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

#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstdio>
#include <stack>
using namespace std;
#define rep(i,n) for (int i=0 ; i<(n);i++)
#define INF 1e9+7
int main(){
	int n;
	bool f = false;
	cin >> n;
	vector <int> a(n);
	rep(i, n)
		cin >> a[i];
	sort(a.begin(), a.end());
	if (n % 2) { //奇数
		for (int i = 1; i < n / 2; i++)
			if (a[2 * i-1] != a[2 * i])
				f = true;
		if (f)
			cout << 0;
		else
			cout << (pow(2, a.size()/2))%1000000007;
	}

	else { //偶数
		rep(i, n/2)
			if (a[2 * i] != a[2 * i + 1])
				f = true;
		if (f)
			cout << 0;
		else
			cout << (pow(2, a.size()/2))%1000000007;
	}

}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:53: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'int' to binary 'operator%'
   26 |                         cout << (pow(2, a.size()/2))%1000000007;
      |                                 ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
      |                                     |                |
      |                                     |                int
      |                                     __gnu_cxx::__promote<double>::__type {aka double}
a.cc:36:53: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'int' to binary 'operator%'
   36 |                         cout << (pow(2, a.size()/2))%1000000007;
      |                                 ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
      |                                     |                |
      |                                     |                int
      |                                     __gnu_cxx::__promote<double>::__type {aka double}
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1e9+7;
map<int,int>d;
inline int solve(int x){
    if(d[x]!=0) return d[x];
    else
    return d[x]=((solve(x/2)+solve((x-1)/2)+solve((x-2)/2)))%mod;
}
signed main(){
    d[0]=1;d[1]=2;
    int n;
    cin>>n;
    n=read(); 
    int ans=solve(n);
    printf("%lld\n",ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: too few arguments to function 'ssize_t read(int, void*, size_t)'
   15 |     n=read();
      |       ~~~~^~
In file included from /usr/include/x86_64-linux-gnu/bits/sigstksz.h:24,
                 from /usr/include/signal.h:328,
                 from /usr/include/c++/14/csignal:42,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:116,
                 from a.cc:1:
/usr/include/unistd.h:371:16: note: declared here
  371 | extern ssize_t read (int __fd, void *__buf, size_t __nbytes) __wur
      |                ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
const ll m=1e9+7;
map<int,int>d;
ll p(l x){
if(d[x]!=0)return d[x];
else return d[x]=((p(x/2)+p((x-1)/2)+p((x-2)/2)))%m;
}
int main(){
d[0]=1;d[1]=2;
int n;
scanf ("%d",&n);
int ans=p(n);
printf("%lld\n",ans);
return 0;}

Compiler output:
a.cc:6:6: error: 'l' was not declared in this scope
    6 | ll p(l x){
      |      ^
a.cc: In function 'int main()':
a.cc:14:10: error: 'p' cannot be used as a function
   14 | int ans=p(n);
      |         ~^~~
Language: C++

#include<iostream>
#include<map>
using namespace std;
const long long mod=1e9+7;
map<long long,long long> d;
long long dx(long long x)
{
    if(d[x]!=0){
        return d[x];
    }
    else{
        return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
    }
}
int main()
{
    d[0]=1;
    d[1]=2;
    long long n;
    cin>>n;
    cout<<dx(n)<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'long long int dx(long long int)':
a.cc:12:23: error: 'solve' was not declared in this scope
   12 |         return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
      |                       ^~~~~
a.cc:12:65: error: expected primary-expression before ')' token
   12 |         return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
      |                                                                 ^
Language: C++

#include<iostream>
#include<map>
using namespace std;
const long long mod=1e9+7;
map<long long,long long> d;
long long dx(long long n)
{
    if(d[x]!=0){
        return d[x];
    }
    else{
        return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
    }
}
int main()
{
    d[0]=1;
    d[1]=2;
    long long n;
    cin>>n;
    cout<<dx(n)<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'long long int dx(long long int)':
a.cc:8:10: error: 'x' was not declared in this scope
    8 |     if(d[x]!=0){
      |          ^
a.cc:12:23: error: 'solve' was not declared in this scope
   12 |         return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
      |                       ^~~~~
a.cc:12:65: error: expected primary-expression before ')' token
   12 |         return d[x]=((solve(x>>1)+solve((x-1)>>1)+solve((x-2)>>!)))%mod;
      |                                                                 ^
Language: C++

#include<bits/stdc++.h>
#define ll long long
using namespace std;
map<ll,ll>dp;
ll mod=1e9+7;
ll f(ll x)
{
    if(x==0)return dp[0]=1;
    else if(x==1)return dp[1]=2;
    else if(dp[x])return dp[x];
    else
    {
    return dp[x]=(f(x/2)+f((x-1)/2)+f((x-2)/2))%mod;
    }
}
int main()
{
    ll x;
    cin>>x;
    cout<<f(x)<<endl;
}
————————————————
版权声明：本文为CSDN博主「凌晨四点的洛杉矶fly」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/qq_40859951/article/details/90612148

Compiler output:
a.cc:22:1: error: extended character — is not valid in an identifier
   22 | ————————————————
      | ^
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:22:1: error: extended character — is not valid in an identifier
a.cc:23:1: error: extended character 「 is not valid in an identifier
   23 | 版权声明：本文为CSDN博主「凌晨四点的洛杉矶fly」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
      | ^
a.cc:23:1: error: extended character 」 is not valid in an identifier
a.cc:23:78: error: extended character 。 is not valid in an identifier
   23 | 版权声明：本文为CSDN博主「凌晨四点的洛杉矶fly」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
      |                                                                              ^
a.cc:22:1: error: '\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014\U00002014' does not name a type
   22 | ————————————————
      | ^~~~~~~~~~~~~~~~
Language: C++

// luogu-judger-enable-o2
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1e9+7;
map<int,int>d;
inline int read() 
{
    char ch=getchar();
    int x=0,q=1;
    while(ch>'9' || ch<'0')q=ch==45?-1:q,ch=getchar();
    while(ch>='0' && ch<='9')x=(x<<1)+(x<<3)+(ch^'0'),ch=getchar();
    return x*q;
}
inline int solve(int x)/
{
    if(d[x]!=0)
        return d[x];
    else
    return d[x]=((solve(x/2)+solve((x-1)/2)+solve((x-2)/2)))%mod;
}
signed main()
{
    d[0]=1;
    d[1]=2;  
    int n;
    n=read(); 
    int ans=solve(n);
    printf("%lld\n",ans);
    return 0;
}

