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

#include <iostream>
#include <cmath>
#include <cstdio>
#include <vector>
#include <string>

using namespace std;

int main() {
    int flag = 1;
    int sum = 0;
    string s;
    cin >> s;
    reverse(s.begin(), s.end());
    while (1)
    {
        size_t dreamer, eraser, dream, erase;
        dream = s.find("maerd");
        if (dream != -1)
        {
            s.replace(dream, 5, "0");
        }
        dreamer = s.find("remaerd");
        if (dreamer != -1)
        {
            s.replace(dreamer, 7, "0");
        }
        erase = s.find("esare");
        if (erase != -1)
        {
            s.replace(erase, 5, "0");
        }
        eraser = s.find("resare");
        if (eraser != -1)
        {
            s.replace(eraser, 6, "0");
        }
        
        

        dreamer = s.find("remaerd");
        eraser = s.find("resare");
        dream = s.find("maerd");
        erase = s.find("esare");

        if (dreamer == -1 && eraser == -1 && dream == -1 && erase == -1)
        {
            for (int i = 0; i < s.length(); i++)
            {
                sum += s[i] - 48;
            }

            if (sum == 0)
            {
                cout << "Yes" << endl;
                exit(0);
            }
            else
            {
                cout << "No" << endl;
                exit(0);
            }

        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: 'reverse' was not declared in this scope
   14 |     reverse(s.begin(), s.end());
      |     ^~~~~~~
Language: C++


#include <iostream>
#include <vector>
#include <array>
#include <cmath>

using namespace std;
#define ll long long


int main()
{
    // Value
    string S;
    string result = "YES";

    // Input
    cin>>S;

    // Cal
    ll size = S.size();
    ll cnt=0;
    for(;cnt<size-4;){
        //
        string five = S.substr(cnt, 5);
        string six;
        string seven;
        string tt;
        if(cnt<size-5) six = S.substr(cnt, 6);
        if(cnt<size-6) seven = S.substr(cnt, 7);
        if(cnt<size-10) tt = S.substr(cnt, 11);
        if(cnt<size-10 && tt = "dreameraser"){
            cnt+=11;
        }else if(cnt<size-6 && seven == "dreamer"){
            cnt+=7;
        }else if(cnt<size-5 && six == "eraser"){
            cnt+=6;
        }else if(five == "dream" || five == "erase"){
            cnt+=5;
        }else{
            result = "NO";
            break;
        }
    }
    if(cnt!=size) result="NO";

    // Output
    cout << result << endl;

    // Fin
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:24: error: no match for 'operator&&' (operand types are 'bool' and 'std::string' {aka 'std::__cxx11::basic_string<char>'})
   32 |         if(cnt<size-10 && tt = "dreameraser"){
      |            ~~~~~~~~~~~ ^~ ~~
      |               |           |
      |               bool        std::string {aka std::__cxx11::basic_string<char>}
a.cc:32:24: note: candidate: 'operator&&(bool, bool)' (built-in)
   32 |         if(cnt<size-10 && tt = "dreameraser"){
      |            ~~~~~~~~~~~~^~~~~
a.cc:32:24: note:   no known conversion for argument 2 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'bool'
Language: C++


#include <iostream>
#include <vector>
#include <array>
#include <cmath>

using namespace std;
#define ll long long


int main_()
{
    // Value
    string S;
    string result = "YES";

    // Input
    cin>>S;

    // Cal
    ll size = S.size();
    ll cnt=0;
    for(;cnt<size-4;){
        //
        string five = S.substr(cnt, 5);
        string six;
        if(cnt<size-5) six = S.substr(cnt, 6);
        if(cnt<size-5 &&( six == "dreamer" || six == "eraser")){
            cnt+=6;
        }else if(five == "dream" || five == "erase"){
            cnt+=5;
        }else{
            result = "NO";
            break;
        }
    }
    if(cnt!=size) result="NO";

    // Output
    cout << result << endl;

    // Fin
    return 0;
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <vector>
#include <array>
#include <cmath>

using namespace std;
#define ll long long


int main_()
{
    // Value
    string S;
    string result = "YES";

    // Input
    cin>>S;

    // Cal
    ll size = S.size();
    ll cnt=0;
    for(;cnt<size-4;){
        //
        string five = S.substr(cnt, 5);
        string six;
        if(cnt<size-5) six = S.substr(cnt, 6);
        if(cnt<size-5 || six == "dreamer" || six == "eraser"){
            cnt+=6;
        }else if(five == "dream" || five == "erase"){
            cnt+=5;
        }else{
            result = "NO";
            break;
        }
    }
    if(cnt!=size) result="NO";

    // Output
    cout << result << endl;

    // Fin
    return 0;
}



Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++


#include <iostream>
#include <vector>
#include <array>
#include <cmath>

using namespace std;
#define ll long long


int main()
{
    // Value
    string S;
    string result = "YES";

    // Input
    cin>>S;

    // Cal
    ll size = S.size();
    for(int cnt=0;cnt<size-5;){
        //
        string five = S.substr(cnt, 5);
        string six;
        if(cnt<size-6) six = S.substr(cnt, 6);
        if(six == "dreamer" || six == "eraser"){
            cnt+=6;
        }else if(cnt<size-6 || five == "dream" || five == "erase"){
            cnt+=5;
        }else{
            result = "NO";
            break;
        }
    }
    if(cnt!=size) result="NO";

    // Output
    cout << result << endl;

    // Fin
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:8: error: 'cnt' was not declared in this scope; did you mean 'int'?
   36 |     if(cnt!=size) result="NO";
      |        ^~~
      |        int
Language: C++

#include <iostream>
#include <vector>
#include <array>
#include <cmath>

using namespace std;
#define ll long long


int main()
{
    // Value
    string S;
    string result = "YES";

    // Input
    cin>>S;

    // Cal
    ll size = S.size();
    for(int cnt=0;cnt<size-5;){
        //
        string five = S.substr(cnt, 5);
        if(cnt!=size-7) string six = S.substr(cnt, 6);
        if(six == "dreamer" || six == "eraser"){
            cnt+=6;
        }else if(cnt!=size-7 || five == "dream" || five == "erase"){
            cnt+=5;
        }else{
            result = "NO";
            break;
        }
    }

    // Output
    cout << result << endl;

    // Fin
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:12: error: 'six' was not declared in this scope; did you mean 'sin'?
   25 |         if(six == "dreamer" || six == "eraser"){
      |            ^~~
      |            sin
Language: Java

import java.util.*;

public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		if( sc.next().length >100000 ){
			System.out.println("NO");
			return;
		}

