题解 | #字符串最后一个单词的长度#

#include <stdio.h>
int last_length=0;
int length=0;
int i,j = 0;

int main()
{
    char input_words[5000];
    gets(input_words);
    for(i = 0; input_words[i] != NULL; i++)
    {
        length++;        
    }
    for(j = length; (input_words[j] != ' ')&&(last_length != length); j--)
    {
        last_length++;
    }
    if(last_length == length)
    {
        printf("%d",last_length);
    }
    else
    {
        printf("%d",last_length-1);
    }
    return 0;
}