QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#78365#5090. 妙妙题Appleblue17Compile Error//C++14558b2023-02-18 09:02:512023-02-18 09:02:53

Judging History

This is the latest submission verdict.

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-02-18 09:02:53]
  • Judged
  • [2023-02-18 09:02:51]
  • Submitted

answer

#include"tmp.h"
#include<bits/stdc++.h>
using namespace std;
namespace my{
	const double PI=acos(-1),eps=1e-6;
	double sn[66],cs[66];
	int n;
}

void init (int N, bool Type, int p){
	using namespace my;
	n=N;
	for(int i=1;i<n;i++) cs[i]=cos(2*PI*i/n),sn[i]=sin(2*PI*i/n);
}

inline bool guess (unsigned long long A, int x){
	using namespace my;
	double sx=0,sy=0;
	bool tot=0;
	for(int i=1;i<=n-1;i++){
		if(A>>(i-1) & 1ull){
			tot^=1;
			sx+=cs[i],sy+=sn[i];
		}
	}
	if(fabs(sy)<eps) return (fabs(sx)>=eps);
	return tot^(sy>0);
}

详细

implementer.cpp: In function ‘int _JFIBEIIYTAFEUXOULOWO_::main()’:
implementer.cpp:31:22: warning: structured bindings only available with ‘-std=c++17’ or ‘-std=gnu++17’
   31 |                 auto [A,x,y,z]=V[i];
      |                      ^
implementer.cpp:36:18: warning: structured bindings only available with ‘-std=c++17’ or ‘-std=gnu++17’
   36 |         for(auto [A,x,y]:U)
      |                  ^
implementer.cpp:39:22: warning: structured bindings only available with ‘-std=c++17’ or ‘-std=gnu++17’
   39 |                 auto [A,x,y,z]=V[i];
      |                      ^
implementer.cpp:18:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   18 |         scanf("%d%d%d%d",&N,&Type,&p,&T);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
implementer.cpp:23:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   23 |                 scanf("%llu",&x);
      |                 ~~~~~^~~~~~~~~~~
/usr/bin/ld: /tmp/cctopwta.o: in function `_JFIBEIIYTAFEUXOULOWO_::main()':
implementer.cpp:(.text.startup+0x460): undefined reference to `guess(unsigned long long, int)'
collect2: error: ld returned 1 exit status