		String s = sc.next();
		while(true){
			if(s.equals("")){
				System.out.println("YES");
				return;
			}else if( (s.length()>=11)&&(s.substring(0,11).equals("dreameraser"))){
				s = s.substring(11);
			}else if( (s.length()>=10)&&(s.substring(0,10).equals("dreamerase"))){
				s = s.substring(10);
			}else if( (s.length()>=7)&&(s.substring(0,7).equals("dreamer"))){
				s = s.substring(7);
			}else if( (s.length()>=6)&&(s.substring(0,6).equals("eraser"))){
				s = s.substring(6);
			}else if( (s.length()>=5)&&(s.substring(0,5).equals("dream"))){
				s = s.substring(5);
			}else if( (s.length()>=5)&&(s.substring(0,5).equals("erase"))){
				s = s.substring(5);
			}else{
				System.out.println("NO");
				return;
			}
		}
	}
}

Compiler output:
Main.java:7: error: cannot find symbol
		if( sc.next().length >100000 ){
		             ^
  symbol:   variable length
  location: class String
1 error
Language: C++

#include<bits/stdc++.h>
#define ll          long long
#define pb          push_back
#define mp          make_pair
#define pii         pair<int,int>
#define vi          vector<int>
#define all(a)      (a).begin(),(a).end()
#define F           first
#define S           second
#define sz(x)       (int)x.size()
#define hell        1000000007
#define endl        '\n'
#define rep(i,a,b)	for(int i=a;i<b;i++)
using namespace std;
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int t=1;
//	cin>>t;
	while(t--)
	{
		int r=0,i;
		char a[100001];
		cin>>a;
		strrev(a);
		for(i=0;i<strlen(a);)
		{
			r=0;
			if(a[i]=='m'&&a[i+1]=='a'&&a[i+2]=='e'&&a[i+3]=='r'&&a[i+4]=='d')
			{i+=5;r=1;}
			if(a[i]=='e'&&a[i+1]=='s'&&a[i+2]=='a'&&a[i+3]=='r'&&a[i+4]=='e')
			{i+=5;r=1;}
			if(a[i]=='r'&&a[i+1]=='e'&&a[i+2]=='m'&&a[i+3]=='a'&&a[i+4]=='e'&&a[i+5]=='r'&&a[i+6]=='d')
			{i+=7;r=1;}
			if(a[i]=='r'&&a[i+1]=='e'&&a[i+2]=='s'&&a[i+3]=='a'&&a[i+4]=='r'&&a[i+5]=='e')
			{i+=6;r=1;}
			if(r==0)
			break;
		}
		cout<<(r!=0?"YES":"NO");
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:17: error: 'strrev' was not declared in this scope; did you mean 'strsep'?
   26 |                 strrev(a);
      |                 ^~~~~~
      |                 strsep
Language: C++

// -----------------------------------
// author   : MatsuTaku
// country  : Japan
// created  : 09/03/20 01:08:28
// -----------------------------------

#include <bits/stdc++.h>
#include "../../../library/include/unionfind.hpp"

using namespace std;
using ll = long long;

int main() {
  cin.tie(nullptr); ios::sync_with_stdio(false);

  int n,k,l; cin>>n>>k>>l;
  UnionFind cr(n), ct(n);
  for (int i = 0; i < k; i++) {
    int p,q; cin>>p>>q; p--; q--;
    cr.unite(p,q);
  }
  for (int i = 0; i < l; i++) {
    int p,q; cin>>p>>q; p--; q--;
    ct.unite(p,q);
  }
  unordered_map<uint64_t,int> id(n);
  for (int i = 0; i < n; i++) {
    id[(uint64_t)cr.root(i) << 32 | ct.root(i)]++;
  }
  for (int i = 0; i < n; i++) {
    cout << id[(uint64_t)cr.root(i) << 32 | ct.root(i)] << " ";
  }
  cout << endl;

  return 0;
}


Compiler output:
a.cc:8:10: fatal error: ../../../library/include/unionfind.hpp: No such file or directory
    8 | #include "../../../library/include/unionfind.hpp"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

class UnionFind {
public:
    vector <int> par; // 各元の親を表す配列
    vector <int> siz; // 素集合のサイズを表す配列(1 で初期化)

    // Constructor
    UnionFind(int sz_): par(sz_), siz(sz_, 1) {
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }
    void init(int sz_) {
        par.resize(sz_);
        siz.assign(sz_, 1LL);  // resize だとなぜか初期化されなかった
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }

    // Member Function
    // Find
    int root(int x) { // 根の検索
        while (par[x] != x) {
            x = par[x] = par[par[x]]; // x の親の親を x の親とする
        }
        return x;
    }

    // Union(Unite, Merge)
    bool merge(int x, int y) {
        x = root(x);
        y = root(y);
        if (x == y) return false;
        // merge technique（データ構造をマージするテク．小を大にくっつける）
        if (siz[x] < siz[y]) swap(x, y);
        siz[x] += siz[y];
        par[y] = x;
        return true;
    }

    bool issame(int x, int y) { // 連結判定
        return root(x) == root(y);
    }

    int size(int x) { // 素集合のサイズ
        return siz[root(x)];
    }
};

int main(){
  ios::sync_with_stdio(false);
　std::cin.tie(0);
   
  int n,k,l;
  cin >> n >> k >> l;
  UnionFind road(n), rail(n);
  while(k--){
    int p,q;
    cin >> p >> q;
    p--;
    q--;
    road.merge(p,q);   
  }
  while(l--){
    int r,s;
    cin >> r >> s;
    r--;
    s--;
    rail.merge(r,s);
  }
  rep(i,n){
    int cnt = 0;
    rep(j,n){
      if(road.issame(i,j) && rail.issame(i,j))cnt++;
    }
    cout << cnt << " ";
  }
  return 0;
}


Compiler output:
a.cc:55:1: error: extended character 　 is not valid in an identifier
   55 | 　std::cin.tie(0);
      | ^
a.cc: In function 'int main()':
a.cc:55:1: error: '\U00003000std' has not been declared
   55 | 　std::cin.tie(0);
      | ^~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

class UnionFind {
public:
    vector <int> par; // 各元の親を表す配列
    vector <int> siz; // 素集合のサイズを表す配列(1 で初期化)

    // Constructor
    UnionFind(int sz_): par(sz_), siz(sz_, 1) {
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }
    void init(int sz_) {
        par.resize(sz_);
        siz.assign(sz_, 1LL);  // resize だとなぜか初期化されなかった
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }

    // Member Function
    // Find
    int root(int x) { // 根の検索
        while (par[x] != x) {
            x = par[x] = par[par[x]]; // x の親の親を x の親とする
        }
        return x;
    }

    // Union(Unite, Merge)
    bool merge(int x, int y) {
        x = root(x);
        y = root(y);
        if (x == y) return false;
        // merge technique（データ構造をマージするテク．小を大にくっつける）
        if (siz[x] < siz[y]) swap(x, y);
        siz[x] += siz[y];
        par[y] = x;
        return true;
    }

    bool issame(int x, int y) { // 連結判定
        return root(x) == root(y);
    }

    int size(int x) { // 素集合のサイズ
        return siz[root(x)];
    }
};

int main(){
  ios::sync_with_stdio(false);
　std::cin.tie(nullptr);
   
  int n,k,l;
  cin >> n >> k >> l;
  UnionFind road(n), rail(n);
  while(k--){
    int p,q;
    cin >> p >> q;
    p--;
    q--;
    road.merge(p,q);   
  }
  while(l--){
    int r,s;
    cin >> r >> s;
    r--;
    s--;
    rail.merge(r,s);
  }
  rep(i,n){
    int cnt = 0;
    rep(j,n){
      if(road.issame(i,j) && rail.issame(i,j))cnt++;
    }
    cout << cnt << " ";
  }
  return 0;
}


Compiler output:
a.cc:55:1: error: extended character 　 is not valid in an identifier
   55 | 　std::cin.tie(nullptr);
      | ^
a.cc: In function 'int main()':
a.cc:55:1: error: '\U00003000std' has not been declared
   55 | 　std::cin.tie(nullptr);
      | ^~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
using namespace std;
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

class UnionFind {
public:
    vector <int> par; // 各元の親を表す配列
    vector <int> siz; // 素集合のサイズを表す配列(1 で初期化)

    // Constructor
    UnionFind(int sz_): par(sz_), siz(sz_, 1) {
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }
    void init(int sz_) {
        par.resize(sz_);
        siz.assign(sz_, 1LL);  // resize だとなぜか初期化されなかった
        for (int i = 0; i < sz_; ++i) par[i] = i; // 初期では親は自分自身
    }

    // Member Function
    // Find
    int root(ll x) { // 根の検索
        while (par[x] != x) {
            x = par[x] = par[par[x]]; // x の親の親を x の親とする
        }
        return x;
    }

    // Union(Unite, Merge)
    bool merge(int x, int y) {
        x = root(x);
        y = root(y);
        if (x == y) return false;
        // merge technique（データ構造をマージするテク．小を大にくっつける）
        if (siz[x] < siz[y]) swap(x, y);
        siz[x] += siz[y];
        par[y] = x;
        return true;
    }

    bool issame(int x, int y) { // 連結判定
        return root(x) == root(y);
    }

    int size(int x) { // 素集合のサイズ
        return siz[root(x)];
    }
};

int main(){
  ios::sync_with_stdio(false);
　std::cin.tie(nullptr);
   
  int n,k,l;
  cin >> n >> k >> l;
  UnionFind road(n), rail(n);
  while(k--){
    int p,q;
    cin >> p >> q;
    p--;
    q--;
    road.merge(p,q);   
  }
  while(l--){
    int r,s;
    cin >> r >> s;
    r--;
    s--;
    rail.merge(r,s);
  }
  rep(i,n){
    int cnt = 0;
    rep(j,n){
      if(road.issame(i,j) && rail.issame(i,j))cnt++;
    }
    cout << cnt << " ";
  }
  return 0;
}


Compiler output:
a.cc:55:1: error: extended character 　 is not valid in an identifier
   55 | 　std::cin.tie(nullptr);
      | ^
a.cc:25:14: error: 'll' has not been declared
   25 |     int root(ll x) { // 根の検索
      |              ^~
a.cc: In function 'int main()':
a.cc:55:1: error: '\U00003000std' has not been declared
   55 | 　std::cin.tie(nullptr);
      | ^~~~~
Language: C++

#include <bits/stdc++.h>
#include <math.h>

using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
typedef long long ll;
using Graph = vector<vector<int>>;
typedef long long ll;
typedef pair<int, int> P;

const int MOD = 1000000007;
const int INF_32 = 1LL << 30;
const int64_t INF_64 = 1LL << 60;

const int mod = 1000000007;

struct UnionFind {
    vector<int> par;

    UnionFind(int n)
        : par(n, -1)
    {
    }
    void init(int n) { par.assign(n, -1); }

    int root(int x)
    {
        if (par[x] < 0)
            return x;
        else
            return par[x] = root(par[x]);
    }

    bool issame(int x, int y)
    {
        return root(x) == root(y);
    }

    bool merge(int x, int y)
    {
        x = root(x);
        y = root(y);
        if (x == y)
            return false;
        if (par[x] > par[y])
            swap(x, y); // merge technique
        par[x] += par[y];
        par[y] = x;
        return true;
    }

    int size(int x)
    {
        return -par[root(x)];
    }
};

int main()
{
    in N, K, L;
    cin >> N >> K >> L;
    UnionFind uf(N), uf2(N);
    for (int i = 0; i < K; i++) {
        int a, b;
        cin >> a >> b;
        --a, --b;
        uf1.merge(a, b);
    }
    for (int i = 0; i < L; i++) {
        int a, b;
        cin >> a >> b;
        --a, --b;
        uf2.merge(a, b);
    }

    using pint = pair<int, int>;
    map<pint, int> ma;
    for (int v = 0; v < N; v++) {
        pint p(uf1.root(v), uf2.root(v));
        ma[p]++;
    }
    for (int v = 0; v < N; v++) {
        pint p(uf1.root(v), uf2.root(v));
        cout << ma[p] << " ";
    }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:61:5: error: 'in' was not declared in this scope; did you mean 'yn'?
   61 |     in N, K, L;
      |     ^~
      |     yn
a.cc:62:12: error: 'N' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |            ^
a.cc:62:17: error: 'K' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |                 ^
a.cc:62:22: error: 'L' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |                      ^
a.cc:68:9: error: 'uf1' was not declared in this scope; did you mean 'uf2'?
   68 |         uf1.merge(a, b);
      |         ^~~
      |         uf2
a.cc:80:16: error: 'uf1' was not declared in this scope; did you mean 'uf2'?
   80 |         pint p(uf1.root(v), uf2.root(v));
      |                ^~~
      |                uf2
a.cc:84:16: error: 'uf1' was not declared in this scope; did you mean 'uf2'?
   84 |         pint p(uf1.root(v), uf2.root(v));
      |                ^~~
      |                uf2
Language: C++

