题解 | #统计字符串中各类型字符的个数#

#include <cctype>
#include <iostream>
#include <cstring>
#include<map>
using namespace std;

int main() {

    int letter = 0;
    int digit = 0;
    int space = 0;
    int other = 0;
    
    char buf[1024] = {0};
    cin.getline(buf, sizeof(buf));

    // write your code here......
    map<string,int> maps;

    for(int i = 0; buf[i] != '\0';i++){
        if(isalpha(buf[i])){maps["letter"]++;}
        else if(isdigit(buf[i])){maps["digit"]++;}
        else if(isspace(buf[i])){maps["space"]++;}
        else {
        maps["other"]++;
        }
    }

    cout << "letter:" << maps["letter"] << " digit:" << maps["digit"] << " space:" << maps["space"] << " other:" << maps["other"] << endl;

    return 0;
}