题解 | #句子逆序#

#include<stdio.h>
#include<stdlib.h>

int main()
{
    char str[1001] = {0};
    char temp[1001] = {0};
    
    gets(str);
    
    int len = strlen(str);
    int k = 0;
    int j = 0;
    for(int i = len-1;i>=0;i--){
        k = i;
        if (str[i] == ' ') {
            while (i<len-1 && str[i+1] != ' ') {
                temp[j] = str[i+1];
                j++;
                i++;
            }
            temp[j] = ' ';
            j++;
        }
        if (i == 0) {
            while (str[i] != ' ') {
                temp[j] = str[i];
                j++;
                i++;
            }
        }
        i = k;
    }
    
    for(int i = 0;i<len;i++){
        printf("%c", temp[i]);
    }
    
    return 0;
}