题解 | #字符串最后一个单词的长度#

#include <iostream>
#include <string>
using namespace std;
int main()
{
    int count_len, count_num;
    char input_string[500], selected_letter[500];
    count_len = 0;
    count_num = 0;
    cin .getline (input_string,500);
    cin >> selected_letter;
    cout << selected_letter[0]<< endl ;
    //cout << selected_letter << endl;
    while (input_string[count_len] !=  0)
    {
        if ((input_string[count_len] == selected_letter[0])||
            (input_string[count_len] == selected_letter[0]+32)|| 
            (input_string[count_len] == selected_letter[0] - 32))
        {
            count_num++;
        }
        count_len++;
    }
    cout << count_num; 

}