#include <bits/stdc++.h>
#include <math.h>

using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
typedef long long ll;
using Graph = vector<vector<int>>;
typedef long long ll;
typedef pair<int, int> P;

const int MOD = 1000000007;
const int INF_32 = 1LL << 30;
const int64_t INF_64 = 1LL << 60;

const int mod = 1000000007;

struct UnionFind {
    vector<int> par;

    UnionFind(int n)
        : par(n, -1)
    {
    }
    void init(int n) { par.assign(n, -1); }

    int root(int x)
    {
        if (par[x] < 0)
            return x;
        else
            return par[x] = root(par[x]);
    }

    bool issame(int x, int y)
    {
        return root(x) == root(y);
    }

    bool merge(int x, int y)
    {
        x = root(x);
        y = root(y);
        if (x == y)
            return false;
        if (par[x] > par[y])
            swap(x, y); // merge technique
        par[x] += par[y];
        par[y] = x;
        return true;
    }

    int size(int x)
    {
        return -par[root(x)];
    }
};

int main()
{
    in N, K, L;
    cin >> N >> K >> L;
    UnionFind urf(N), urf2(N);
    for (int i = 0; i < K; i++) {
        int a, b;
        cin >> a >> b;
        --a, --b;
        uf1.merge(a, b);
    }
    for (int i = 0; i < L; i++) {
        int a, b;
        cin >> a >> b;
        --a, --b;
        uf2.merge(a, b);
    }

    using pint = pair<int, int>;
    map<pint, int> ma;
    for (int v = 0; v < N; v++) {
        pint p(uf1.root(v), uf2.root(v));
        ma[p]++;
    }
    for (int v = 0; v < N; v++) {
        pint p(uf1.root(v), uf2.root(v));
        cout << ma[p] << " ";
    }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:61:5: error: 'in' was not declared in this scope; did you mean 'yn'?
   61 |     in N, K, L;
      |     ^~
      |     yn
a.cc:62:12: error: 'N' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |            ^
a.cc:62:17: error: 'K' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |                 ^
a.cc:62:22: error: 'L' was not declared in this scope
   62 |     cin >> N >> K >> L;
      |                      ^
a.cc:68:9: error: 'uf1' was not declared in this scope
   68 |         uf1.merge(a, b);
      |         ^~~
a.cc:74:9: error: 'uf2' was not declared in this scope; did you mean 'urf2'?
   74 |         uf2.merge(a, b);
      |         ^~~
      |         urf2
a.cc:80:16: error: 'uf1' was not declared in this scope
   80 |         pint p(uf1.root(v), uf2.root(v));
      |                ^~~
a.cc:80:29: error: 'uf2' was not declared in this scope; did you mean 'urf2'?
   80 |         pint p(uf1.root(v), uf2.root(v));
      |                             ^~~
      |                             urf2
a.cc:84:16: error: 'uf1' was not declared in this scope
   84 |         pint p(uf1.root(v), uf2.root(v));
      |                ^~~
a.cc:84:29: error: 'uf2' was not declared in this scope; did you mean 'urf2'?
   84 |         pint p(uf1.root(v), uf2.root(v));
      |                             ^~~
      |                             urf2
Language: C++

import collections

NO_OF_DIMENSIONS = 2
no_of_edges_by_dim = [0] * NO_OF_DIMENSIONS
n, no_of_edges_by_dim[0], no_of_edges_by_dim[1] = (int(x) for x in input().split())

graph_by_dimension = [[[] for _ in range(n + 1)] for _ in range(NO_OF_DIMENSIONS)]

for dimension, no_of_edges in enumerate(no_of_edges_by_dim):
    graph = graph_by_dimension[dimension]
    for _ in range(no_of_edges):
        p, q = (int(x) for x in input().split())
        graph[p].append(q)
        graph[q].append(p)

components_ids_by_vertex = [[None] * NO_OF_DIMENSIONS for _ in range(n + 1)]

def dfs(dimension_id, vertex_id, colour):
    components_ids_by_vertex[vertex_id][dimension_id] = colour
    for s in graph_by_dimension[dimension_id][vertex_id]:
        if not components_ids_by_vertex[s][dimension_id]:
            dfs(dimension_id, s, colour)

for i in range(NO_OF_DIMENSIONS):
    for j in range(1, n + 1):
        if not components_ids_by_vertex[j][i]:
            dfs(i, j, j)

components_ids_by_vertex = [tuple(x) for x in components_ids_by_vertex]

results = collections.Counter(components_ids_by_vertex)

for i in range(1, n + 1):
    print(results[components_ids_by_vertex[i]], end=' ')
print()


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

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

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; }

using ll = long long;

const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
const int INF = 1<<30;
const ll mod = 1000000007LL;

struct UnionFind {
    vector<int> par,rank,large;

    void init(int N){
        rank.assign(N,0);
        large.assign(N,1);
        par.resize(N);
        for(int i= 0; i < N; i++){
            par[i]=i;
        }
    }

    int root(int x) {
        if (par[x] == x) return x;
        return par[x] = root(par[x]);
    }

    void unite(int x, int y) {
        int rx = root(x);
        int ry = root(y);
        if (rx == ry) return;
        if(rank[rx]<rank[ry]) {
            par[rx]=ry;
            large[ry]+=large[rx];
            large[rx]=0;
        }
        else {
            par[ry]=rx;
            large[rx]+=large[ry];
            large[ry]=0;
            if(rank[rx]==rank[ry])rank[x]++;
        }
    }

    bool same(int x, int y) {
        int rx = root(x);
        int ry = root(y);
        return rx == ry;
    }

    int size(int x) {
        return large[root(x)];
    }
};

int main() {
  int N,K,L;
  cin>>N>>K>>L;
  UnionFind A,B,C;
  A.init(N);
  B.init(N);
  C.init(N)
  for(int i = 0; i < K; i++){
    ll x,y;
    cin>>x>>y;
    A.unite(x-1,y-1);
  }
  for(int i = 0; i < L; i++){
    ll x,y;
    cin>>x>>y;
    if(A.same(x-1,y-1)) C.unite(x-1,y-1);
  }
  for(int i = 0; i < N; i++){
    cout<<C.size(i)<<" ";
  }
  cout<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:65:12: error: expected ';' before 'for'
   65 |   C.init(N)
      |            ^
      |            ;
   66 |   for(int i = 0; i < K; i++){
      |   ~~~       
a.cc:66:18: error: 'i' was not declared in this scope
   66 |   for(int i = 0; i < K; i++){
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define ll long long
#define all(x) (x).begin(),(x).end()
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b;return true;}return false;}
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

struct UnionFind{
    vector<int>p;
    UnionFind(int n){
        p.resize(n, -1);
    }
 
    void unite(int x, int y){
        x = find(x);
        y = find(y);
        if (x == y) return;
        if (x < y) swap(x,y);
        p[x] = y;
    }
 
    int find(int x){
        if (p[x] == -1) return x;
        else return p[x] = find(p[x]);
    }
 