Compiler output:
a.cc:15:24: error: expected initializer before '/' token
   15 | inline int solve(int x)/
      |                        ^
a.cc: In function 'int main()':
a.cc:28:13: error: 'solve' was not declared in this scope
   28 |     int ans=solve(n);
      |             ^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1e9+7;
map<int,int>d;
inline int read() {
	char ch=getchar();
	int x=0,q=1;
	while(ch>'9' || ch<'0')q=ch==45?-1:q,ch=getchar();
	while(ch>='0' && ch<='9')x=(x<<1)+(x<<3)+(ch^'0'),ch=getchar();
	return x*q;
}
inline int solve(int x) {
	if(d[x]!=0)
		return d[x];
	else
		return d[x]=((solve(x/2)+solve((x-1)/2)+solve((x-2)/2)))%mod;
}
int main() {
	d[0]=1;
	d[1]=2;
	int n;
	n=read();
	int ans=solve(n);
	printf("%lld\n",ans);
	return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include<cstdio>
using namespace std;
int n,m,sum1,sum2,a[110],p,x;
int main()
{
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
    {
        scanf("%d",&a[i]);
        sum1+=a[i];
    }
    scanf("%d",&m);
    sum2=sum1;
    while(m--)
    {
        scanf("%d%d",&p,&x);
        if(x>=a[p-1]) sum1+=x-a[p-1];拟
        else sum1-=a[p-1]-x;
        printf("%d\n",sum1);
        sum1=sum2;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:38: error: '\U000062df' was not declared in this scope
   17 |         if(x>=a[p-1]) sum1+=x-a[p-1];拟
      |                                      ^~
Language: C++

#include<iostream>
#include<cstdio>
#include<string>
using namespace std;
typedef __int64 ll;
const int INF = 1<<30;
const int MAXN = (int) 7e6+11;
const int MAX_SIZE = 40;
struct Node {
	ll val;
	int ch[2];
} Trie[MAXN];
int use;
ll S[MAX_SIZE];
int n, m;
int New() {
	Trie[use].val = Trie[use].ch[0] = Trie[use].ch[1] = 0;
	return use++;
}
inline void change(ll x) {
	for (int i = MAX_SIZE-1; i >= 0; i--) {
		S[i] = x&1;
		x >>= 1;
	}
}
void insert(ll x) {
	change(x);

	int p = 0;
	for (int i = 0; i < MAX_SIZE; i++) {
		if (!Trie[p].ch[S[i]]) Trie[p].ch[S[i]] = New();
		p = Trie[p].ch[S[i]];
	}
	Trie[p].val = x;
}
ll find(ll x) {
	change(x);
	int p = 0;
	for (int i = 0; i < MAX_SIZE; i++) {
		int now;
		if (Trie[p].ch[S[i]^1]) p = Trie[p].ch[S[i]^1];
		else p = Trie[p].ch[S[i]];
	}
	return Trie[p].val;
}
int main() {
	int T;
	scanf("%d", &T);
	for (int Case = 1; Case <= T; Case++) {
		printf("Case #%d:\n", Case);
		use = 0;
		New();
		scanf("%d%d", &n, &m);
		for (int i = 0; i < n; i++) {
			ll x;
			scanf("%I64d", &x);
			insert(x);
		}
		for (int i = 0; i < m; i++) {
			ll x;
			scanf("%I64d", &x);
			printf("%I64d\n", find(x));
		}
	}
	return 0;
}

Compiler output:
a.cc:5:9: error: '__int64' does not name a type; did you mean '__int64_t'?
    5 | typedef __int64 ll;
      |         ^~~~~~~
      |         __int64_t
a.cc:10:9: error: 'll' does not name a type
   10 |         ll val;
      |         ^~
a.cc:14:1: error: 'll' does not name a type
   14 | ll S[MAX_SIZE];
      | ^~
a.cc: In function 'int New()':
a.cc:17:19: error: 'struct Node' has no member named 'val'
   17 |         Trie[use].val = Trie[use].ch[0] = Trie[use].ch[1] = 0;
      |                   ^~~
a.cc: At global scope:
a.cc:20:13: error: variable or field 'change' declared void
   20 | inline void change(ll x) {
      |             ^~~~~~
a.cc:20:20: error: 'll' was not declared in this scope
   20 | inline void change(ll x) {
      |                    ^~
a.cc:26:6: error: variable or field 'insert' declared void
   26 | void insert(ll x) {
      |      ^~~~~~
a.cc:26:13: error: 'll' was not declared in this scope
   26 | void insert(ll x) {
      |             ^~
a.cc:36:1: error: 'll' does not name a type
   36 | ll find(ll x) {
      | ^~
a.cc: In function 'int main()':
a.cc:55:25: error: 'll' was not declared in this scope
   55 |                         ll x;
      |                         ^~
a.cc:56:41: error: 'x' was not declared in this scope
   56 |                         scanf("%I64d", &x);
      |                                         ^
a.cc:57:25: error: 'insert' was not declared in this scope
   57 |                         insert(x);
      |                         ^~~~~~
a.cc:60:25: error: 'll' was not declared in this scope
   60 |                         ll x;
      |                         ^~
a.cc:61:41: error: 'x' was not declared in this scope
   61 |                         scanf("%I64d", &x);
      |                                         ^
Language: C++

#include <algorithm>
#include <iostream>
#include <cstring>
#include <cstdio>
#include <string>
#include <vector>
#include <queue>
#include <stack>
#include <cmath>
#include <map>
#include <set>
#define mm(i,v) memset(i,v,sizeof i);
using namespace std;
typedef long long ll;
const int mod=1e9+7;
//map<ll,ll> v;

ll f(int x){
	if(x==0)
		return 1;
	if(x==1)
		return 2;
	return f(x/2)+f((x-1)/2)+f((x-2)/2)%mod;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	v[0]=1;
	v[1]=2;
	ll n;
	cin>>n;
	cout<<f(n)<<"\n";
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:9: error: 'v' was not declared in this scope
   29 |         v[0]=1;
      |         ^
Language: C++

