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 <iostream>
#include <string>
using namespace std;
int main() {
string a;
char b, c = 0;
getline(cin, a);
cin>>b;
if(b>='a'&&b<='z'||b>='A'&&b<='Z')
c = b>='a'?b-32:b+32;
int ans=0;
for(int i=0; i<a.size(); i++){
if(a[i]==b||a[i]==c)
ans+=1;
}
cout<<ans;
}