};

int main() {
    int N, K, L;
    cin >> N >> K >> L;
    UnionFind Road(N);
    UnionFind Train(N);

    for (int i=0; i<K; i++){
        int pi, qi;
        cin >> pi >> qi;
        Road.unite(pi-1,qi-1);
    }

    for (int i=0; i<L; i++){
        int ri, si;
        cin >> ri >> si;
        Train.unite(ri-1, si-1);
    }
    map<pair<int,int>, int>mp;
    for (int i=0; i<N; i++){
        pair<int,int>pr;
        pr.first = Road.find(i);
        pr.second = Train.find(i);

        mp[pr]++;
    }

    for (int i=0; i<N; i++){
        pair<int, int>pr;
        pr.first = Road.find(i);
        pr.second = Train.find(i);

        cout << mp[pr] << endl;
    }



Compiler output:
a.cc: In function 'int main()':
a.cc:62:6: error: expected '}' at end of input
   62 |     }
      |      ^
a.cc:30:12: note: to match this '{'
   30 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <cstdio>
#include <vector>
#include <queue>
#include <map>
#include <numeric>
#include <cmath>

using namespace std;

typedef long long int ll;

#define all(x) x.begin(),x.end()

const ll mod = 1e9+7;
const ll INF = 1e9;
const ll MAXN = 1e9;

struct union_find{
  vector<int> par,r;

  union_find(int n){
  	par.resize(n);
  	r.resize(n);
  	for(int i = 0; i < n; i++) par[i] = i,r[i] = 0;
  }

  int find(int x){
    if(par[x] == x) return x;
    else return find(par[x]);
  }

  void unite(int x,int y){
    x = find(x);
    y = find(y);
    if(r[x] < r[y]){
      par[x] = y;
    }else{
      par[y] = x;
      if(r[x] == r[y]) r[x]++;
    }
  }

  bool same(int x,int y){
  	return find(x) == find(y);
  }
};

int main()
{
	int n,k,l;
	cin >> n >> k >> l;

	union_find road(n),train(n);
	for(int i = 0; i < k; i++){
		int a,b;
		cin >> a >> b;
		a--,b--;
		if(!road.same(a,b)) road.unite(a,b);
	}
	for(int i = 0; i < l; i++){
		int a,b;
		cin >> a >> b;
		a--,b--;
		if(!train.same(a,b)) train.unite(a,b);
	}

	vector<pair<int,int> > com(n);
	map<pair<int,int> ,int> s;
	for(int i = 0; i < n; i++){
		com[i].first = road.find(i);
		com[i].second =  train.find(i);
		s[com[i]]++;
	}

	for(int i = 0; i < n; i++){
		cout << s[com[i]] << " "
	}printf("\n");

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:79:41: error: expected ';' before '}' token
   79 |                 cout << s[com[i]] << " "
      |                                         ^
      |                                         ;
   80 |         }printf("\n");
      |         ~
Language: C++

#include <iostream>
#include <iomanip>
#include <utility>
#include <cmath>
#include <random>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <string>
#include <algorithm>
using namespace std;

#define rep(i,n) for(int i = 0; i<n; ++i)
#define REP(i,n) for(int i = 1; i<n; ++i)
typedef long long ll;
const int inf = 100100100;
const ll INF = 1LL<<60;
const int MOD = (int)1e9 + 7;

class UnionFind{
    vector<int> par; vector<int> rank;
    public:
        UnionFind(int N) : par(N),rank(N){
            for(int i=0; i<N; ++i){ par[i] = i; rank[i] = 0; }
        }

        int find(int x){
            if(par[x] == x)return x;
            return par[x]=find(par[x]);
        }

        //xとyとが所属する集合を併呑する
        void unite(int x,int y){
            int rx = find(x); int ry = find(y);
            if(rx == ry) return;
            if(rank[x]<rank[y]){
                par[rx] = ry;
            }else{
                par[ry] = rx;
                if(rank[rx] == rank[ry])rank[rx]++;
            }
        }

        bool same(int x, int y){
            int ry = find(x); int rx = find(y);
            return rx == ry;
        }
};

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

    int n,k,l; cin>>n>>k>>l; int p,q;
    UnionFind road(n); rep(i,k){ cin>>p>>q; road.unite(--p,--q); }
    UnionFind rail(n); rep(i,l){ cin>>p>>q; rail.unite(--p,--q); }

    rep(i,n){
        int ans = 1;
        rep(j,n){
            if(i!=j){
                if(road.same(i,j) && rail.same(i,j))++ans;
            }
        }
        cout<< ans <<' ';
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:54:33: error: expected primary-expression before '/' token
   54 |     ios::sync_with_stdio(false);/
      |                                 ^
a.cc:56:5: error: expected primary-expression before 'int'
   56 |     int n,k,l; cin>>n>>k>>l; int p,q;
      |     ^~~
a.cc:56:21: error: 'n' was not declared in this scope; did you mean 'yn'?
   56 |     int n,k,l; cin>>n>>k>>l; int p,q;
      |                     ^
      |                     yn
a.cc:56:24: error: 'k' was not declared in this scope
   56 |     int n,k,l; cin>>n>>k>>l; int p,q;
      |                        ^
a.cc:56:27: error: 'l' was not declared in this scope; did you mean 'll'?
   56 |     int n,k,l; cin>>n>>k>>l; int p,q;
      |                           ^
      |                           ll
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)
typedef pair<int,int> P;
int par[400100],Rank[400100];
int n,k,l;
void init(int n){
    for(int i=0; i<n; i++){
        par[i]=i;
        Rank[i]=0;
    }
}
int find(int x){
    if(par[x]==x) return x;
    else return par[x]=find(par[x]);
}
void unite(int x,int y){
    x=find(x);
    y=find(y);
    if(x==y) return;
    if(Rank[x]<Rank[y]) swap(x,y);
    Rank[x]+=Rank[y];
    par[y]=a;
}
bool same(int x,int y){
    return find(x)==find(y);
}
int main() {
    cin >> n >> k >> l;
    vector<P> c(n);
    map<P,int> mp;
    init(2*n);
    for(int i=0; i<k; i++){
        int p,q;
        cin >> p >> q;
        p--;q--;
        unite(p,q);
    }
    for(int i=0; i<l; i++){
        int r,s;
        cin >> r >> s;
        r--;s--;
        unite(r+n,s+n);
    }
    for(int i=0; i<n; i++){
        c[i]=P(par[i],par[i+n]);
        mp[P(par[i],par[i+n])]++;
    }
    for(int i=0; i<n; i++){
        cout << mp[c[i]] << " ";
    }
    cout << endl;
    return 0;
}