#include<map>
#include<iostream>
using namespace std;
typedef unsigned long long inter;
const inter m=1e9+7;
map<inter,inter> dick;
inter f(inter x)
{
    if(dick[x])
        return dick[x];
    else
    return dick[x]=((f(x/2)+f((x-1)/2)+f((x-2)/2)))%m;
}
int main()
{
    dick[0]=1;
    dick[1]=2;
    inter n;
    cin>>n;
    cout<<f(n);

    work();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:5: error: 'work' was not declared in this scope
   22 |     work();
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
const  long long mod=1e9+7;
map<long long,long long>dp;
long long Dp(long long x)
{
	if(dp[x])
	return dp[x];
	else
	return dp[x]=((Dp[x/2])+Dp[(x-1)/2]+Dp[(x-2)/2])%mod;
}      
int main(){
	Dp[0]=1;
	Dp[1]=2;
	long long n;
	cin>>n;
	cout<<Dp[n];
	return 0;
}

Compiler output:
a.cc: In function 'long long int Dp(long long int)':
a.cc:10:30: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   10 |         return dp[x]=((Dp[x/2])+Dp[(x-1)/2]+Dp[(x-2)/2])%mod;
      |                              ^
a.cc:10:43: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   10 |         return dp[x]=((Dp[x/2])+Dp[(x-1)/2]+Dp[(x-2)/2])%mod;
      |                                           ^
a.cc:10:32: error: invalid operands of types 'long long int(long long int)' and 'long long int(long long int)' to binary 'operator+'
   10 |         return dp[x]=((Dp[x/2])+Dp[(x-1)/2]+Dp[(x-2)/2])%mod;
      |                       ~~~~~~~~~^~~~~~~~~~~~
      |                              |            |
      |                              |            long long int(long long int)
      |                              long long int(long long int)
a.cc:10:55: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   10 |         return dp[x]=((Dp[x/2])+Dp[(x-1)/2]+Dp[(x-2)/2])%mod;
      |                                                       ^
a.cc: In function 'int main()':
a.cc:13:13: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   13 |         Dp[0]=1;
      |             ^
a.cc:13:14: error: assignment of read-only location '* Dp'
   13 |         Dp[0]=1;
      |         ~~~~~^~
a.cc:14:13: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   14 |         Dp[1]=2;
      |             ^
a.cc:14:14: error: assignment of read-only location '*(Dp + 1)'
   14 |         Dp[1]=2;
      |         ~~~~~^~
a.cc:17:19: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   17 |         cout<<Dp[n];
      |                   ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1e9+7;
map<int,int>f;
inline int read() 
{
    char ch=getchar();
    int x=0,q=1;
    while(ch>'9' || ch<'0')q=ch==45?-1:q,ch=getchar();
    while(ch>='0' && ch<='9')x=(x<<1)+(x<<3)+(ch^'0'),ch=getchar();
    return x*q;
}
inline int solve(int k)
{
    if(f[k]!=0) return f[k];
    else
    return f[k]=((solve(k/2)+solve((k-1)/2)+solve((k-2)/2)))%mod;
}
int main()
{
    f[0]=1;
    f[1]=2; 
    int n;
    n=read(); 
    int ans=solve(n);
    printf("%lld\n",ans);
    return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long f[2000000001];  
long long n;
long long ans;
long long s=1000000007;
inline int read() 
{
    char ch=getchar();
    int x=0,q=1;
    while(ch>'9' || ch<'0')q=ch==45?-1:q,ch=getchar();
    while(ch>='0' && ch<='9')x=(x<<1)+(x<<3)+(ch^'0'),ch=getchar();
    return x*q;
}
inline int shulun(int k)
{
    if(f[k]!=0)
    {
        return f[k];
    }
    else
    {
    	return f[k]=((shulun(k/2)+shulun((k-1)/2)+shulun((k-2)/2)))%s;
    }
}
signed main()
{
	f[0]=1; 
    f[1]=2; 
    n=read(); 
	ans=shulun(n);
    printf("%d\n",ans);
    return 0;
}

Compiler output:
/tmp/ccY6SglS.o: in function `main':
a.cc:(.text+0x24): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccY6SglS.o
a.cc:(.text+0x2b): relocation truncated to fit: R_X86_64_PC32 against symbol `n' defined in .bss section in /tmp/ccY6SglS.o
a.cc:(.text+0x3b): relocation truncated to fit: R_X86_64_PC32 against symbol `ans' defined in .bss section in /tmp/ccY6SglS.o
a.cc:(.text+0x42): relocation truncated to fit: R_X86_64_PC32 against symbol `ans' defined in .bss section in /tmp/ccY6SglS.o
collect2: error: ld returned 1 exit status
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long n;
int dfs(u){
	if(u==1) return 2;
	if(u==2) return 4;//+2
	if(u==3) return 5;//+1
	if(u==4) return	8;//+3
	if(u==5) return	10;//+2
	if(u==6) return	13;//+3
	if(u==7) return	14;//+1
	if(u==8) return	18;//+4
	if(u==9) return 21;//+3
	if(u==10) return 26;//+5
}
int main(){
	scanf("%d",&n);
	int m=dfs(n);
	printf("%d",m);
	return 0;
} 

Compiler output:
a.cc:4:9: error: 'u' was not declared in this scope
    4 | int dfs(u){
      |         ^
a.cc: In function 'int main()':
a.cc:18:18: error: 'dfs' cannot be used as a function
   18 |         int m=dfs(n);
      |               ~~~^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long 
const int mod=1e9+7;
map<int,int>d;
inline int read() 
{
    char ch=getchar();
    int x=0,q=1;
    while(ch>'9' || ch<'0')q=ch==45?-1:q,ch=getchar();
    while(ch>='0' && ch<='9')x=(x<<1)+(x<<3)+(ch^'0'),ch=getchar();
    return x*q;
}
inline int solve(int x)
{
	if(d[x])
		return d[x];
	else
	return d[x]=((solve(x/2)+solve((x-1)/2)+solve((x-2)/2)))%mod;
}
signed main()
{
	//初始条件
	d[0]=1;//a=b=0一组 
	d[1]=2; //a=b=0一组 ，a=b=1第二组； 
	int n;
	n=read(); 
	int ans=solve(n);
	printf("%lld\n",ans)
	return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:29:29: error: expected ';' before 'return'
   29 |         printf("%lld\n",ans)
      |                             ^
      |                             ;
   30 |         return 0;
      |         ~~~~~~               
a.cc:30:18: error: expected '}' at end of input
   30 |         return 0;
      |                  ^
a.cc:22:1: note: to match this '{'
   22 | {
      | ^
Language: C++

