0_0_31475344_25762\Main.java:1: 错误: 非法字符: '#'
#include<iostream>
^
0_0_31475344_25762\Main.java:1: 错误: 需要class, interface或enum
#include<iostream>
^
0_0_31475344_25762\Main.java:2: 错误: 非法字符: '#'
#include<cstdio>
^
0_0_31475344_25762\Main.java:3: 错误: 非法字符: '#'
#include<cmath>
^
0_0_31475344_25762\Main.java:4: 错误: 非法字符: '#'
#include<algorithm>
^
0_0_31475344_25762\Main.java:5: 错误: 非法字符: '#'
#include<vector>
^
0_0_31475344_25762\Main.java:7: 错误: 非法字符: '#'
#define EPS 1e-10
^
0_0_31475344_25762\Main.java:7: 错误: 需要class, interface或enum
#define EPS 1e-10
^
0_0_31475344_25762\Main.java:8: 错误: 非法字符: '#'
#define pi acos(-1)
^
0_0_31475344_25762\Main.java:10: 错误: 需要class, interface或enum
double ans;
^
0_0_31475344_25762\Main.java:11: 错误: 需要class, interface或enum
double add(double a,double b)
^
0_0_31475344_25762\Main.java:14: 错误: 需要class, interface或enum
else return a+b;
^
0_0_31475344_25762\Main.java:15: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:19: 错误: 需要class, interface或enum
P() {}
^
0_0_31475344_25762\Main.java:24: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:28: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:32: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:36: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:40: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:42: 错误: 需要class, interface或enum
bool cmp_x(const P& p,const P& q)
^
0_0_31475344_25762\Main.java:45: 错误: 需要class, interface或enum
else return p.y<q.y;
^
0_0_31475344_25762\Main.java:46: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:48: 错误: 需要class, interface或enum
vector<P> convex_hull()
^
0_0_31475344_25762\Main.java:51: 错误: 需要class, interface或enum
int k=0;
^
0_0_31475344_25762\Main.java:52: 错误: 需要class, interface或enum
vector<P> qs(n*2);
^
0_0_31475344_25762\Main.java:53: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:53: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:53: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:56: 错误: 需要class, interface或enum
qs[k++]=p[i];
^
0_0_31475344_25762\Main.java:57: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:58: 错误: 需要class, interface或enum
for(int i=n-2,t=k; i>=0; i--)
^
0_0_31475344_25762\Main.java:58: 错误: 需要class, interface或enum
for(int i=n-2,t=k; i>=0; i--)
^
0_0_31475344_25762\Main.java:61: 错误: 需要class, interface或enum
qs[k++]=p[i];
^
0_0_31475344_25762\Main.java:62: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:64: 错误: 需要class, interface或enum
return qs;
^
0_0_31475344_25762\Main.java:65: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:69: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:73: 错误: 需要class, interface或enum
int num=as.size();
^
0_0_31475344_25762\Main.java:74: 错误: 需要class, interface或enum
P base=as[0],tmp1,tmp2;
^
0_0_31475344_25762\Main.java:75: 错误: 需要class, interface或enum
for(int i=1;i+1<num;i++)
^
0_0_31475344_25762\Main.java:75: 错误: 需要class, interface或enum
for(int i=1;i+1<num;i++)
^
0_0_31475344_25762\Main.java:75: 错误: 需要class, interface或enum
for(int i=1;i+1<num;i++)
^
0_0_31475344_25762\Main.java:79: 错误: 需要class, interface或enum
tmp2=as[i+1]-base;
^
0_0_31475344_25762\Main.java:81: 错误: 需要class, interface或enum
double ss=fabs(tmp1.det(tmp2));
^
0_0_31475344_25762\Main.java:82: 错误: 需要class, interface或enum
ans+=((double)ss/2.0);
^
0_0_31475344_25762\Main.java:83: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:85: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:90: 错误: 需要class, interface或enum
scanf("%d",&T);
^
0_0_31475344_25762\Main.java:91: 错误: 需要class, interface或enum
while(T--)
^
0_0_31475344_25762\Main.java:94: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:94: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:94: 错误: 需要class, interface或enum
for(int i=0; i<n; i++)
^
0_0_31475344_25762\Main.java:97: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:99: 错误: 需要class, interface或enum
double ans=ans_S();
^
0_0_31475344_25762\Main.java:100: 错误: 需要class, interface或enum
printf("%.1lf\n",ans);
^
0_0_31475344_25762\Main.java:101: 错误: 需要class, interface或enum
}
^
0_0_31475344_25762\Main.java:103: 错误: 需要class, interface或enum
}
^
57 个错误
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