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

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

using ll=long long;

int main(){
    ll n,k;
    cin>>n>>k;
    vector<ll> a(n),b(n);
    for(int i=0;i<n;i++){
        cin>>a[i]>>b[i];
    }

    ll res=0;
    for(ll i=(1LL<<32);i>=0;i>>=1){
        if(i==0){
            for(int j=0;j<n;j++){
                if(a[j]==0){
                    score+=b[j];
                }
            }
            res=max(score,res);
            break;
        }
        if(k&i){
            ll score=0;
            for(int j=0;j<n;j++){
                if(a[j]<i){
                    score+=b[j];
                }
                if(a[j] & i){
                    a[j]-=i;
                }
            }
            res=max(score,res);
        }
        
    }
    cout<<res<<endl;

    return 0;        
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:21: error: 'score' was not declared in this scope
   19 |                     score+=b[j];
      |                     ^~~~~
a.cc:22:21: error: 'score' was not declared in this scope
   22 |             res=max(score,res);
      |                     ^~~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;

#define X   first
#define Y   second
#define ld  double

const int   N   = 4e4 + 5;
const ld    eps = 1e-9;

typedef pair<ld,ld> ii;
typedef pair<ii,ld> pii;

int n, t[N];

vector<pii> Line;

int fix(pii &p) {
    if (p.X.X < 0)
        p.X.X = -p.X.X,
        p.X.Y = -p.X.Y,
        p.Y = -p.Y;
}
int chk(ld  M)  {
    vector<ld>  v1;
    for(pii l : Line)
        v1.push_back((l.Y - M * l.X.Y) / l.X.X),
    vector<ld>  v2 = v1;
    sort(v2.begin(),v2.end());
    v2.erase(unique(v2.begin(),v2.end()),v2.end());

    for(int i = 1 ; i <= n ; ++i)   t[i] = 0;
    for(ld  x : v1) {
        int p = lower_bound(v2.begin(),v2.end(),x) - v2.begin() + 1;
        for(int k = mp[x] ; k <= n ; k += k & -k)   ans += t[k];
        for(int k = mp[x] ; k >= 1 ; k -= k & -k)   t[k]++;
    }
    return  4 * ans >= n * n - n;
}
ld  work()  {
    for(pii &l : Line)  fix(l);
    sort(Line.begin(),Line.end(),[](pii &a,pii &b)  {
        return  a.X.X * b.X.Y > a.X.Y * b.X.X;
    });
    ld  L = -1e6;
    ld  R =  1e6;
    while (L + eps <= R)    {
        ld M = (L + R) / 2;
        if (chk(M))
            R = M;
        else
            L = M;
    }
    for(pii &l : Line)  swap(l.X.X,l.X.Y);
    return  abs(L) > eps ? L : 0;
}

int main()  {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> n;

    for(int i = 1 ; i <= n ; ++i)   {
        ld  a;  cin >> a;
        ld  b;  cin >> b;
        ld  c;  cin >> c;
        Line.push_back(pii({a,b},c));
    }

    ld  Y = work();
    ld  X = work();

    cout << fixed << setprecision(9) << X << " " << Y;
}

Compiler output:
a.cc: In function 'int fix(pii&)':
a.cc:24:1: warning: no return statement in function returning non-void [-Wreturn-type]
   24 | }
      | ^
a.cc: In function 'int chk(double)':
a.cc:29:17: error: expected primary-expression before 'v2'
   29 |     vector<ld>  v2 = v1;
      |                 ^~
a.cc:30:10: error: 'v2' was not declared in this scope; did you mean 'v1'?
   30 |     sort(v2.begin(),v2.end());
      |          ^~
      |          v1
a.cc:36:21: error: 'mp' was not declared in this scope; did you mean 'p'?
   36 |         for(int k = mp[x] ; k <= n ; k += k & -k)   ans += t[k];
      |                     ^~
      |                     p
a.cc:36:53: error: 'ans' was not declared in this scope; did you mean 'abs'?
   36 |         for(int k = mp[x] ; k <= n ; k += k & -k)   ans += t[k];
      |                                                     ^~~
      |                                                     abs
a.cc:37:21: error: 'mp' was not declared in this scope; did you mean 'p'?
   37 |         for(int k = mp[x] ; k >= 1 ; k -= k & -k)   t[k]++;
      |                     ^~
      |                     p
a.cc:39:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   39 |     return  4 * ans >= n * n - n;
      |                 ^~~
      |                 abs
Language: C++


#ifdef __GNUC__ 
#include <bits/stdc++.h>
#endif
#include <immintrin.h>
//using namespace std;
#include <boost/numeric/ublas/vector.hpp>
#include <boost/numeric/ublas/io.hpp>
#include <boost/numeric/ublas/vector_proxy.hpp>
#include <boost/numeric/ublas/vector_expression.hpp>
using namespace boost::numeric::ublas;
//template <typename T>using arratType = boost::numeric::ublas::vector<T>;
template <typename T>using arratType = std::valarray<T>;
std::vector<double> xresult, yresult;
arratType<double> datas[3];
int main() {
	size_t n;
	std::cin >> n;
	for (auto &d : datas)d.resize(n);
	for (int i = 0; i < n; ++i) {
		for (auto & d : datas) {
			std::cin >> d[i];
		}
	}
	xresult.reserve((n+2)*(n+1)/2);
	yresult.reserve((n+2)*(n+1)/2);
	for (auto c : datas[2])yresult.push_back(c);
	{
		auto xs = datas[2] / datas[0];
		for (auto x : xs)xresult.push_back (x);
	}
	for (int64_t i =1; i < n; ++i) {
		//int64_t a, b, c;
		//a = datas[0][i];
		//b = datas[1][i];
		//c = datas[2][i];
		auto base =  datas[0].cshift(i) * datas[1]-datas[0]*datas[1].cshift(i);
		auto ys = (datas[2] * datas[0].cshift(i) - datas[2].cshift(i)*datas[0])/base;
		auto xs = (datas[2] * datas[1].cshift(i) - datas[2].cshift(i)*datas[1])/base;
		for (auto x : xs)xresult.push_back(x);
		for (auto y : ys)yresult.push_back(y);


	}
	std::sort(xresult.begin(), xresult.end());
	std::sort(yresult.begin(), yresult.end());
	std::cout<< xresult[xresult.size()/2] << " " << yresult[yresult.size()/2] << std::endl;

