题解 | #统计字符串中各类型字符的个数#
统计字符串中各类型字符的个数
https://www.nowcoder.com/practice/d5b44c494ed24d8ebb10607c469280e3
#include <iostream> #include <map> using namespace std; int main() { char str[100] = { 0 }; cin.getline(str, size(str)); map<string, int> maps; maps.insert(pair<string, int>("letter", 0)); maps.insert(pair<string, int>("digit", 0)); maps.insert(pair<string, int>("space", 0)); maps.insert(pair<string, int>("other", 0)); for(int i = 0; str[i] != '\0'; i++) { if(isalpha(str[i])) maps["letter"]++; else if(isdigit(str[i])) maps["digit"]++; else if(isspace(str[i])) maps["space"]++; else maps["other"]++; } cout << "letter:" << maps["letter"] <<" digit:" << maps["digit"] << " space:" << maps["space"] << " other:" << maps["other"]; }