题解 | #单词倒排#

#include <stdio.h>
#include <string.h>

int main() {
    
    char arr[10000][21] = {0};
    char str[10000];//注意这次字符串长度是一万
    fgets(str, 10000, stdin);
    int len = strlen(str);
    int a = 0, b = 0;

    for (int i = 0; i< len; i++) {
        if ((str[i] >= 'A' && str[i] <= 'Z') || (str[i] >= 'a' && str[i] <= 'z') ) {
            arr[a][b] = str[i];
            b++;
        }
        else {
        a++;
        b=0;
        }
    
    }
   
    for (int i = a-1; i>=0 ; i--) {
        printf("%s ", arr[i]);
    }
        
  
    return 0;
}