program_4_8.cpp

来自「清华关于C++ 的程序讲义 值得一看 关于算法」· C++ 代码 · 共 29 行

// Program 4.8: Computes number of words and articles
#include <iostream>
#include <string>
using namespace std;
int main() {
    // initialize counters ofr test analysis
    int NumberOfWords = 0;
    int NumberOfArticles = 0;
    // begin string processing
    string s;
    cout << "Enter text for analysis" << endl << endl;
    while (cin >> s) {
        // found another word
        ++NumberOfWords;
        // test if the word an article
        if ((s == "the") || (s == "The") || (s == "an")
        || (s == "An") || (s == "a") || (s == "A")) {
            // the word an article
            ++NumberOfArticles;
        }
    }
    // display test statistics
    cout << endl;
    cout << "Text contains " << NumberOfWords
    << " Words of which " << NumberOfArticles
    << " are articles" << endl;
    return 0;
}