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esraa_syam

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Apr 15th, 2023 (edited)
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  1. #include<bits/stdc++.h>
  2. #define nl "\n"
  3. #define fi first
  4. #define se second
  5. #define pi 3.14159
  6. #define ll long long
  7. #define odd(a)  (a&1)
  8. #define even(a)  !(a&1)
  9. #define Mod 1'000'000'007
  10. #define INF 2'000'000'000
  11. #define sz(x) int(x.size())
  12. #define charToInt(s) (s - '0')
  13. #define ull unsigned long long
  14. #define number_line iota(all(vec) , 1)
  15. #define all(s) s.begin(), s.end()
  16. #define rall(v) v.rbegin() , v.rend()
  17. #define fixed(n) fixed << setprecision(n)
  18. #define Num_of_Digits(n) ((int)log10(n) + 1)
  19. #define to_decimal(bin) stoll(bin, nullptr, 2)
  20. #define Ceil(n, m) (((n) / (m)) + ((n) % (m) ? 1 : 0))
  21. #define Floor(n, m) (((n) / (m)) - ((n) % (m) ? 0 : 1))
  22. #define Upper(s) transform(all(s), s.begin(), ::toupper);
  23. #define Lower(s) transform(all(s), s.begin(), ::tolower);
  24. #define cout_map(mp) for(auto& [f, s] : mp) cout << f << "  " << s << "\n";
  25. //  ----- bits-------
  26. #define pcnt(n) __builtin_popcount(n)  
  27. #define pcntll(n) __builtin_popcountll(n)
  28. #define clz(n) __builtin_clz(n)    // <---100
  29. #define clzll(n) __builtin_clzll(n)
  30. #define ctz(n) __builtin_ctz(n)  // 0001---->
  31. #define ctzll(n) __builtin_ctzll(n)
  32.  
  33. using namespace std;
  34.  
  35. template < typename T = int > istream& operator >> (istream &in, vector < T > & v){
  36.     for(auto & x : v) in >> x;
  37.     return in;
  38. }
  39.  
  40. template < typename T = int > ostream& operator << (ostream &out, const vector < T > & v){
  41.     for(const T & x : v) out << x << " ";
  42.     return out;
  43. }
  44.  
  45. void esraa()
  46. {
  47.     //freopen("shuffle.in", "r", stdin), freopen("shuffle.out", "w", stdout);
  48.     ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
  49. #ifndef ONLINE_JUDGE
  50.     freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  51. #endif
  52. }
  53. struct DSU{
  54.     vector < int > per1 , per2 , sz1 , sz2 , rank1 , rank2;
  55.     explicit DSU(int n){
  56.         per1.resize(n + 1);
  57.         per2.resize(n + 1);
  58.         sz1.resize(n + 1);
  59.         sz2.resize(n + 1);
  60.         rank1.resize(n + 1);
  61.         rank2.resize(n + 1);
  62.         iota(all(per1) , 0);
  63.         iota(all(per2) , 0);
  64.         fill(all(sz1) , 1);
  65.         fill(all(sz2) , 1);
  66.     }
  67.     int get1(int x){
  68.         return (per1[x] == x ? x : per1[x] = get1(per1[x]));
  69.     }
  70.     int get2(int x){
  71.         return (per2[x] == x ? x : per2[x] = get2(per2[x]));
  72.     }
  73.     void join1(int x , int y){
  74.         x = get1(x) , y = get1(y);
  75.         if(x == y) return;
  76.         if(rank1[x] < rank1[y]) swap(x , y);
  77.         per1[y] = x , sz1[x] += sz1[y];
  78.         if(rank1[x] == rank1[y]) rank1[x]++;
  79.     }
  80.     void join2(int x , int y){
  81.         x = get2(x) , y = get2(y);
  82.         if(x == y) return;
  83.         if(rank2[x] < rank2[y]) swap(x , y);
  84.         per2[y] = x , sz2[x] += sz2[y];
  85.         if(rank2[x] == rank2[y]) rank2[x]++;
  86.     }
  87.     bool same1(int x , int y){
  88.         return get1(x) == get1(y);
  89.     }
  90.     bool same2(int x , int y){
  91.         return get2(x) == get2(y);
  92.     }
  93. };
  94. void solve(){
  95.     int n , m , k;
  96.     cin >> n >> m >> k;
  97.     DSU dsu(n);
  98.     for(int i = 0; i < m; i++){
  99.         int u , v;
  100.         cin >> u >> v;
  101.         dsu.join1(u , v);
  102.     }
  103.     for(int i = 0; i < k; i++){
  104.         int u , v;
  105.         cin >> u >> v;
  106.         dsu.join2(u , v);
  107.     }
  108.     map < pair < int , int > , int > mp;
  109.     for(int i = 1; i <= n; i++){
  110.         int x = dsu.get1(i) , y = dsu.get2(i);
  111.         mp[{x , y}]++;
  112.     }
  113.     for(int i = 1; i <= n; i++){
  114.         int x = dsu.get1(i) , y = dsu.get2(i);
  115.         cout << mp[{x , y}] << " ";
  116.     }
  117.  
  118. }
  119. int main()
  120. {
  121.     esraa();
  122.     int t = 1;
  123.     //cin >> t;
  124.     //cin.ignore();
  125.     while(t--)
  126.       solve();
  127.     return 0;
  128. }
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