提交记录 11414 - Judge Duck Online

用户	题目	状态	得分	用时	内存	语言	代码长度
I_am_Chinese_qwq	1000i. 【传统题】 A+B Problem	Compile Error	0	0 ns	0 KB	C++	608 B

提交时间	评测时间
2020-01-09 19:06:36	2020-08-01 02:43:07

代码

#include <stdio.h>
struct ios {
    inline char gc(){
        static const int IN_LEN=1<<18|1;
        static char buf[IN_LEN],*s,*t;
        return (s==t)&&(t=(s=buf)+fread(buf,1,IN_LEN,stdin)),s==t?-1:*s++;
    }

    inline ios & operator >> (int &x){
        static char ch,sgn; ch = gc(), sgn = 0;
        for(;!isdigit(ch);ch=gc()){if(ch==-1)return *this;sgn|=ch=='-';}
        for(x=0;isdigit(ch);ch=gc())x=x*10+(ch^'0');
        sgn&&(x=-x); return *this;
    }
} io;
int main(){
    register int n,a,b;
    io>>n;
    while(n--){
        io>>a>>b;
        printf("%d\n",a+b);    
    }
	return 0;
}

评测结果

Compilation

N/A

Compile Error

Score: N/A

显示更多

jp_data/tasks/aa90710ed35d11ea899e00163e04388b/contestant.cpp: In member function ‘ios& ios::operator>>(int&)’:
jp_data/tasks/aa90710ed35d11ea899e00163e04388b/contestant.cpp:11:15: error: ‘isdigit’ was not declared in this scope
   11 |         for(;!isdigit(ch);ch=gc()){if(ch==-1)return *this;sgn|=ch=='-';}
      |               ^~~~~~~
jp_data/tasks/aa90710ed35d11ea899e00163e04388b/contestant.cpp:12:17: error: ‘isdigit’ was not declared in this scope
   12 |         for(x=0;isdigit(ch);ch=gc())x=x*10+(ch^'0');
      |                 ^~~~~~~