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

typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> P;
typedef pair<ll,P>  PP;
typedef vector<ll> Vector;
typedef vector<Vector> DVector;
typedef priority_queue<PP, vector<PP>, greater<PP>> PPQueue;

#define fi          first
#define se          second
#define sfi         se.fi
#define sse         se.se
#define pb          push_back
#define INF         INT_MAX
#define MOD         1000000007
#define bcnt        __builtin_popcount
#define all(x)      (x).begin(),(x).end()
#define uni(x)      x.erase(unique(all(x)),x.end())
#define ub(x,y)     (upper_bound(all(x),y)-x.begin())
#define lb(x,y)     (lower_bound(all(x),y)-x.begin())
#define rep(i,n)    repl(i,0,n-1)
#define usort(x)    sort(all(x))
#define dsort(x)    sort(all(x),greater<ll>())
#define mkp(x,y)    make_pair(x,y)
#define mmax(x,y)   (x>y?x:y)
#define mmin(x,y)   (x<y?x:y)
#define maxch(x,y)  x=mmax(x,y)
#define minch(x,y)  x=mmin(x,y)
#define exist(x,y)  (find(all(x),y)!=x.end())
#define each(itr,v) for(auto itr:v)
#define repl(i,a,b) for(ll i=(ll)(a);i<=(ll)(b);i++)
map<P,ll> memp;

ll f(ll s, ll x) {
  P m(s,x);
  if(memo.count(m))return memo[m];
  if(s == 0)return 1;
  memo[m] = f(s/2, x/2) + f((s-1)/2, (x^1)/2) % MOD;
  if(s >= 2) memo[m] += f((s-2)/2, x/2);
  return memo[m] %= MOD;
}

int main() {
  cin.sync_with_stdio(false);
  ll n;
  cin >> n;
  cout << f(n, n) << endl;
}


Compiler output:
a.cc: In function 'll f(ll, ll)':
a.cc:39:6: error: 'memo' was not declared in this scope; did you mean 'memp'?
   39 |   if(memo.count(m))return memo[m];
      |      ^~~~
      |      memp
a.cc:41:3: error: 'memo' was not declared in this scope; did you mean 'memp'?
   41 |   memo[m] = f(s/2, x/2) + f((s-1)/2, (x^1)/2) % MOD;
      |   ^~~~
      |   memp
Language: C++

import java.util.*;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		final long N = sc.nextLong();
		long cnt = 0;
		long u, v, a, x;
		for(u = 0; u <= N; u++) {
			for(v = u; v <= N; v++) {
				for(a = 0; a <= v / 2; a++) {
					x = a ^ v - a;
					if(x == u) {
						cnt++;
						break;
					}
				}
			}
		}
		cnt = cnt % (1000000000 + 7);
		System.out.println(cnt);
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

import java.util.*;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		//final long N = sc.nextLong();
		final long N = 1000000000000000000l;
		long cnt = 0;
		long u, v, a, x;
		for(u = 0; u <= N; u++) {
			for(v = u; v <= N; v++) {
				for(a = 0; a <= v / 2; a++) {
					x = a ^ v - a;
					if(x == u) {
						cnt++;
						break;
					}
				}
			}
		}
		cnt = cnt % (1000000000 + 7);
		System.out.println(cnt);
	}
}


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

#include <algorithm>
#include <bitset>
#include <cassert>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
//#include <unordered_set>
//#include <unordered_map>

#define pii pair<int, int>

#define pb push_back
#define mp make_pair

#define f first
#define s second

using namespace std;

typedef long double ld;
typedef long long ll;

const ld PI = acos(-1);
const ld EPS = 1e-6;

const int MOD = (int)1e9 + 7;
const int N = (int)2e5 + 7;

int n;
ll a[66][2][3];
int d[66];

ll call(int len){
  for(int i = 1; i <= len; i++)
  for(int p = 0; p <= 1; p++)
  for(int q = 0; q <= 1; q++)
  for(int a = 0; a <= 1; a++)
  for(int b = a; b <= 1; b++){
    int nq = a + b + q > 1 ? 1 : 0;
    int now = (a + b + q) & 1;
    int np = ((now > d[i]) || (p && now == d[i])) ? 1 : 0;
    dp[i][np][nq] += dp[i-1][p][q];
    dp[i][np][nq] %= MOD;
  }
  return dp[len][0][0];
}

int main() {
  int t;
  ll num;
  scanf("%d", &t);
  while (t--) {
    int bit = 0;
    d[0] = 0;
    dp[0][0][0] = 1;
    scanf("%d", &num);
    while(num){
      d[bit++] = num & 1;
      num >>= 1;
    }
    printf("%d\n", call(bit));
  }
}


Compiler output:
a.cc: In function 'll call(int)':
a.cc:59:5: error: 'dp' was not declared in this scope; did you mean 'np'?
   59 |     dp[i][np][nq] += dp[i-1][p][q];
      |     ^~
      |     np
a.cc:62:10: error: 'dp' was not declared in this scope; did you mean 'd'?
   62 |   return dp[len][0][0];
      |          ^~
      |          d
a.cc: In function 'int main()':
a.cc:72:5: error: 'dp' was not declared in this scope; did you mean 'd'?
   72 |     dp[0][0][0] = 1;
      |     ^~
      |     d
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;

const ll MOD = 1e9 + 7;
map<pll, ll> dp;

ll f(ll s, ll x) {
  if (dp.count(pll(s, x))) return dp[pll(s, x)];
  if (s == 0 && x == 0) return 1;

  ll res = f(s/2, x/2) % MOD;
  if (s >= 1 && x >= 1) {
    res = (res + f((s-1)/2, (x-1)/2)) % MOD;
  }
  if (s >= 2) {
    res = (res + f((s-2)/2, x/2)) % MOD;
  }
  return dp[pll(s, x)] = res;
}

main() {
  ll N;
  cin >> N;
  cout << f(N, N) << endl;
}
 

Compiler output:
a.cc:28:1: error: extended character   is not valid in an identifier
   28 |  
      | ^
a.cc:23:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   23 | main() {
      | ^~~~
a.cc:28:1: error: '\U000000a0' does not name a type
   28 |  
      | ^
Language: C++

