题解 | #计算某字符出现次数#

#include <iostream>
#include <string>
using namespace std;

int main() {
    string inp;
    getline(cin, inp);
    char l;
    cin >> l;
    int n = inp.size();
    int count = 0;
    for (int i = 0; i < n; i++) {
        if (tolower(inp[i]) == tolower(l))
        count++;
    }
    cout << count;
}
// 64 位输出请用 printf("%lld")