Tex Quotes, UVa 272

Problem Description

TeX中，左双引号是”““，右双引号是””“。输入一篇包含双引号的文章，你的任务就是把它转换成TeX的格式。

Sample Input

“To be or not to be,” quoth the Bard, “that is the question”. The programming contestant replied: “I must disagree. To C' or not toC’, that is The Question!”

Sample Output

To be or not to be,'' quoth the Bard,that is the question”. The programming contestant replied: `I must disagree. ToC’ or not to `C’, that is The Question!”

代码

#include<stdio.h>#include<string.h>int main(){    int flag = 1;//如果是1就左双引号，0是右双引号    int c;    while((c = getchar()) != EOF)    {        if(c == '"')        {            if(flag)//做双引号            {                printf("``");                flag = !flag;//更新为0，下次见到就是右双引号了            }            else            {                printf("''");                flag = !flag;            }        }        else printf("%c", c);    }    return 0;}