UVa272 TEX Quotes

 1 #include<cstdio>
 2 int main()
 3 {
 4     char ch;
 5     int flag = 1; //标记奇偶问题，刚开始为奇
 6     //读取到文件末尾
 7     while(~scanf("%c", &ch))
 8     {
 9         if(ch == ‘"‘)
10         {
11             //注意这里是%s,而不是%c
12             printf("%s", flag ? "``" : "‘‘");
13             flag = !flag; //奇偶切换
14         }
15         else printf("%c", ch);
16     }
17 }