#include <stdio.h>
#include <iostream>
#include <map>
#include <bits/stdc++.h>
#define LL long long

using namespace std;

const LL mod=1e9 + 7;
map<LL, LL> mp;

/*
int dp[N];
bool check[N];
*/

LL dfs(LL N){
    if(N==0) return 1;
    if(N==1) return 2;
    if(mp[N] > 0) return mp[N];

    return mp[N] = (dfs(N/2) + dfs((N-1)/2) + dfs((N-2)/2) % mod;
} 

int main(void){
    LL N = 0;
    cin >> N;

    cout << dfs(N) << endl;
    return 0;
}

Compiler output:
a.cc: In function 'long long int dfs(long long int)':
a.cc:22:65: error: expected ')' before ';' token
   22 |     return mp[N] = (dfs(N/2) + dfs((N-1)/2) + dfs((N-2)/2) % mod;
      |                    ~                                            ^
      |                                                                 )
Language: C++

#include <iostream>

using namespace std;

int main()
{
	int N;
	int b;
	int uuu;
	long MOD = pow(10,9) + 7;
	long cnt = 0;
	cin >> N;
	for(int uu=0;uu<=N;uu++)
	{
		for(int vv=0;vv<=N;vv++)
		{
			for(int a=0;a<=vv;a++)
			{
				b = vv-a; //a+b=vv
				uuu = a^b;
				if(b >= 0 && uuu == uu)
				{
					cerr << uu << vv << a << b<<endl;
					cnt++;
					break;
				}
			}
		}
	}
	cout << cnt % MOD << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: 'pow' was not declared in this scope
   10 |         long MOD = pow(10,9) + 7;
      |                    ^~~
Language: C++

#include <iostream>

using namespace std;

int main(){
  int N, flg = 0;
  long long ans = 1, t = 1000000007;
  cin >> N;
  int A[N];
  for (int i = 0; i < N; i++){
    cin >> A[i];
  }

  sort(A, A+N);

  if (N%2 == 0){
    for (int i = 0; i < N; i+=2){
      if(A[i]!=i+1 || A[i+1]!=i+1){
        flg = 1;
        break;
      }
    }
  }else{
    if (A[0] != 0){
      flg = 1;
    }else{
      for (int i = 1; i < N; i+=2){
        if(A[i]!=i+1 || A[i+1]!=i+1){
          flg = 1;
          break;
        }
      }
    }
  }

  if (flg==1){
    printf("0\n");
  }else{
    for (int i=0; i < N/2; i++){
      ans *= 2;
      ans %= t;
    }
    printf("%llu\n",ans);
  }

}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   14 |   sort(A, A+N);
      |   ^~~~
      |   short
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> iint;
typedef pair<ll,ll> llll;
#define ALL(x) (x).begin(),(x).end()
const ll zero = 0;
const ll one = 1;
const ll INF = 9223372036854775807; //10^18
const int inINF = 2147483647; //10^9
const ll MOD = 1000000007; //10^9+7
const ll MOD2 = 998244353;
void Yes() {printf("Yes\n");}
void No() {printf("No\n");}
void YES() {printf("YES\n");}
void NO() {printf("NO\n");}

// nのk乗を計算する
ll modpow(ll n, ll k){
    ll ret = 1;
    ll t = n;
    while(k > 0){
        if(k & 1) ret = ret * t % MOD;
        t = t * t % MOD;
        k = k>>1;
    }
    return ret;
}


int main(){
    int N;
    cin >> N;
    vector<int> a(N);
    for (int i = 0; i < N; i++) {
        cin >> a[i];
    }
    sort(ALL(a));
    bool check;
    if(N % 2 == 0){
        check = true;
        for (int i = 0; i < N; i++) {
            if(a[i] != 2*(i/2) + 1){
                check = false;
            }
        }
    }
    else{
        check = true;
        for (int i = 0; i < N; i++) {
            if(a[i] != 2*((i+1)/2)){
                check = false;
            }
        }
    }

    if(check == false){
        printf("0\n");
        return 0;
    }
    ll ans = modpow(2, n/2);
    printf("%lld\n", ans);

}

Compiler output:
a.cc: In function 'int main()':
a.cc:62:24: error: 'n' was not declared in this scope
   62 |     ll ans = modpow(2, n/2);
      |                        ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> P;
int INF = 1e9+7;
int mod = 1e9+7;
int dx[4] = {1, 0, -1, 0};
int dy[4] = {0, 1, 0, -1};
signed main() {
    int N;
    cin >> N;
    vector<int>A(N);
    map<int,int>Mp;
    for(int i = 0; i < N; i++) {
        cin >> A[i];
        Mp[A[i]]++;
    }
    if(N%2 == 0) {
        // o o o o o o
        // 5 3 1 1 3 5
        for(int i = 1; i < N; i+=2) {
            if(Mp[i] != 2) {
                cout << 0 << endl;
                return 0;
            }
        }
        cout << pow(2,N/2)%INF << endl;
    }
    else {
        // o o o o o
        // 4 2 0 2 4
        for(int i = 0; i < N; i+=2) {
            if(i == 0) {
                if(Mp[i] != 1) {
                    cout << 0 << endl;
                    return 0;
                }
            }
            else if(Mp[i] != 2) {
                cout << 0 << endl;
                return 0;
            }
        }
        cout << pow(2,(N-1)/2)%INF << endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:27: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'long long int' to binary 'operator%'
   27 |         cout << pow(2,N/2)%INF << endl;
      |                 ~~~~~~~~~~^~~~
      |                    |       |
      |                    |       long long int
      |                    __gnu_cxx::__promote<double>::__type {aka double}
a.cc:44:31: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'long long int' to binary 'operator%'
   44 |         cout << pow(2,(N-1)/2)%INF << endl;
      |                 ~~~~~~~~~~~~~~^~~~
      |                    |           |
      |                    |           long long int
      |                    __gnu_cxx::__promote<double>::__type {aka double}
Language: C++