}

Compiler output:
a.cc:7:10: fatal error: boost/numeric/ublas/vector.hpp: No such file or directory
    7 | #include <boost/numeric/ublas/vector.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<cstdio>
#include<iostream>
#include<algorithm>
#define maxn 40010
using namespace std;
int n,i,p,sum;
double l=-1e9,r=1e9,mid;
struct line
{
	double x,y,z,slope,node;
}a[maxn],b[maxn];
bool cmp(line x,line y)
{
	return x.node==y.node?x.slop<y.slop:x.node>y.node;
}
void merge(int l,int r)
{
	int i,k=0,mid=(l+r)/2,j=mid+1;
	if(l==r)return;
	merge(l,mid);
	merge(mid+1,r);
	for(i=l;i<=mid;i++)
	{
		while(j<=r&&a[j].slope<a[i].slope)b[++k]=a[j++];
		sum+=j-mid-1;
		b[++k]=a[i];
	}
	for(i=1;i<=k;i++)
		a[l+i-1]=b[i];
}
int judge1(double x)
{
	int i;
	for(i=1;i<=n;i++)
		a[i].node=(a[i].x*x-a[i].z)/(-a[i].y);
	sort(a+1,a+n+1,cmp);
	sum=0;
	merge(1,n);
	return sum;
}
int main()
{
	scanf("%d",&n);
	for(i=1;i<=n;i++)
	{
		scanf("%lf%lf%lf",&a[i].x,&a[i].y,&a[i].z);
		a[i].slope=-a[i].x/a[i].y;
	}
	p=n*(n-1)/2;
	while(r-l>1e-9)
	{
		mid=(l+r)/2;
		if(judge1(mid)*2<p)l=mid;else r=mid;
	}
	printf("%.9lf ",mid);
	for(i=1;i<=n;i++)
		a[i].slope=1/a[i].slope,swap(a[i].x,a[i].y);
	l=-1e9,r=1e9;
	while(r-l>1e-9)
	{
		mid=(l+r)/2;
		if(judge1(mid)*2<p)l=mid;else r=mid;
	}
	printf("%.9lf\n",mid);
}

Compiler output:
a.cc: In function 'bool cmp(line, line)':
a.cc:14:33: error: 'struct line' has no member named 'slop'; did you mean 'slope'?
   14 |         return x.node==y.node?x.slop<y.slop:x.node>y.node;
      |                                 ^~~~
      |                                 slope
a.cc:14:40: error: 'struct line' has no member named 'slop'; did you mean 'slope'?
   14 |         return x.node==y.node?x.slop<y.slop:x.node>y.node;
      |                                        ^~~~
      |                                        slope
Language: C++

#include<cstdio>
#include<algorithm>
#include<vector>
#include<deque>
#include<stack>
#include<queue>
#include<string>
#include<iostream>
#include<tuple>
#include<utility>
#include<set>
#include<queue>
#include<iomanip>
#include<iterator>
#include<map>
#include<bitset>
#include<array>
//#include<chrono>
//cout<<setprecision(12)
//fixed
//#include<random>
using namespace std;
typedef long long int llint;
typedef long double lldo;
const llint big=1e9+100000;
const llint mod=1e4;
const lldo eps=1e-9;
const long double pai=3.141592653589793238462643;
#define mt make_tuple
#define mp make_pair
#define fir first
#define sec second
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define res resize
#define ins insert
#define era erase
#define dme(in) cout<<in<<endl;return 0
template <class T,class U>void mineq(T& a,U b){if(a>b){a=b;}}
template <class T,class U>void maxeq(T& a,U b){if(a<b){a=b;}}
llint tensort(vector<lldo>& in){
	//転倒数を計算しながらソートします
	llint ans=0;
	int i,j,n=in.size(),gen=1;
	vector<lldo>iti(n);
	for(gen=1;gen<=n;gen*=2){
		int now=0;
		for(i=0;i<n;i+=gen*2){//i,i+gen
			int hid=i,mig=i+gen,end=min(n,i+gen+gen);
			if(n<=i+gen){for(j=i;j<n;j++){iti[j]=in[j];}}
			while(hid!=i+gen||mig!=end){
				if(mig==end){iti[now]=in[hid];now++;hid++;}//左
				else if(hid==i+gen){iti[now]=in[mig];now++;mig++;}//右
				else if(in[hid]<in[mig]){iti[now]=in[hid];now++;hid++;}//左
				else{ans+=i+gen-hid;iti[now]=in[mig];now++;mig++;}//右
			}
		}
		swap(in,iti);
	}
	return ans;
}
lldo solve(vector<tuple<int,int,int>> a){
	int n,i;n=a.size();
	vector<tuple<lldo,lldo,int>>car(n);//y=ax+b
	for(i=0;i<n;i++){
		get<0>(car[i])=(lldo)-get<0>(a[i])/(lldo)get<1>(a[i]);
		get<1>(car[i])=(lldo)get<2>(a[i])/(lldo)get<1>(a[i]);
		get<2>(car[i])=i;
	}
	sort(car.begin(),car.end());//xを無限大に飛ばしたときの車の配置
	lldo bmax=big,bmin=-big;
	//改良型にぶたん
	//-1見る
	//1見る
	
	for(int q=0;q<45;q++){
		lldo gen=(bmax+bmin)/2;
		if(bmin+eps<-1&&-1<bmax-eps){gen=-1;}
		else if(bmin+eps<1&&1<bmax-eps){gen=1;}
		else if(q<10&&1<=bmin){gen=sqrt(bmax*bmin);}
		else if(q<10&&bmax<=-1){gen=-sqrt(bmax*bmin);}
		vector<lldo> ima(n);
		for(i=0;i<n;i++){ima[i]=get<0>(car[i])*gen+get<1>(car[i]);}
		llint beet=tensort(ima);
		if(beet<=(n*(n-1)/4)){bmax=gen;}
		else{bmin=gen;}
	}
	return bmin;
}
int main(void){
	ios::sync_with_stdio(false);
	int n,i;
	cin>>n;
	vector<tuple<int,int,int>>a(n);
	for(i=0;i<n;i++){cin>>get<0>(a[i])>>get<1>(a[i])>>get<2>(a[i]);}
	cout<<setprecision(20)<<solve(a);
	for(i=0;i<n;i++){swap(get<0>(a[i]),get<1>(a[i]));}
	cout<<" "<<solve(a)<<endl;
	return 0;
}


