摘要: int read(){ int x=0,f=1; char c=getchar(); while(c<'0'||c>'9'){ if(c=='-') f=-1; c=getchar(); } while(c>='0'&&c<='9'){ x=x*10+c-'0'; c=getchar(); } re 阅读全文
posted @ 2021-10-02 16:40 death_gun 阅读(118) 评论(0) 推荐(0)