c语言代码解决问题

解题思路:

注意事项:

参考代码:

#include<stdio.h>

#include<string.h>

int main()

{

    char str[501];

    gets(str);

    str[strlen(str)] = '\0';

    int i = 0, start = 0, sum, max_sum = 0, end, max_start, max_end, len = strlen(str);

    while (1)

    {

        sum = 0;

        while (str[i] != ' '&&str[i]!='.')

        {

            i++;

            sum++;

        }

        end = i - 1;

        if (max_sum < sum)

        {

            max_sum = sum;

            max_start = start;

            max_end = end;

        }

        start = i + 1;

        if (str[i] == '.')

            break;

        i++;

    }

    for (i = max_start; i <= max_end; i++)

        printf("%c", str[i]);

    return 0;

}