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

const int m=1000000007;

int main(){
  int n;
  cin >> n;
  vi a(n);
  rep(i,n) cin >> a[i];
  sort(a.begin(),a.end());
  int f=n%2;
  ll ans=1;
  if(f==1){
    if(a[0]!=0){cout << 0;return 0;}
    for(int i=1;i<n;i++){
      if(a[i]!=(i+1)/2*2){cout << 0;return 0;}
    }
    rep(i,(n-1)/2){ans*=2;ans%=m}
    cout << ans;
  }else{
    for(int i=0;i<n;i++){
      if(a[i]!=i/2*2+1){cout << 0;return 0;}
    }
    rep(i,n/2){ans*=2;ans%=m}
    cout << ans;
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:33: error: expected ';' before '}' token
   23 |     rep(i,(n-1)/2){ans*=2;ans%=m}
      |                                 ^
      |                                 ;
a.cc:29:29: error: expected ';' before '}' token
   29 |     rep(i,n/2){ans*=2;ans%=m}
      |                             ^
      |                             ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
const ll mod = 1e9+7;

//繰り返し二乗法
ll EX(ll x,ll n){
    if(n == 0) return 1;
    else if(n%2 == 1) return EX(x,n-1)*x%mod;
    else return EX(x*x%mod,n/2)%mod;
};

int main(){
    ll n;
    cin >> n;
    vector<ll> a(n);
    ll tmp = n/2+1;
    vector<ll> mp(tmp,0);
    for(ll i = 0; i < n; i++){
        cin >> a[i];
        mp[a[i]]++;
    }
    /*bool end = false;
    if(mp[0] != 1 && n%2 == 1) end = true;
    else if(mp[0] != 0 && n%2 == 0) end = true; 
    for(ll i = 1; i < tmp; i++){
        if(mp[i] != 2 && mp[i] != 0) end = true;
    }*/
    if(end){
        cout << 0 << endl;
        return 0;
    }
    cout << EX(2,n/2) << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:11: error: cannot resolve overloaded function 'end' based on conversion to type 'bool'
   29 |     if(end){
      |           ^
Language: C++

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

#define ll long long 

ll MOD = 10 ** 9 + 7;

int main() {
  
}

Compiler output:
a.cc:6:14: error: invalid type argument of unary '*' (have 'int')
    6 | ll MOD = 10 ** 9 + 7;
      |              ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
const ll MOD=1000000007;
const double PI=3.14159265358979;
const ll INF= pow(10,18);
typedef pair<ll,ll> P;
typedef vector<ll> vl;
typedef vector<vl> vvl;
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define rep(i,n) FOR(i,0,n)
string abc="abcdefghijklmnopqrstuvwxyz";
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";

ll modpow(ll n,ll a){
  if(a==0){
    return 0;
  }
  else if(a%2==0){
    ll t=modpow(n,a/2);
    return t*t%MOD;
  }
  else
    return n*modpow(n,a-1)%MOD;
}
    
int main() {
  ll n;
  cin >> n;
  vl a(n);
  vl cnt(n);
  rep(i,n){
    cin >> a[i];
    ll cnt[a[i]]++;
  }
  bool B=false;
  ll i=n-1;
  while(i>=0){
    if(i!=0&&cnt[i]!=2){
      B=true;
    }
    if(i==0&&cnt[i]!=1){
      B=true;
    }
    i -=2
  }
  if(B){
    cout << 0 << endl;
  }
  else{
    cout << modpow(2,n/2) << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:17: error: expected initializer before '++' token
   34 |     ll cnt[a[i]]++;
      |                 ^~
a.cc:45:10: error: expected ';' before '}' token
   45 |     i -=2
      |          ^
      |          ;
   46 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
const ll MOD=1000000007;
const double PI=3.14159265358979;
const ll INF= pow(10,18);
typedef pair<ll,ll> P;
typedef vector<ll> vl;
typedef vector<vl> vvl;
#define FOR(i,a,b) for(ll i=a;i<b;i++)
#define rep(i,n) FOR(i,0,n)
string abc="abcdefghijklmnopqrstuvwxyz";
string ABC="ABCDEFGHIJKLMNOPQRSTUVWXYZ";

ll modpow(ll n,ll a){
  if(a==0){
    return 0;
  }
  else if(a%2==0){
    ll t=modpow(n,a/2);
    return t*t%MOD;
  }
  else
    return n*modpow(n,a-1)%MDO;
}
    
int main() {
  ll n;
  cin >> n;
  vl a(n);
  vl cnt(n);
  rep(i,n){
    cin >> a[i];
    ll cnt[a[i]]++;
  }
  bool B=false;
  ll i=n-1;
  while(i>=0){
    if(i!=0&&cnt[i]!=2){
      B=true;
    }
    if(i==0&&cnt[i]!=1){
      B=true;
    }
    i -=2
  }
  if(B){
    cout << 0 << endl;
  }
  else{
    cout << modpow(2,n/2) << endl;
  }
}

Compiler output:
a.cc: In function 'll modpow(ll, ll)':
a.cc:24:28: error: 'MDO' was not declared in this scope; did you mean 'MOD'?
   24 |     return n*modpow(n,a-1)%MDO;
      |                            ^~~
      |                            MOD
a.cc: In function 'int main()':
a.cc:34:17: error: expected initializer before '++' token
   34 |     ll cnt[a[i]]++;
      |                 ^~
a.cc:45:10: error: expected ';' before '}' token
   45 |     i -=2
      |          ^
      |          ;
   46 |   }
      |   ~
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
#include<vector>
using namespace std;
typedef long long ll;
typedef pair<int, int>P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
//max=({});
//条件式が真ならwhileの中身を回し続ける
//printf("%d\n", ans);