Compiler output:
a.cc: In function 'lldo solve(std::vector<std::tuple<int, int, int> >)':
a.cc:82:44: error: 'sqrt' was not declared in this scope
   82 |                 else if(q<10&&1<=bmin){gen=sqrt(bmax*bmin);}
      |                                            ^~~~
a.cc:83:46: error: 'sqrt' was not declared in this scope
   83 |                 else if(q<10&&bmax<=-1){gen=-sqrt(bmax*bmin);}
      |                                              ^~~~
Language: C++

#include"bits/stdc++.h"

using namespace std;

#define MAX 40004

int n;


long double A[MAX];
long double B[MAX];

vector<pair<double, double> > v;

unordered_map<long double, vector<long double> > mp;

struct BIT {
	vector<int> bit;
	void resize(int N) {
		bit.assign(N, 0);
	}
	void add(int i, int j) {
		i++;
		while (i < bit.size()) {
			bit[i] += j;
			i += i&-i;
		}
	}
	int sum(int i) {
		int r = 0;
		i++;
		while (i) {
			r += bit[i];
			i -= i&-i;
		}
		return r;
	}
	int rng(int lef, int rig) {
		int F = sum(rig);
		if (lef) {
			F -= sum(lef - 1);
		}
		return F;
	}
};
BIT b;

map<long double, int> mpp;
int ord[MAX];

int cnt_lef(long double X) {
	b.resize(n + 1);
	mp.clear();
	for (int i = 0; i < n; i++) {
		mp[A[i] * X + B[i]].push_back(ord[i]);
	}
	int same = 0;
	int rig = 0;
	for (auto it = mp.rbegin(); it != mp.rend(); it++) {
		same += (*it).second.size()*((*it).second.size() - 1) / 2;
		vector<long double> &V = (*it).second;
		for (auto a : V) {
			rig += b.sum(a - 1);
			b.add(a, 1);
		}
	}
	int lef = n*(n - 1) / 2 - same - rig;
	return rig - lef;
}

double solve() {
	mpp.clear();
	for (int i = 0; i < n; i++) {
		mpp[A[i]] = 0;
	}
	int cc = 0;
	for (auto it = mpp.begin(); it != mpp.end(); it++) {
		(*it).second = cc;
		cc++;
	}
	for (int i = 0; i < n; i++) {
		ord[i] = mpp[A[i]];
	}
	double mint = -199999999;
	double maxt = 199999999;
	double EP = 1e-9;
	while (mint + EP < maxt) {
		double mid = (mint + maxt) / 2.0;
		int flag = cnt_lef(mid);
		if (flag <= 0) {
			maxt = mid;
		}
		else {
			mint = mid;
		}
	}
	return mint;
}
int main() {
	cin >> n;
	for (int i = 0; i < n; i++) {
		int a, b, c;
		scanf("%d%d%d", &a, &b, &c);
		A[i] = (long double)(a) / (long double)(b);
		B[i] = -(long double)(c) / (long double)(b);
	}
	double X = solve();
	for (int i = 0; i < n; i++) {
		pair<long double, long double> p = make_pair(0, B[i]);
		pair<long double, long double> p2 = make_pair(1, A[i] + B[i]);
		swap(p.first, p.second);
		swap(p2.first, p2.second);
		p.first *= -1.0;
		p2.first *= -1.0;
		A[i] = (p2.second - p.second) / (p2.first - p.first);
		B[i] = p.second - A[i] * p.first;
	}
	double Y = solve();
	printf("%.16f %.16f\n", X, Y);
	return 0;
}

Compiler output:
a.cc: In function 'int cnt_lef(long double)':
a.cc:59:27: error: 'class std::unordered_map<long double, std::vector<long double> >' has no member named 'rbegin'; did you mean 'begin'?
   59 |         for (auto it = mp.rbegin(); it != mp.rend(); it++) {
      |                           ^~~~~~
      |                           begin
a.cc:59:46: error: 'class std::unordered_map<long double, std::vector<long double> >' has no member named 'rend'; did you mean 'end'?
   59 |         for (auto it = mp.rbegin(); it != mp.rend(); it++) {
      |                                              ^~~~
      |                                              end
Language: C++

#include<iostream>
int main(){
  ll Q;
  cin>>Q;
  for(ll i=0;i<Q;++i){
    ll A,M;
    cin>>A>>M;
    cout<<(M-1)*(M-1)<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'll' was not declared in this scope
    3 |   ll Q;
      |   ^~
a.cc:4:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |   cin>>Q;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:4:8: error: 'Q' was not declared in this scope
    4 |   cin>>Q;
      |        ^
a.cc:5:9: error: expected ';' before 'i'
    5 |   for(ll i=0;i<Q;++i){
      |         ^~
      |         ;
a.cc:5:14: error: 'i' was not declared in this scope
    5 |   for(ll i=0;i<Q;++i){
      |              ^
a.cc:6:7: error: expected ';' before 'A'
    6 |     ll A,M;
      |       ^~
      |       ;
a.cc:7:10: error: 'A' was not declared in this scope
    7 |     cin>>A>>M;
      |          ^
a.cc:7:13: error: 'M' was not declared in this scope
    7 |     cin>>A>>M;
      |             ^
a.cc:8:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |     cout<<(M-1)*(M-1)<<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:8:24: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |     cout<<(M-1)*(M-1)<<endl;
      |                        ^~~~
      |                        std::endl
In file included from /usr/include/c++/14/iostream:41:
/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;
typedef long long ll;

int gcd(int a,int b)
{
	return !b?a:gcd(b,a%b);
}

int Phi(int n)
{
	int r=n;
	for(int i=2; i*i<=n; i++)
		if(n%i==0)
		{
			r=r/i*(i-1);
			while(n%i==0)n/=i;
		}
	if(n>1)r=r/n*(n-1);
	return r;
}

void exgcd(int a,int b,int&x,int&y)
{
	if(!b)
	{
		x=1;
		y=0;
		return;
	}
	exgcd(b,a%b,x,y);
	int t=x;
	x=y;
	y=t-a/b*y;
}

int Inv(int a,int b)
{
	int x,y;
	exgcd(a,b,x,y);
	return(x+b)%b;
}

void crt(ll &now,int a,int b,int c,int d)
{
	ll M=b*d;
	now=(now+(ll)a*M)
}

int T,n,m;
ll k;

ll solve(int d)
{
	if(d==1)
		return 233;
	
