题解 | #计算某字符出现次数#

#include <cstdio>
#include <iostream>


using namespace std;

int main() {
    string str;
     char ch;
    getline(cin,str);
    cin >> ch;
    int cnt = 0;
        for (auto c : str) {
            if (tolower(c) == tolower(ch)) {
                cnt++;
            }
        }
    cout << cnt;
}
// 64 位输出请用 printf("%lld")