题解 | #计算某字符出现次数#

#include <iostream>
#include<string>

using namespace std;

int main() 
{
    string str;
    char ch;
    int count = 0;

    getline(cin, str);
    
    cin >> ch;

    for (int i = 0;i < str.size();i++)
    {
        if (tolower(str[i]) == tolower(ch))
        {
            count++;
        }
    }

    cout << count << endl;
   
    return 0;
}