}

int main()
{
	scanf("%d",&T);
	while(T--)
	{
		scanf("%d%d",&n,&m);
		printf("%lld\n",solve(m));
	}
}

Compiler output:
a.cc: In function 'void crt(ll&, int, int, int, int)':
a.cc:47:26: error: expected ';' before '}' token
   47 |         now=(now+(ll)a*M)
      |                          ^
      |                          ;
   48 | }
      | ~                         
a.cc: In function 'll solve(int)':
a.cc:58:1: warning: control reaches end of non-void function [-Wreturn-type]
   58 | }
      | ^
Language: C++

#include <algorithm>
#include <cstdio>
#include <iostream>
#include <map>
#include <cmath>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#include <bitset>
#include <cstring>
using namespace std;
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)
#define CLR(mat) memset(mat, 0, sizeof(mat))
typedef long long ll;
int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);
  ll Q; cin >> Q;
  FOR(i,0,Q) {
    ll A, M; cin >> A >> M;
    ll ans[20]; CLR(ans);
    ll AA = A;
    FOR(j,1,20) {
      ans[j] = AA % M;
      AA = (AA % M) * (AA % M);
      AA %= M;
    }
    FOR(k,1,20) {
      FOR(l,1,20) {
        if(ans[l] == k) {
          cout << k << endl;
          ok = true;
          break;
        }
      }
      if(ok) break;
    }
    if(!ok) cout << -1 << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:11: error: 'ok' was not declared in this scope; did you mean 'k'?
   38 |           ok = true;
      |           ^~
      |           k
a.cc:42:10: error: 'ok' was not declared in this scope; did you mean 'k'?
   42 |       if(ok) break;
      |          ^~
      |          k
a.cc:44:9: error: 'ok' was not declared in this scope
   44 |     if(!ok) cout << -1 << endl;
      |         ^~
Language: C++

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

typedef long long ll;

ll pw(ll a, ll b, ll mod) {
	if (b == 0) {
		return 1;
	}
	if (b == 1) {
		return a % mod;
	}

	ll t = pw(a, b/2, mod);
	t = t*t % mod;
	if (b%2) {
		t = t*a % mod;
	}
	return t;
}

const int SITO_MAX = 40000;

int f[SITO_MAX+1];
vector<int> prosti;

struct sito {
	sito() {
		for (int i=2; i<=SITO_MAX; i++) {
			if (f[i] == 0) {
				f[i] = i;
				prosti.push_back(i);
			}
			int j = 0;
			while (j < (int)prosti.size()) {
				if (prosti[j] > f[i]) {
					break;
				}
				int x = i * prosti[j];
				if (x > SITO_MAX) {
					break;
				}
				f[x] = prosti[j];
				j++;
			}
		}
	}
} sito_obj_983431;

template<class T>
T eea(T a, T b, T& x, T& y) {
	if (!b) {
		x = 1;
		y = 0;
		return a;
	}

	T x1, y1;
	T g = eea(b, a % b, x1, y1);
	x = y1;
	y = x1 - (a / b) * y1;
	return g;
}

ll gcd(ll a, ll b) {
	ll t;
	while (b) { 
		t = b;
		b = a % b;
		a = t;
	}
	return a;
}

ll phi(ll m) {
	ll prod = 1;

	for (int p : prosti) {
		if (m % p == 0) {
			prod *= p-1;
			m /= p;
			while (m % p == 0) {
				prod *= p;
				m /= p;
			}
		}
	}

	if (m > 1) {
		prod *= m-1;
	}

	return prod;
}

void brut(ll a, ll m) {
	ll p = 1;
	for (ll k=0;; k++) {
		cerr << k << ' ' << p << '\n';
		if (k % m == p) {
			break;
		}
		p = a*p % m;
	}
}

long long INF = 10'000'000'000ll;
long long MIL = 2'000'000'000ll;

ll power_tower_estimate(ll a, ll level) {
	if (level == 1) {
		return a;
	}
	if (level == 2) {
		if (a >= 10) {
			return INF;
		} else {
			return pw(a, a, MIL);
		}
	}

	ll pte = power_tower_estimate(a, level-1);
	if (pte > 40) {
		return INF;
	}
	if (pte * log(a) > log(1.5e9)) {
		return INF;
	}

	return pw(a, pte, MIL);
}

ll power_tower(ll a, ll level, ll mod) {
	if (level == 1) {
		return a % mod;
	}
	if (level == 2) {
		return pw(a, a, mod);
	}

	ll pte = power_tower_estimate(a, level-1);

	if (pte == INF) {
		ll f = phi(mod);
		ll b = power_tower(a, level-1, f);
		return pw(a, f + b % f, m);
	} else {
		ll f = phi(mod);
		ll b = power_tower(a, level-1, MIL);
		return pw(a, b, m);
	}
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
	cerr.tie(nullptr);

	// zez
	int q;
	cin >> q;
	while (q--) {
		ll a, m;
		cin >> a >> m;

		if (a == 0) {
			cout << m << '\n';
			continue;
		}

		if (a == 1) {
			cout << 1 << '\n';
			continue;
		}

		


		ll sol = power_tower(a, 31, m) + phi(m)*m*1;

		//
		 cout << sol << '\n';

		//cerr << sol % m << ' ' << pw(a, sol, m) << '\n';
	}


	

}

Compiler output:
a.cc: In function 'll power_tower(ll, ll, ll)':
a.cc:146:41: error: 'm' was not declared in this scope
  146 |                 return pw(a, f + b % f, m);
      |                                         ^
a.cc:150:33: error: 'm' was not declared in this scope
  150 |                 return pw(a, b, m);
      |                                 ^
Language: C++

#include <algorithm>
#include <cstdio>
#include <iostream>
#include <map>
#include <cmath>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#include <stdlib.h>
#include <stdio.h>
#include <bitset>
#include <cstring>
using namespace std;
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)
#define CLR(mat) memset(mat, 0, sizeof(mat))
typedef long long ll;
int main()
{
  ios::sync_with_stdio(false);
  cin.tie(0);
  ll Q; cin >> Q;
  FOR(i,0,Q) {
    ll A, M; cin >> A >> M;
    ll ans[20]; CLR(ans);
    ll AA = A;
    FOR(j,1,20) {
      ans[j] = AA % M;
      AA = (AA % M) * (AA % M);
      AA %= M;
    }
    FOR(k,1,20) {
      FOR(l,1,20) {
        if(ans[l] == k) {
          cout << k << endl;
          ok = true;
          break;
        }
      }
      if(ok) break;
    }
    if(!ok) cout << -1 << endl;
  }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:11: error: 'ok' was not declared in this scope; did you mean 'k'?
   38 |           ok = true;
      |           ^~
      |           k
a.cc:42:10: error: 'ok' was not declared in this scope; did you mean 'k'?
   42 |       if(ok) break;
      |          ^~
      |          k
a.cc:44:9: error: 'ok' was not declared in this scope
   44 |     if(!ok) cout << -1 << endl;
      |         ^~
Language: C++

