标签:count words and letters-计算用户输入一行文本中的单词数和每个字母出现次数
Count words and letters-计算用户输入一行文本中的单词数和每个字母出现次数
//Count words and letters #include<iostream> #include<cstring> #include<cstdlib> #include<cctype> using namespace std; int main() { int words_count = 1; int char_count[26] = {0}; char ch; cout<<"Input a line \n"; while((ch = cin.get()) != ‘\n‘) { if(ch == ‘ ‘) words_count++; if(isalpha(ch)) { ch = tolower(ch); char_count[static_cast<int>(ch) - 97]++; } } //for(int i = 0;i<26;i++) //cout<<char_count[i]<<" "; cout<<words_count<<" words\n"; for(int i = 0;i < 26;i++) if(char_count[i] != 0) { cout<<char_count[i]<<"\t"<<static_cast<char>(97 + i)<<endl; } return 0; }
结果:
Input a line I say Hi. 3 words 1 a 1 h 2 i 1 s 1 y
Input a line aaa bb cccc dddd. 4 words 3 a 2 b 4 c 4 d
Count words and letters-计算用户输入一行文本中的单词数和每个字母出现次数
标签:count words and letters-计算用户输入一行文本中的单词数和每个字母出现次数
原文地址:http://9320314.blog.51cto.com/9310314/1550652