && a[i+1]<a[i]){ans++;mode=0;}
    else if(mode == -1 && a[i+1]>a[i]){ans++;mode=0;}
    else if(mode == 0 && a[i+1] > a[i]) mode = 1;
    else if(mode == 0 && a[i+1] < a[i]) mode = -1;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:7: error: redeclaration of 'int mode'
   13 |   int mode = 0;
      |       ^~~~
a.cc:12:15: note: 'int mode' previously declared here
   12 |   int ans = 1,mode = 0;
      |               ^~~~