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  VietAnh_CNTT2_K65  commented on Sept. 14, 2025, 11:30 a.m.

  siu ngắn

  include <bits/stdc++.h>

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

  string t;
  int count = 0;
  getline(cin,t);
  for(int i=1;i<t.size();i++){
      if(t[i]==t[0]) count++;
  }
  cout << count;

  }

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  toan_pk  commented on Oct. 4, 2021, 3:45 p.m. ← edit 3 →

  ngắn gọn cho ae

  #include <bits/stdc++.h>
  #include<string>
  using namespace std;
  
  int main(){
      string str;
      fflush(stdin);
      getline(cin, str);
      int n = str.length(), d=0;
      for(int i=0; i<n; i++){
          if(str[i+1] == str[0]){
               d++;
          }
  }
      cout<<d;
  }

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  ga123  commented on Oct. 3, 2021, 5:25 a.m.

  bài này dùng substr là ra

  #include"bits/stdc++.h"
  #include"string.h"
  using namespace std;
  int main()
  {
  string a,d;
  getline(cin,a);
  int c,i,de=0;
  while (a[c] != '\0')
      c++;
  string b=a.substr(0,1);
  for(i=1;i<c;i++)
  {
      d=a.substr(i,1);
      if(b==d)
      de++;
  }
  printf("%d",de);
  }