Compiler output:
a.cc: In function 'void unite(int, int)':
a.cc:23:12: error: 'a' was not declared in this scope
   23 |     par[y]=a;
      |            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
struct UF {
  vector<int> p;
  UF(int n) : p(n, -1) {}
  int r(int x) {
    if (p[x] < 0) return x;
    return p[x] = r(p[x]);
  }
  void m(int x, int y) {
    x = r(x); y = r(y);
    if (x == y) continue;
    if (-p[x] > -p[y]) swap(x, y);
    p[y] += p[x];
    p[x] = y;
  }
};

int main() {
  int n, k, l; cin >> n >> k >> l;
  UF a(n), b(n);
  while (k--) {
    int f, t; cin >> f >> t; f--; t--;
    a.m(f, t);
  }
  while (l--) {
    int f, t; cin >> f >> t; f--; t--;
    b.m(f, t);
  }
  map<pair<int, int>, int> m;
  for (int i = 0; i < n; i++) {
    m[{a.r(i), b.r(i)}]++;
  }
  for (int i = 0; i < n; i++) {
    cout << m[{a.r(i), b.r(i)}] << endl;
  }
}

Compiler output:
a.cc: In member function 'void UF::m(int, int)':
a.cc:12:17: error: continue statement not within a loop
   12 |     if (x == y) continue;
      |                 ^~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
struct UF {
  vector<int> p;
  UF(int n) : p(n) {iota(p.begin(), p.end(), 0);}
  int r(int x) {
    if (p[x] == 0) return x;
    return p[x] = root(p[x]);
  }
  void m(int x, int y) {
    x = r(x); y = r(y);
    p[x] = y;
  }
};

int main() {
  int n, k, l; cin >> n >> k >> l;
  UF a(n), b(n);
  while (k--) {
    int f, t; cin >> f >> t; f--; t--;
    a.m(f, t);
  }
  while (l--) {
    int f, t; cin >> f >> t; f--; t--;
    b.m(f, t);
  }
  map<pair<int, int>, int> m;
  for (int i = 0; i < n; i++) {
    m[{a.r(i), b.r(i)}]++;
  }
  for (int i = 0; i < n; i++) {
    cout << m[{a.r(i), b.r(i)}] << endl;
  }
}

Compiler output:
a.cc: In member function 'int UF::r(int)':
a.cc:8:19: error: 'root' was not declared in this scope
    8 |     return p[x] = root(p[x]);
      |                   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
struct UnionFind
{
    vector<int> data;

    UnionFind(int sz)
    {
        data.assign(sz,-1);
    }

    bool unite(int x, int y)
    {
        x = find(x), y = find(y);
        if(x == y) return(false);
        if(data[x] > data[y]) swap(x,y);
        data[x] += data[y];
        data[y] = x;
        return(true);
    }

    int find(int k)
    {
        if(data[k] < 0) return(k);
        return(data[k] = find(data[k]));
    }

    int size(int k)
    {
        return(-data[find(k)]);
    }
};

int main(){
    int n,k,l;
    cin >> n >> k >>l;
    struct UnionFind g1(n),g2(n);
    for(int i=0; i<k; i++){
        int p,q;
        cin >> p >> q;
        g1.unite(p-1,q-1);
    }
    for(int i=0; i<l; i++){
        int r,s;
        cin >> r >> s;
        g2.unite(r-1,s-1);
    }
    vector<pair<int,int>> s;
    for(int i=0; i<n; i++){
        s.push_back(make_pair(g1.find(i),g2.find(i)));
    }
    sort(s.begin(),s.end());
    for(int i=0; i<n; i++){
        cout << upper_bound(s.begin(),s.end(),make_pair(g1.find(i),g2.find(i)))
            -  lower_bond(s.begin(),s.end(),make_pair(g1.find(i),g2.find(i))) <<  ' ';
    }
    cout << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:55:16: error: 'lower_bond' was not declared in this scope
   55 |             -  lower_bond(s.begin(),s.end(),make_pair(g1.find(i),g2.find(i))) <<  ' ';
      |                ^~~~~~~~~~
Language: C++

#include <cstdio>
#include <iostream>
#include <tgmath.h>
#include <queue>
#include <cstring>
#include <map>
#include <set>
typedef long long ll;
using namespace std;

const int MAX_N = 1000000;

struct UnionFind{
vector<int> par;
vector<int> rankTree;


void init(int n){
    for(int i=0;i<n;i++){
        par.push_back(i);
        rankTree.push_back(i);

    }    
}

int find(int x){
    if(par[x] == x){
        return x;
    }
    return find(par[x]);
}

bool same(int x,int y){
    return find(x) == find(y);
}

void unite(int x, int y){
    if(same(x,y)){
        return;
    }

    int rootx = find(x);
    int rooty = find(y);
    
    if(rankTree[rootx] < rankTree[rooty]){
        par[rootx] = rooty;
        return;
    }
    par[rooty] = rootx;
    if(rankTree[rootx] == rankTree[rooty]){
        rankTree[rootx] ++;
    }
}
};



int N,K,L;

int p[MAX_N],q[MAX_N],r[MAX_N],s[MAX_N];
int ans[MAX_N];

int main(){
    cin >>N >> K>> L;
    for(int i=0;i<K;i++){
        cin >> p[i] >> q[i];
        u1.unite(p[i],q[i]);
    }
    for(int i=0; i<L;i++){
        cin >> r[i] >> s[i];
        u2.unite(r[i],s[i]);
    }
    UnionFind u1 = UnionFind();
    u1.init(N+1);
    UnionFind u2 = UnionFind();
    u2.init(N+1);
    for(int i=1; i<=N; i++){
        for(int j=1; j<=N; j++){
            if(u1.same(i,j) && u2.same(i,j)){
                ans[i] ++;
            }
        }
        cout << ans[i] << " ";
    }

