快读求hack

qwq 谢谢各位大佬

typedef long long ll;
inline ll read(){
    ll sgn=0,x=0;
    char c=getchar();
    while(!isdigit(c)) sgn=c=='-',c=getchar();
    while(isdigit(c)) x=x*10+c-'0',c=getchar();
    return sgn?-x:x;
}

使用快读后tle,改成cin就过了 题目链接