답안 #3447

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
3447	2013-08-31T05:51:43 Z	pichulia	Jogging (kriii1_J)	C++	컴파일 오류	0 ms	0 KB

J

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<string.h>
#include<algorithm>

using namespace::std;

#define M 100000005
double M_PI;

struct P{
	double x, y;

	double radis;
}a[100005];
int n, m;
double b[100005];
bool compare(P p, P q)
{
	return p.radis > q.radis;
}
void input()
{
	M_PI = acos(0.0)*2;
	int i, j;
	scanf("%d %d",&n,&m);
	for(i=0; i<n; i++)
	{
		scanf("%lf %lf",&a[i].x,&a[i].y);
		a[i].radis = atan2(a[i].y, a[i].x + M);
	}
	for(i=0; i<m; i++)
		scanf("%lf",&b[i]);
	sort(a,a+n,compare);
}

void process()
{
	int i, j=0;
	double k;
	for(i=0; i<m; i++)
	{
		k=0;
		for(; j<n; j++)
		{
			k = atan2(a[j].y,a[j].x - b[i]);
			if(k<M_PI/2)
				break;
		}
		printf("%.7lf\n",k);
	}
}

void output()
{
}

int main()
{
	input();
	process();
	output();
	return 0;
}

Compilation message

J.cpp:11:8: error: expected unqualified-id before numeric constant
J.cpp: In function 'void input()':
J.cpp:26:19: error: lvalue required as left operand of assignment
J.cpp:27:9: warning: unused variable 'j' [-Wunused-variable]
J.cpp:28:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
J.cpp:31:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
J.cpp:35:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]