    cout << endl;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:67:9: error: 'u1' was not declared in this scope; did you mean 'y1'?
   67 |         u1.unite(p[i],q[i]);
      |         ^~
      |         y1
a.cc:71:9: error: 'u2' was not declared in this scope
   71 |         u2.unite(r[i],s[i]);
      |         ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
class unionfind {
    vector<int> par, rank, size_;
public:
    unionfind(int n) :par(n), rank(n), size_(n, 1) {
        iota(all(par), 0);
    }
    int find(int x) {
        if (par[x] == x)return x;
        return par[x] = find(par[x]);
    }
    void unite(int x, int y) {
        x = find(x), y = find(y);
        if (x == y)return;
        if (rank[x] < rank[y])swap(x, y);
        par[y] = x;
        size_[x] += size_[y];
        if (rank[x] == rank[y])rank[x]++;
    }
    bool same(int x, int y) {
        return find(x) == find(y);
    }
    int size(int x) {
        return size_[find(x)];
    }
};

signed main(){
    int N,K,L;
    cin >> N >> K >> L;
    auto t = unionfind(N);
    auto c = unionfind(N);
    for(int i = 0; i < K; ++i){
        int a,b; cin >> a >> b;
        --a,--b;
        t.unite(a,b);
    }
    for(int j = 0; j < L; ++j){
        int a,b; cin >> a >> b;
        --a,--b;
        c.unite(a,b);
    }
    map<pair<int,int>,int>cnt;
    for(int i = 0; i < N; ++i){
        cnt[make_pair(t.find(i), c.find(i))] += 1;
    }
    for(int i = 0; i < N; ++i)
        cout << cnt[make_pair(t.find(i),c.find(i))]<< endl;
}


Compiler output:
a.cc: In constructor 'unionfind::unionfind(int)':
a.cc:7:14: error: 'all' was not declared in this scope; did you mean 'std::filesystem::perms::all'?
    7 |         iota(all(par), 0);
      |              ^~~
      |              std::filesystem::perms::all
In file included from /usr/include/c++/14/filesystem:51,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:200,
                 from a.cc:1:
/usr/include/c++/14/bits/fs_fwd.h:158:7: note: 'std::filesystem::perms::all' declared here
  158 |       all               =  0777,
      |       ^~~
Language: C++

#include <iostream>
#include <cstdio>
#include <string>
#include <algorithm>
#include <utility>
#include <cmath>
#include <vector>
#include <queue>
#include <set>
#include <map>
#define rep(i, n) for(int i = 0; i < n; i++)
using namespace std;
typedef long long ll;
const ll mod = 1000000007;

class UnionFind {
public:
    vector<int> parent;  //親ノード
    vector<int> Siz;  //集合の大きさ

    // コンストラクタ
    UnionFind(int n): parent(n), Siz(n, 1) {
        rep(i, n) {
            parent[i] = i;
        }
    }

    // n要素で初期化
    void init(int n) {
        parent.resize(n);
        Siz.assign(n, 1);
        rep(i, n) {
            parent[i] = i;
        }
    }

    // xの属する集合の根を求める
    int root(int x) {
        if(parent[x] == x) {
            return x;
        }
        else {
            return parent[x] = root(parent[x]);
        }
    }

    // xとyの属する集合を併合
    void unite(int x, int y) {

        x = root(x);
        y = root(y);
        if(x == y) {
            return;
        }

        if(Siz[x] < Siz[y]) {
            swap(x, y);
        }

        Siz[x] += Siz[y];
        parent[y] = x;
    }

    // xとyが同じ集合に属するかどうか
    bool same(int x, int y) {
        return root(x) == root(y);
    }

    // xの属する集合の要素数を求める
    int size(int x) {
        return Siz[root(x)];
    }
};

int main() {
    int n, k, l;
    cin >> n >> k >> l;

    UnionFind Road(n), Rail(n);

    rep(i, k) {
        int p, q;
        cin >> p >> q;
        p--;
        q--;
        Road.unite(p, q);
    }

    rep(i, l) {
        int r, s;
        cin >> r >> s;
        r--;
        s--;
        Rail.unite(r, s);
    }

    map<pair<int, int>> mp;

    rep(i, n) {
        mp[{Road.root(i), Rail.root(i)}]++;
    }

    rep(i, n) {
        cout << mp[{Road.root(i), Rail.root(i)}] << " ";
    }

    cout << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:97:22: error: wrong number of template arguments (1, should be at least 2)
   97 |     map<pair<int, int>> mp;
      |                      ^~
In file included from /usr/include/c++/14/map:63,
                 from a.cc:10:
/usr/include/c++/14/bits/stl_map.h:102:11: note: provided for 'template<class _Key, class _Tp, class _Compare, class _Alloc> class std::map'
  102 |     class map
      |           ^~~
a.cc:100:11: error: invalid types 'int[<brace-enclosed initializer list>]' for array subscript
  100 |         mp[{Road.root(i), Rail.root(i)}]++;
      |           ^
a.cc:104:19: error: invalid types 'int[<brace-enclosed initializer list>]' for array subscript
  104 |         cout << mp[{Road.root(i), Rail.root(i)}] << " ";
      |                   ^
Language: C++

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

struct UnionFind {
  vector<int> p;

  UnionFind(int N) : p(N) {
    for(int i=0; i<N; i++)
      p[i] = i;
  }

  int root(int x) {
    if (p[x] == x)
      return x;
    return p[x] = root(p[x]);
  }

  void unite(int x, int y) {
    int rx = root(x);
    int ry = root(y);
    if (rx == ry)
      return;
    p[rx] = ry;
  }

  bool same(int x, int y) {
    int rx = root(x);
    int ry = root(y);
    return rx == ry;
  }
};

int main() {
  int N,K,L,i,p,q;
  cin >> N >> K >> L;
  UnionFind r(N), t(N);
  map<int,int> m;

  for(i=0; i<K; i++) {
    cin >> p >> q;
    r.unite(p,q);
  }
  for(i=0; i<L; i++) {
    cin >> p >> q;
    if(r.same(p,q))
      t.unite(p,q);
  }

  for(i=0; i<N; i++) {
    if(m.count(t.root(i+1)))
      m.at(t.root(i+1))++;
    else
      m[t.root(i+1)] = 1;
  }

  for(i=0; i<N; i++) {
    if(m.count(root(i+1)))
      cout << m.at(root(i+1));
    else
      cout << 1;
    cout << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:57:16: error: 'root' was not declared in this scope
   57 |     if(m.count(root(i+1)))
      |                ^~~~
Language: C++

