题解 | #计算某字符出现次数#

#include <iostream>
using namespace std;

int main() {
    string s;
    getline(cin, s);
    char ch = cin.get();
    int cnt = 0;
    for (char& c : s) {
        if (toupper(c) == toupper(ch)) ++cnt;
    }
    cout << cnt;
}
// 64 位输出请用 printf("%lld")