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

int main () {
  string S;
  cin >> S;
  cout << S.count('1') << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'count'
    7 |   cout << S.count('1') << endl;
      |             ^~~~~
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,b=0;
  cin>>a;
  
  for(int i=0;i<6;i++){
    if(a[i]==1)
      b++;
  }
  
  cout<<b;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: invalid types 'int[int]' for array subscript
    8 |     if(a[i]==1)
      |         ^
Language: C

#include<iostream>
using namespace std;
int main(){
  int a,b=0;
  cin>>a;
  
  for(int i=0;i<6;i++){
    if(a[i]==1)
      b++;
  }
  
  cout<<b;
  
  return 0;
}


Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>
int main(void)
  char a[6];
  scanf("%s", a);
  int i = 0;
  count = 0;
for(i = 0; i < 6; i++){
  if(a[i] == '1'){
    count++;
  }
}
printf("%d\n", count);
  return 0;
}   


Compiler output:
main.c: In function 'main':
main.c:4:3: error: expected declaration specifiers before 'scanf'
    4 |   scanf("%s", a);
      |   ^~~~~
main.c:5:3: error: parameter 'i' is initialized
    5 |   int i = 0;
      |   ^~~
main.c:6:3: error: expected declaration specifiers before 'count'
    6 |   count = 0;
      |   ^~~~~
main.c:7:1: error: expected declaration specifiers before 'for'
    7 | for(i = 0; i < 6; i++){
      | ^~~
main.c:7:12: error: expected declaration specifiers before 'i'
    7 | for(i = 0; i < 6; i++){
      |            ^
main.c:7:19: error: expected declaration specifiers before 'i'
    7 | for(i = 0; i < 6; i++){
      |                   ^
main.c:12:1: error: expected declaration specifiers before 'printf'
   12 | printf("%d\n", count);
      | ^~~~~~
main.c:13:3: error: expected declaration specifiers before 'return'
   13 |   return 0;
      |   ^~~~~~
main.c:14:1: error: expected declaration specifiers before '}' token
   14 | }
      | ^
main.c:2:5: error: old-style parameter declarations in prototyped function definition
    2 | int main(void)
      |     ^~~~
main.c:15: error: expected '{' at end of input
Language: C

#include <stdio.h>
int main(void)
  char a[6];
  scanf("%s", a);
  int i = 0;
  count = 0;
for(i = 0; i < 6; i++){
  if(a[i] == '1'){
    count++
  }printf("%d\n", count);
}
  return 0;
}   

Compiler output:
main.c: In function 'main':
main.c:4:3: error: expected declaration specifiers before 'scanf'
    4 |   scanf("%s", a);
      |   ^~~~~
main.c:5:3: error: parameter 'i' is initialized
    5 |   int i = 0;
      |   ^~~
main.c:6:3: error: expected declaration specifiers before 'count'
    6 |   count = 0;
      |   ^~~~~
main.c:7:1: error: expected declaration specifiers before 'for'
    7 | for(i = 0; i < 6; i++){
      | ^~~
main.c:7:12: error: expected declaration specifiers before 'i'
    7 | for(i = 0; i < 6; i++){
      |            ^
main.c:7:19: error: expected declaration specifiers before 'i'
    7 | for(i = 0; i < 6; i++){
      |                   ^
main.c:12:3: error: expected declaration specifiers before 'return'
   12 |   return 0;
      |   ^~~~~~
main.c:13:1: error: expected declaration specifiers before '}' token
   13 | }
      | ^
main.c:2:5: error: old-style parameter declarations in prototyped function definition
    2 | int main(void)
      |     ^~~~
main.c:14: error: expected '{' at end of input
Language: C++

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

#define int long long
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define rep(i, n) for (int i = 0; i < n; ++i)
#define REP(i, n) for (int i = 0; i < n; ++i)
#define range(i,a,b) ((a)<=(i) && (i)<(b))
#define debug(x) cout << #x << " = " << (x) << endl;
#define fs first
#define sc second
#define pb push_back
#define eb emplace_back
#define SP << " " <<

typedef long long ll;
typedef pair<int, int> P;
typedef tuple<int, int, int> T;
typedef vector<int> vec;
typedef vector<P> pvec;
typedef vector<vector<int>> vvec;
typedef vector<vector<P>> pvvec;
typedef priority_queue<int> PQI;
typedef priority_queue<P> PQP;
typedef priority_queue<int,vector<int>,greater<int>> PQIG;
typedef priority_queue<P,vector<P>,greater<P>> PQPG;

const vector<int> DX = {0, -1, 0, 1, 1, 1, -1, -1};
const vector<int> DY = {1, 0, -1, 0, 1, -1, 1, -1};
constexpr int MOD = (1000000007);
// const int MOD = (998244353);
// const int INF = (1 << 30); // 1073741824
const ll INF = (1LL << 60); // 1152921504606846976
const double PI = (3.141592653589794);
const double EPS = (0.0000000001); // 10^(-10)

template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return 1;} return 0;}
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return 1;} return 0;}
template<class T> inline T ceil(T a, T b) {return T((a + b - 1) / b);}
template<class T> inline T round(T a, T b) {return T(a / b);}
template< typename T1, typename T2 > istream &operator>>(istream &is, pair< T1, T2 > &p) { is >> p.first >> p.second; return is; }
template <class T> inline void out(T &a) { bool flag=true; for(auto&x:a){if(flag) {flag=false;} else{ cout << ' '; } cout<<x; } cout << endl; }



//----------------------------------------------------------------
int nmax=200000; // 2*(10^5)
vvec G(nmax);





void solve4ts()
{
  
  
  string s;
  cin>>s;
  int cnt=0;
  rep(i,n){
    if(s[i]=='1') cnt++;
  }
  cout<<cnt<<endl;
  