// D - 連結 / Connectivity
#include <bits/stdc++.h>
#include "../../template-proj/myMente.h"
using namespace std;
using ll = long long;
using vi = vector<int>;
using vvi = vector<vi>;
#define rp(i,n) for(int i=0;i<(n);i++)
#define up(i,s,e,d) for(int i=(s);i<(e);i+=(d))
#define ot(x) cout<<(x)
#define ote(x) cout<<(x)<<endl

#define MAX 200000

map<int,vi> road, rail;
vector<bool> visit(MAX);
vi road_group(MAX);
vi rail_group(MAX);

void road_dfs(int g, int p){
	if(visit[p]) return;
	visit[p] = true;
	road_group[p] = g;
	for(auto c:road[p]){
		road_dfs(g,c);
	}
}
void rail_dfs(int g, int p){
	if(visit[p]) return;
	visit[p] = true;
	rail_group[p] = g;
	for(auto c:rail[p]){
		rail_dfs(g,c);
	}
}

int main(){
	int N,K,L; cin>>N>>K>>L;

	rp(i,K){
		int p,q;cin>>p>>q;
		road[p-1].push_back(q-1);
	}

	rp(i,L){
		int r,s;cin>>r>>s;
		rail[r-1].push_back(s-1);
	}

	// for(auto v:road){
	// 	ot(v.first);ot(")");
	// 	for(auto e:v.second){
	// 		ot(e);ot(",");
	// 	}
	// 	ot("\n");
	// }ote("---");
	// for(auto v:rail){
	// 	ot(v.first);ot(")");
	// 	for(auto e:v.second){
	// 		ot(e);ot(",");
	// 	}
	// 	ot("\n");
	// }ote("---");

	rp(i,N) visit[i] = false;
	rp(i,N) road_dfs(i,i);
	rp(i,N) visit[i] = false;
	rp(i,N) rail_dfs(i,i);

	// for(int i=0;i<N;++i) cout<<road_group[i]<<",";ote("");//
	// for(int i=0;i<N;++i) cout<<rail_group[i]<<",";ote("");//

	map<pair<int,int>,int> ans;//<<road,rail>,count>
	rp(i,N){
		ans[make_pair(road_group[i], rail_group[i])]++;
	}
	// for(auto p:ans){cout<<p.first.first<<","<<p.first.second<<","<<p.second<<"\n";}

	rp(i,N){
		cout<< ans[make_pair(road_group[i], rail_group[i])];
		cout<<(i+1<N?" ":"\n");
	}
}


Compiler output:
a.cc:3:10: fatal error: ../../template-proj/myMente.h: No such file or directory
    3 | #include "../../template-proj/myMente.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <fstream>
#include <string>
#include <cmath>
#include <cstdio>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <utility>
#include <numeric>
#include <stack>
#include <queue>
#include <map>
#include <unordered_map>
#define MOD 1000000007
#define int long long
using namespace std;
using P = pair<int, int>;
using ll = long long;
using prique = priority_queue<int>;
int par[200000];//親
int urank[200000];//深さ
//n要素で初期化
void init(int n){
    for(int i=0;i<n;i++){
        par[i]=i;
        urank[i]=0;
    }
    return;
}

//木の根を求める
int find(int x){
    if(par[x]==x){
        return x;
    }else{
        return par[x]=find(par[x]);
    }
}

//xとyの属する集合を併合
void unite(int x,int y){
    x=find(x);
    y=find(y);
    if(x==y)return;
    
    if(urank[x]<urank[y]){
        par[x]=y;
    }else{
        par[y]=x;
        if(urank[x]==urank[y])urank[x]++;
    }
    return;
}

//xとyが同じ集合に属するか否か
bool same(int x,int y){
    return find(x)==find(y);
}

int par2[200000];//親
int urank[200000];//深さ
//n要素で初期化
void init2(int n){
    for(int i=0;i<n;i++){
        par2[i]=i;
        urank2[i]=0;
    }
    return;
}

//木の根を求める
int find2(int x){
    if(par2[x]==x){
        return x;
    }else{
        return par2[x]=find2(par2[x]);
    }
}

//xとyの属する集合を併合
void unite2(int x,int y){
    x=find2(x);
    y=find2(y);
    if(x==y)return;
    
    if(urank2[x]<urank2[y]){
        par2[x]=y;
    }else{
        par2[y]=x;
        if(urank2[x]==urank2[y])urank2[x]++;
    }
    return;
}

//xとyが同じ集合に属するか否か
bool same2(int x,int y){
    return find2(x)==find2(y);
}

signed main(){
    int n;
    cin>>n;
    init(n);
    init2(n);
    int k,l;
    cin>>k>>l;
    for(int i=0;i<k;i++){
        int p,q;
        cin>>p>>q;
        unite(p-1,q-1);
    }
    for(int i=0;i<l;i++){
        int p,q;
        cin>>p>>q;
        unite2(p-1,q-1);
    }
    for(int i=0;i<n-1;i++){
        int cnt=0;
        for(int j=0;j<n;j++){
            if(same(i,j)&&same2(i,j))cnt++;
        }
        cout<<cnt<<" ";
    }
    int cnt=0;
    for(int i=0;i<n;i++){
        if(same(n-1,i)&&same2(n-1,i))cnt++;
    }
    cout<<cnt<<endl;
    return 0;
}


Compiler output:
a.cc:62:5: error: redefinition of 'long long int urank [200000]'
   62 | int urank[200000];//深さ
      |     ^~~~~
a.cc:22:5: note: 'long long int urank [200000]' previously declared here
   22 | int urank[200000];//深さ
      |     ^~~~~
a.cc: In function 'void init2(long long int)':
a.cc:67:9: error: 'urank2' was not declared in this scope; did you mean 'urank'?
   67 |         urank2[i]=0;
      |         ^~~~~~
      |         urank
a.cc: In function 'void unite2(long long int, long long int)':
a.cc:87:8: error: 'urank2' was not declared in this scope; did you mean 'urank'?
   87 |     if(urank2[x]<urank2[y]){
      |        ^~~~~~
      |        urank