//pairの入力
//vector<pair<ll, ll>>work(n);
//rep(i, n) {
//	ll a, b;
//	cin >> a >> b;
//	work[i] = make_pair(a, b);
//for(auto p:mp)(mapの探索)
//printf("%.10f\n",なんちゃら)

int g[15][15];
const int INF = 1001001001;
const int dx[4] = { -1,0,1,0 };
const int dy[4] = { 0,-1,0,1 };

//最大公約数
ll gcd(ll x, ll y) {
	return y ? gcd(y, x % y) : x;
}

ll lcm(ll x, ll y) {
	if (x == 0 || y == 0)return 0;
	return (x / gcd(x, y) * y);
}

//素因数分解
map<ll, ll>ins;
void facterize(ll n) {
	ll a = 2;
	while (n >= a * a) {
		if (n % a == 0) {
			ins[a]++;
			ins[a] = ins[a] % 1000000007;
			n /= a;
		}
		else {
			a++;
		}
	}
	ins[n]++;
}

vector<ll>relation[20], money(20, 1);

int main() {
	int n;
	cin >> n;
	vector<int>a(n);
	vector<int>b(n);
	rep(i, n) {
		cin >> a[i];
		b[a[i]]++;
	}
	ll ans = 1;
	if (n % 2 != 0) {
		rep(i, n) {
			if (i == 0 && b[i]!=1) {
				cout << 0 << endl;
				return 0;
			}
			if (i % 2 != 0&&b[i]!=0) {
				cout << 0 << endl;
				return 0;
			}
			if (i % 2 != 0 && b[i] == 0) {
				continue;
			}
			if (i != 0 && i % 2 == 0 && b[i] != 2) {
				cout << 0 << endl;
				return 0;
			}
			ans *= b[i];
			ans = ans % (1e9 + 7);
		}
	}
	else {
		rep(i, n) {
			if (i % 2 != 0 && b[i] != 2) {
				cout << 0 << endl;
				return 0;
			}
			if (i % 2 == 0 && b[i] == 0) {
				continue;
			}
			if (i % 2 == 0 && b[i] != 0) {
				cout << 0 << endl;
				return 0;
			}
			ans *= b[i];
			ans = ans % (1e9 + 7);
		}
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:85:35: error: invalid operands of types 'll' {aka 'long long int'} and 'double' to binary 'operator%'
   85 |                         ans = ans % (1e9 + 7);
      |                               ~~~ ^ ~~~~~~~~~
      |                               |          |
      |                               |          double
      |                               ll {aka long long int}
a.cc:102:35: error: invalid operands of types 'll' {aka 'long long int'} and 'double' to binary 'operator%'
  102 |                         ans = ans % (1e9 + 7);
      |                               ~~~ ^ ~~~~~~~~~
      |                               |          |
      |                               |          double
      |                               ll {aka long long int}
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
#include<vector>
using namespace std;
typedef long long ll;
typedef pair<int, int>P;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
//max=({});
//条件式が真ならwhileの中身を回し続ける
//printf("%d\n", ans);

//pairの入力
//vector<pair<ll, ll>>work(n);
//rep(i, n) {
//	ll a, b;
//	cin >> a >> b;
//	work[i] = make_pair(a, b);
//for(auto p:mp)(mapの探索)
//printf("%.10f\n",なんちゃら)

int g[15][15];
const int INF = 1001001001;
const int dx[4] = { -1,0,1,0 };
const int dy[4] = { 0,-1,0,1 };

//最大公約数
ll gcd(ll x, ll y) {
	return y ? gcd(y, x % y) : x;
}

ll lcm(ll x, ll y) {
	if (x == 0 || y == 0)return 0;
	return (x / gcd(x, y) * y);
}

//素因数分解
map<ll, ll>ins;
void facterize(ll n) {
	ll a = 2;
	while (n >= a * a) {
		if (n % a == 0) {
			ins[a]++;
			ins[a] = ins[a] % 1000000007;
			n /= a;
		}
		else {
			a++;
		}
	}
	ins[n]++;
}

vector<ll>relation[20], money(20, 1);

int main() {
	int n;
	cin >> n;
	vector<int>a(n);
	vector<int>b(n);
	rep(i, n) {
		cin >> a[i];
		b[a[i]]++;
	}
	ll ans = 1;
	if (n % 2 != 0) {
		rep(i, n) {
			if (i == 0 && b[i]!=1) {
				cout << 0 << endl;
				return 0;
			}
			if (i % 2 != 0&&b[i]!=0) {
				cout << 0 << endl;
				retun 0;
			}
			if (i % 2 != 0 && b[i] == 0) {
				continue;
			}
			if (i != 0 && i % 2 == 0 && b[i] != 2) {
				cout << 0 << endl;
				return 0;
			}
			ans *= b[i];
		}
	}
	else {
		rep(i, n) {
			if (i % 2 != 0 && b[i] != 2) {
				cout << 0 << endl;
				retun 0;
			}
			if (i % 2 == 0 && b[i] == 0) {
				continue;
			}
			if (i % 2 == 0 && b[i] != 0) {
				cout << 0 << endl;
				return 0;
			}
			ans *= b[i];
		}
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:75:33: error: 'retun' was not declared in this scope
   75 |                                 retun 0;
      |                                 ^~~~~
a.cc:91:33: error: 'retun' was not declared in this scope
   91 |                                 retun 0;
      |                                 ^~~~~
Language: C

# include <cstdio>
# include <map>
# include <cmath>

using namespace std;

const int mod = 1e9+7;

int main()
{
    int n;
    int  a[100005];
    map<int,int> m;
    scanf("%d",&n);