  
}
//-----------------------------------------------------------------

signed main(){ ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(15);
    int repeat = 1;
    // cin >> repeat;
    while(repeat--) solve4ts();
}

/*

g++ -std=c++1z code.cpp
./a.out

*/

Compiler output:
a.cc: In function 'void solve4ts()':
a.cc:63:9: error: 'n' was not declared in this scope
   63 |   rep(i,n){
      |         ^
a.cc:8:39: note: in definition of macro 'rep'
    8 | #define rep(i, n) for (int i = 0; i < n; ++i)
      |                                       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using P = pair<string,int>;
const double PI = acos(-1);

int main() {
  int cnt = 0;
rep(i,n){
  char x;
  cin >> x;
  if(x=='1')cnt++;
}
cout << cnt << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: 'n' was not declared in this scope
   10 | rep(i,n){
      |       ^
a.cc:3:45: note: in definition of macro 'rep'
    3 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                             ^
Language: C++

#include<bits/stdc++.h>
#define rep(i,n) for(int i=0; i<n; i++)
using namespace std;
using ll = long long;
const ll INF = 10e9;

int main(){
  string s; cin>>s;
  cout << count(s.begin, s.end, '1') << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: no matching function for call to 'count(<unresolved overloaded function type>, <unresolved overloaded function type>, char)'
    9 |   cout << count(s.begin, s.end, '1') << endl;
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:4025:5: note: candidate: 'template<class _IIter, class _Tp> typename std::iterator_traits< <template-parameter-1-1> >::difference_type std::count(_IIter, _IIter, const _Tp&)'
 4025 |     count(_InputIterator __first, _InputIterator __last, const _Tp& __value)
      |     ^~~~~
/usr/include/c++/14/bits/stl_algo.h:4025:5: note:   template argument deduction/substitution failed:
a.cc:9:16: note:   couldn't deduce template parameter '_IIter'
    9 |   cout << count(s.begin, s.end, '1') << endl;
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:101:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator, class _Tp> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, typename std::iterator_traits<_II>::difference_type> std::count(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, const _Tp&)'
  101 | count(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value);
      | ^~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:101:1: note:   candidate expects 4 arguments, 3 provided
Language: C++

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

int main() {
  string S;
  cin >> S;
  int ans=0;
  for (int i=0, i<6; i++) {
    ans=ans+int(S.at(i));
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:18: error: expected ';' before '<' token
   11 |   for (int i=0, i<6; i++) {
      |                  ^
      |                  ;
a.cc:11:18: error: expected primary-expression before '<' token
Language: C

#include<stdio.h>
#include <stdlib.h>

int CountQ(char* a_acS);

int main(void) {
	int iS;
	char acS[7];

	//文字列Sを入力
	scanf("%d", &iS);
	//Sを配列に変換
	itoa(iS, acS,10);
	//採用された問題の数を数え,結果を出力
	printf("%d\n",CountQ(acS));

	return 0;
}

int CountQ(char* a_acS) {
	int i;
	int count = 0;
	//文字列S中の1の数を数える
	for (i = 0;i < 6;i++) {
		if (a_acS[i] == '1') {
			count++;
		}
	}
	return(count);
}

Compiler output:
main.c: In function 'main':
main.c:13:9: error: implicit declaration of function 'itoa' [-Wimplicit-function-declaration]
   13 |         itoa(iS, acS,10);
      |         ^~~~
Language: C

#include<stdio.h>


int CountQ(char* a_acS);

int main(void) {
	int iS;
	char acS[7];

	//文字列Sを入力
	scanf("%d", &iS);
	//Sを配列に変換
	itoa(iS, acS,10);
	//採用された問題の数を数え,結果を出力
	printf("%d\n",CountQ(acS));

	return 0;
}

int CountQ(char* a_acS) {
	int i;
	int count = 0;
	//文字列S中の1の数を数える
	for (i = 0;i < 6;i++) {
		if (a_acS[i] == '1') {
			count++;
		}
	}
	return(count);
}

Compiler output:
main.c: In function 'main':
main.c:13:9: error: implicit declaration of function 'itoa' [-Wimplicit-function-declaration]
   13 |         itoa(iS, acS,10);
      |         ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
const ll mod=1000000007;
const int MAX_N = 1000;         // n の最大値
 
// nCk を取得
double nCk(int n, int k) {
double res=1.0;
for(int i=0; i<n; i++){
res*=0.5;}
for(int i=0; i<k; i++){
res*=(double)(n-i);
res/=(double)(k-i);
}
return res;}
 
int main() {
string n;
cin>>n;
ll ca=0;
for(ll i=0; i<=5; i++){
if(s.at(i)=='1'){
ca++;}}
cout <<ca<< endl;
return 0;}



Compiler output:
a.cc: In function 'int main()':
a.cc:24:4: error: 's' was not declared in this scope
   24 | if(s.at(i)=='1'){
      |    ^
Language: C++

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

typedef long long int ll;
typedef long long unsigned int ull;
typedef long double ld;
const int mod = 1e9 + 7;
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define INF 1999999999
#define MODA 1000000007
#define PI 3.1415926535897932384626433
//cout << fixed << setprecision(2);


int main()
{
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    string s;
    cin >> s;
    int count1 = count(s.begin(), s.end(), '1');
    cout << count1 << endl;
    return 0;
}
#include <bits/stdc++.h>
using namespace std;

typedef long long int ll;
typedef long long unsigned int ull;
typedef long double ld;
const int mod = 1e9 + 7;
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define INF 1999999999
#define MODA 1000000007
#define PI 3.1415926535897932384626433
//cout << fixed << setprecision(2);


int main()
{
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    string s;
    cin >> s;
    int count1 = count(s.begin(), s.end(), '1');
    cout << count1 << endl;
    return 0;
}


Compiler output:
a.cc:37:11: error: redefinition of 'const int mod'
   37 | const int mod = 1e9 + 7;
      |           ^~~
a.cc:7:11: note: 'const int mod' previously defined here
    7 | const int mod = 1e9 + 7;
      |           ^~~
a.cc:48:5: error: redefinition of 'int main()'
   48 | int main()
      |     ^~~~
a.cc:18:5: note: 'int main()' previously defined here
   18 | int main()
      |     ^~~~
Language: C++

