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>
#include <unordered_map>
using namespace std;
int main(int, char **)
{
unordered_map<char, int> map;
string input;//带空格的输入字符串
getline(cin,input);//getline可以带空格
char target;
cin >> target;
for (auto i : input) {
++map[tolower(i)];
}
cout << map[tolower(target)] << endl;
}
