题解 | #单词识别#

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

int main() {
    char ch[1000][100];
    int n;                                          //单词个数
    for (int i = 0; i < 1000; i++) {
        cin >> ch[i];
        for (int j = 0; j < strlen(ch[i]); j++) {   //大写字母转小写
            ch[i][j] = tolower(ch[i][j]);
        }
        if (ch[i][strlen(ch[i]) - 1] == '.') {      //字符串以“.”结尾
            ch[i][strlen(ch[i]) - 1] = '\0';        //将末尾的“.”截断
            n = i + 1;
            break;
        }
    }
    //冒泡排序法将字符串排序
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (strcmp(ch[i], ch[j]) < 0) {
                char temp[100];
                strcpy(temp, ch[i]);
                strcpy(ch[i], ch[j]);
                strcpy(ch[j], temp);
            }
        }
    }
    for (int i = 0, count = 1; i < n; i++) {
        if (!strcmp(ch[i], ch[i + 1])) {
            count++;
        } else {
            cout << ch[i] << ":" << count << endl;
            count = 1;
        }
    }
}