题解 | #计算某字母出现次数#

#include <iostream>
#include <string>

using namespace std;

int main()
{
    int result = 0;
    string str1; 
    char a;

    getline(cin, str1);
    cin >> a;

    for(int i = 0; i < str1.size(); i++)
    {
        if(str1[i] == a)
        {
            result ++;
        }else if(str1[i] == a + 32)
        {
            result ++;
        }
        else if(str1[i] == a - 32)
        {
            result ++;
        }
    }


    cout << result;
    return 0;

}