Bình luận

• 
  

  -1

  

  VDev  đã bình luận 5:18:34 sa, 20/01/2025

  FULL AC

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  #include <bits/stdc++.h>
  #include <iomanip>
  #include <cmath>
  #include <climits>
  #define ll long long
  using namespace std;
  ll a[1000011];
  ll cnt = 0, s = 0, cnt2[1000011], mark[1000011];
  
  int main(){
      ll n;
      cin >> n;
      for(ll i = 0; i < n; i++){
          cin >> a[i];
      }
      for(ll i = 0; i < n; i++){
              cnt2[a[i]]++;
      }
      for(ll i = 0; i < n; i++){
          if(cnt2[a[i]] != 0){
              cout << a[i] << " " << cnt2[a[i]] << endl;
              cnt2[a[i]] = 0;
          }
      }
      return 0;
  }
  

• 
  

  -2

  

  2vhoc7  đã bình luận 4:40:24 ch, 04/04/2024

  from math import * if name == 'main': n = int(input()) a = list(map(int, input().split()))

  Copy

  d ={}
  
  for x in a:
      if x in d:
          d[x]+=1
      else:
          d[x] = 1
  
  for key, value in d.items():
      print(key, value)