题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
#include<bits/stdc++.h>
using namespace std;
int main() {
string s;
char a;
int num = 0;
getline(cin, s);
a = getchar();
a = tolower(a);
for (int i = 0; i < s.length(); i++) {
s[i]=tolower(s[i]);
if (s[i] == a) {
num++;
}
}
cout << num << endl;
}
// 64 位输出请用 printf("%lld")