#include <iostream>
#include<vector>
#include<algorithm>
#include<string>
#include<map>
#include<set>
#include<stack>
#include<queue>
#include<math.h>
using namespace std;
typedef long long ll;
#define int long long
typedef vector<int> VI;
typedef pair<int, int> pii;
typedef vector<pii> VP;
typedef vector<string> VS;
typedef priority_queue<int> PQ;
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 fore(i,a) for(auto &i:a)
#define REP(i,n) for(int i=0;i<n;i++)
#define eREP(i,n) for(int i=0;i<=n;i++)
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define eFOR(i,a,b) for(int i=(a);i<=(b);++i)
#define SORT(c) sort((c).begin(),(c).end())
#define rSORT(c) sort((c).rbegin(),(c).rend())
#define LB(x,a) lower_bound((x).begin(),(x).end(),(a))
#define UB(x,a) upper_bound((x).begin(),(x).end(),(a))
#define INF 1000000000
#define LLINF 9223372036854775807
#define mod 1000000007
//priority_queue<int,vector<int>, greater<int> > q2;
int N, A, B, C, D;


int dfs(int n) {

	int res = LLINF;

	chmin(res, check(n));
	chmin(res,  + C);
	chmin(res, dfs(n * 3) + B);

	if (n > N)return res;

	chmin(res, dfs(n * 2) + A);
	chmin(res, dfs(n * 5) + C);
	chmin(res, dfs(n * 3) + B);
	
	return res;
	
}
int check(int T) {

	int T = abs(N - T);




}


signed main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	string S; cin >> S;
	int ans = 0;
	REP(i, S.size())if (S[i] == '1')ans++;
	cout << ans << endl;
		
	return 0;
}



Compiler output:
a.cc: In function 'long long int dfs(long long int)':
a.cc:40:20: error: 'check' was not declared in this scope
   40 |         chmin(res, check(n));
      |                    ^~~~~
a.cc: In function 'long long int check(long long int)':
a.cc:55:13: error: declaration of 'long long int T' shadows a parameter
   55 |         int T = abs(N - T);
      |             ^
a.cc:53:15: note: 'long long int T' previously declared here
   53 | int check(int T) {
      |               ^
a.cc:60:1: warning: no return statement in function returning non-void [-Wreturn-type]
   60 | }
      | ^
Language: C++

#include <bits/stdc++.h>
int main() {bitset<6> x;std::cin>>x;std::cout<<x.count()<<std::endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:13: error: 'bitset' was not declared in this scope; did you mean 'std::bitset'?
    2 | int main() {bitset<6> x;std::cin>>x;std::cout<<x.count()<<std::endl;}
      |             ^~~~~~
      |             std::bitset
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bitset:804:11: note: 'std::bitset' declared here
  804 |     class bitset
      |           ^~~~~~
a.cc:2:23: error: 'x' was not declared in this scope
    2 | int main() {bitset<6> x;std::cin>>x;std::cout<<x.count()<<std::endl;}
      |                       ^
Language: C++

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

int main() {
  string s;
  cin >> s;
  int ans = 0;
  for(int i = 0; i < s.size(); i++){
    if(s[i] == "1") ans++;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |     if(s[i] == "1") ans++;
Language: C++

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

int main() {
  stirng s;
  cin >> s;
  int ans = 0;
  for(int i = 0; i < s.size(); i++){
    if(s[i] == "1") ans++;
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'stirng' was not declared in this scope
    5 |   stirng s;
      |   ^~~~~~
a.cc:6:10: error: 's' was not declared in this scope
    6 |   cin >> s;
      |          ^
Language: C++

#include <iostream>
#include <vector>
#include <string>

int main(){
  std::string S;
  std::cin >> S;
  long int N = S.size();
  int count = 0;
  for(int i=0; i < N; ++i){
    if(S[i] == "1") count++;
  }
  std::cout << count << std::endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   11 |     if(S[i] == "1") count++;
Language: C++

#include <iostream>
//#include <iomanip>
//#include <string>
//#include <vector>
//#include <algorithm>
//#include <utility>
//#include <set>
//#include <map>
//#include <queue>
//#include <bitset>
//#include <math.h>
using namespace std ;
//using ll = long long ;
//using ld = long double ;
//using vll = vector<ll> ;
//using vvll = vector<vll> ;
//using vc = vector<char> ;
//using vvc = vector<vc> ;
//using vb = vector<bool> ;
//using vvb = vector<vb> ;
//using pll = pair<ll,ll> ;

//ll mod = 1000000007 ;
//long double pie = acos(-1) ;

//string yorn(bool a){if(a) return"Yes" ; return "No" ;}
//string YorN(bool a){if(a) return"YES" ; return "NO" ;}
//ll gcd(long long a,long long b){if(b==0) return a ; return gcd(b,a%b) ;}
//ll lcm(long long a,long long b){return a/gcd(a,b)*b ;}
//ll sa(long long a,long long b){if(a>b) return a-b ; return b-a ;}
//void mysort(vector<long long> &a){sort(a.begin(),a.end()) ;}
//void myrev(vector<long long> &a){reverse(a.begin(),a.end()) ;}

int main(){
	int cnt = 0 ;
	for(int i=0;i<6;i++){
		char n ; cin >> n ;
		cnt += c-'0' ;
	}
	cout << cnt << endl ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:38:24: error: 'c' was not declared in this scope
   38 |                 cnt += c-'0' ;
      |                        ^
Language: C++

#include <iostream>
//#include <iomanip>
//#include <string>
//#include <vector>
//#include <algorithm>
//#include <utility>
//#include <set>
//#include <map>
//#include <queue>
//#include <bitset>
//#include <math.h>
using namespace std ;
//using ll = long long ;
//using ld = long double ;
//using vll = vector<ll> ;
//using vvll = vector<vll> ;
//using vc = vector<char> ;
//using vvc = vector<vc> ;
//using vb = vector<bool> ;
//using vvb = vector<vb> ;
//using pll = pair<ll,ll> ;

//ll mod = 1000000007 ;
//long double pie = acos(-1) ;

string yorn(bool a){if(a) return"Yes" ; return "No" ;}
//string YorN(bool a){if(a) return"YES" ; return "NO" ;}
//ll gcd(long long a,long long b){if(b==0) return a ; return gcd(b,a%b) ;}
//ll lcm(long long a,long long b){return a/gcd(a,b)*b ;}
//ll sa(long long a,long long b){if(a>b) return a-b ; return b-a ;}
//void mysort(vector<long long> &a){sort(a.begin(),a.end()) ;}
//void myrev(vector<long long> &a){reverse(a.begin(),a.end()) ;}

int main(){
	int cnt = 0 ;
	for(int i=0;i<6;i++){
		char n ; cin >> n ;
		cnt += c-'0' ;
	}
	cout << cnt << endl ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:38:24: error: 'c' was not declared in this scope
   38 |                 cnt += c-'0' ;
      |                        ^
Language: C++