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

    int flag = 0; 
    if(n%2) //奇数 
    {
        if(m[0] != 1)
        {
            flag = 1;
        }
        for(int i = 2;i < n;i+=2)
        {
            if(m[i] != 2)
            {
                flag = 1;
            }
        }
    }else{
        for(int i = 1;i < n;i+=2)
        {
            if(m[i] != 2)
            {
                flag = 1;
            }
        }
    }
    long long sum = 1;

    for(int i =0;i < floor(n/2);i++)
    {
        sum = ((sum % mod) * 2)% mod;
    }

    if(n%2)
    {
        if(flag)
        printf("0\n");
        else
        printf("%lld\n",sum);
    }   
    else
    {
        if(flag)
        printf("0\n");
        else
        printf("%lld\n",sum);
    }

    return 0;
 }

Compiler output:
main.c:1:11: fatal error: cstdio: No such file or directory
    1 | # include <cstdio>
      |           ^~~~~~~~
compilation terminated.
Language: C++

from collections import defaultdict
n = int(input())
l = input().split(" ")
l1=defaultdict(int)
for i in range(len(l)):
    l[i]=int(l[i])
    l1[l[i]]+=1
if l1[0]>=1 and n%2==0:
    print(0)
elif l1[0]>1 and n%2==1:
    print(0)
else:
    prod=1
    for key in l1.keys():
        prod*=l1[key]
    print(prod%(1000000000+7))  

Compiler output:
a.cc:1:1: error: 'from' does not name a type
    1 | from collections import defaultdict
      | ^~~~
Language: C++

import math
n=input()
mod = int(1e9) + 7
a=list(map(int,raw_input().split()))
if(len(a)%2==0 and a.count(0)>0):
    print(0)
elif(len(a)%2!=0 and a.count(0)>1):
    print(0)
else:    
    res=0
    b=set(a)
    if(a.count(0)):
        print(pow(2,len(b)-1,mod))
    else:
        print(pow(2,len(b),mod))
        

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod = 1000000007;



signed main(){
    int n;
    cin >> n;
    map<int,int> a;
    for(int i = 0; i < n; i++){
        int b;
        cin >> b;
        a[b]++;
    }
   if(n % 2 == 1){
       for(int i = 0; i < n; i+=2){
           bool ans = true;
           if(i == 0 && a[i] != 1 || i > 0 && a[i] != 2){
               ans = false;
           }
           if(!ans){
               cout << 0 << endl;
               return 0;
           }
       }
   }
   else
   {
       for(int i = 1; i < n; i += 2){
           if(a[i] != 2)
           {
               cout << 0 << endl;
               return 0;
           }
       }
   }
   
    
    
    int ans = 1;
    for(int i = 1 < i <(n / 2); i++){
        ans *= 2;
        ans /= mod;
    }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:36: error: expected ';' before ')' token
   43 |     for(int i = 1 < i <(n / 2); i++){
      |                                    ^
      |                                    ;
Language: C++

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep2(i,a,b) for(int i=a;i<b;i++)
#define each(it,v) for(auto it : v)
#define mod 1000000007
#define all(v) (v).begin(),(v).end()
#define ll long long
#define vi vector<int>
#define vll vector<ll>
#define vpii vector<pair<int,int>>
#define vv vector<vector<int>>
using namespace std;

main()
{
    int n; cin>>n;
    bool isOdd=n%2;
    set<int> s;
    bool f=true;
    int cntz=0;
    rep(i,n)
    {
        int a;
        cin>>a;
        s.insert(a);
        if(isOdd&&a%2==1)f=false;
        if(!isOdd&&a%2==0)f=false;
        if(a==0)cntz++;
    }
    if(!f)
    {
        cout<<0<<endl;
        return 0;
    }
    if(cntz>1)
    {
        cout<<0<<endl;
        return 0;
    }


    cout<<pow(2,n/2)%mod<<endl;
}

Compiler output:
a.cc:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   14 | main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:42:21: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'int' to binary 'operator%'
   42 |     cout<<pow(2,n/2)%mod<<endl;
      |           ~~~~~~~~~~^
      |              |
      |              __gnu_cxx::__promote<double>::__type {aka double}
Language: C++

N = int(input())

A = list(map(int, input().split()))

data = [0] * N
possible = True
MOD = 10**9+7

for a in A:
	data[a] += 1

if N % 2 == 0:
	for i in range(1,N,2):
		if data[i] != 2:
			possible = False
			break
else:
	if data[0] == 1:
		for i in range(2,N,2):
			if data[i] != 2:
				possible = False
				break
	else:
		possible = False

if possible:
	if N % 2 == 0:
		num = N // 2
	else:
		num = (N-1)//2
	ans = 1
	for i in range(num):
		ans = ans * 2 % MOD
		ans %= MOD

	print(ans)
else:
	print(0)


Compiler output:
a.cc:1:1: error: 'N' does not name a type
    1 | N = int(input())
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn=1e5+10;
const ll mm=1e9+7;
int sp[maxn],vis[maxn];
int main()
{
    int n;
    cin>>n;
    int flag=0;
    memset(vis,0,sizeof(vis));
    for(int i=1;i<=n;++i){
        cin>>sp[i];
        vis[sp[i]]++;
    }
    if(n%2==1)
    {
        for(int i=0;i<n;i+=2)
        {
            if(i==0)
            {
                if(vis[i]!=1)
                {
                    flag=1;
                    break;
                }
            }
            else
            {
                if(vis[i]!=2)
                {
                    flag=1;
                    break;
                }
            }
        }
        if(flag==1)
            cout<<0<<endl;
        else
        {
            cout<<pow(2,(n-1)/2)%mm<<endl;
        }
    }
    else if(n%2==0)
    {
        int flag=0;
        for(int i=1;i<n;i+=2)
        {
            if(vis[i]!=2)
            {
                flag=1;
                break;
            }
        }
        if(flag==0)
        {
            cout<<pow(2,n/2)%mm<<endl;
        }

        else cout<<0<<endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:33: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'const ll' {aka 'const long long int'} to binary 'operator%'
   42 |             cout<<pow(2,(n-1)/2)%mm<<endl;
      |                   ~~~~~~~~~~~~~~^~~
      |                      |           |
      |                      |           const ll {aka const long long int}
      |                      __gnu_cxx::__promote<double>::__type {aka double}
a.cc:58:29: error: invalid operands of types '__gnu_cxx::__promote<double>::__type' {aka 'double'} and 'const ll' {aka 'const long long int'} to binary 'operator%'
   58 |             cout<<pow(2,n/2)%mm<<endl;
      |                   ~~~~~~~~~~^~~
      |                      |       |
      |                      |       const ll {aka const long long int}
      |                      __gnu_cxx::__promote<double>::__type {aka double}