#define _USE_NATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
#include <random>
#include <tuple>


using namespace std;
#define REP (i,m,n) for(int i=( int)m ; i < (int ) n ; ++i )
#define rep (i,n) REP(i,0,n)
using ll = long long;
#define EPS 1e-9
const int INF = 1050000000;
const long long LINF = 1LL << 60;
const ll MOD = 1e9 + 7;
const int MINF = -1050000000;

template<class T> inline bool chmax(T & a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T & a, T b) { if (a > b) { a = b; return true; } return false; }

int main() {
                 string s;
                cin >> s;
                 int res = 0;
                 rep(i, s.size()) {
                                 if (s[ i] == '1') res++;
                }
                cout << res << endl;
                 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:14: error: 'i' was not declared in this scope
   30 | #define rep (i,n) REP(i,0,n)
      |              ^
a.cc:45:18: note: in expansion of macro 'rep'
   45 |                  rep(i, s.size()) {
      |                  ^~~
a.cc:30:16: error: 'n' was not declared in this scope
   30 | #define rep (i,n) REP(i,0,n)
      |                ^
a.cc:45:18: note: in expansion of macro 'rep'
   45 |                  rep(i, s.size()) {
      |                  ^~~
a.cc:29:16: error: 'm' was not declared in this scope
   29 | #define REP (i,m,n) for(int i=( int)m ; i < (int ) n ; ++i )
      |                ^
a.cc:30:19: note: in expansion of macro 'REP'
   30 | #define rep (i,n) REP(i,0,n)
      |                   ^~~
a.cc:45:18: note: in expansion of macro 'rep'
   45 |                  rep(i, s.size()) {
      |                  ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
 string str;
  cin>>str;
  int ans;
  for(int i=0;i<n;i++){
    if(str.at(i)=='1'){
      ans++;
    }
  }
  cout<<ans<<endl;
}
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:17: error: 'n' was not declared in this scope
    7 |   for(int i=0;i<n;i++){
      |                 ^
a.cc: At global scope:
a.cc:14:2: error: expected unqualified-id before 'return'
   14 |  return 0;
      |  ^~~~~~
a.cc:15:1: error: expected declaration before '}' token
   15 | }
      | ^
Language: C++

#include<bits/stc++.h>
using namespace std;
int n,ans;
char ch;
int main(){
    for(int i=0;i<6;++i){
        cin>>ch;
        if(ch=='1') ans++;
    }
    cout<<ans<<endl;
    return 0;
}

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

import java.util.Arrays;
import java.util.*;
public class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
      String s = sc.next();
      int count =0;
      for(int i=0;i<6;i++){
        if(s[i]==1){
          count++;
        }
      }
      System.out.println(count);
    }
}


Compiler output:
Main.java:9: error: array required, but String found
        if(s[i]==1){
            ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int ans;
    string s;
    cin>>s;
    for (int i=0;i<s.size();i++) if (s[i]=="1") ans++;
    cout<<ans;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:42: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    8 |     for (int i=0;i<s.size();i++) if (s[i]=="1") ans++;
Language: C++

#include <bits/stdc++.h?
using namespace std;
int main()
{
    int ans;
    string s;
    cin>>s;
    for (int i=0;i<s.size();i++) if (s[i]=="1") ans++;
    cout<<ans;
    return 0;
}

Compiler output:
a.cc:1:25: error: missing terminating > character
    1 | #include <bits/stdc++.h?
      |                         ^
a.cc:1:10: fatal error: bits/stdc++.h?: No such file or directory
    1 | #include <bits/stdc++.h?
      |          ^
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  char s[10];
  cin >> s;
  int q;
  for(int i=0;i<6;i++){
    if(s=='1'){
      q++;
    }
  }
  cout << q;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    8 |     if(s=='1'){
      |        ~^~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
string s;
int k 
int main()
{
	cin>>s;
	for(int i=0;i<s.size();i++)
		if(s[i]=='1') k++;
	cout<<k;
	return 0; 
}

Compiler output:
a.cc:5:1: error: expected initializer before 'int'
    5 | int main()
      | ^~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  string s;
  int ans;
  cin >> s;
  ans = 0;
  for(int i=0;i<6;i++){
    if(s.at(i)=="1"){
      ans += 1
    }
  }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |     if(s.at(i)=="1"){
      |        ~~~~~~~^~~~~
a.cc:10:15: error: expected ';' before '}' token
   10 |       ans += 1
      |               ^
      |               ;
   11 |     }
      |     ~
Language: C

#include<stdio.h>
int main() {
	int ans, S = 0;
	scanf_s("%d",&S);
	for ( S; S > 0; S /=10 ) {
		ans = 0;
		if (S == 0) {
			break;
		}else if (S % 10 == 1) {
			ans += 1;
		}
		S /= 10;
		//printf("%d\n", S);
	}
	printf("%d\n", ans);
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |         scanf_s("%d",&S);
      |         ^~~~~~~
      |         scanf
Language: C

#include<stdio.h>
int main() {
	int ans, S = 0;
	scanf_s("%d",&S);
	for ( S; S > 0; S /=10 ) {
		ans = 0;
		if (S == 0) {
			break;
		}else if (S % 10 == 1) {
			ans += 1;
		}
		S /= 10;
		printf("%d\n", S);
	}
	//printf("%d\n", ans);
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |         scanf_s("%d",&S);
      |         ^~~~~~~
      |         scanf
Language: C

#include<stdio.h>
int main() {
	int ans, S = 0;
	scanf_s("%d",&S);
	for ( S; S > 0; S /=10 ) {
		ans = 0;
		if (S == 0) {
			break;
		}else if (S % 10 == 1) {
			ans += 1;
		}
		S /= 10;
		printf("%d\n", S);
	}
	printf("%d\n", ans);
	return 0;
}


Compiler output:
main.c: In function 'main':
main.c:4:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    4 |         scanf_s("%d",&S);
      |         ^~~~~~~
      |         scanf