0_0_20344690_29890\Main.java:1: 错误: 非法字符: '#'
#include<iostream>
^
0_0_20344690_29890\Main.java:1: 错误: 需要class, interface或enum
#include<iostream>
^
0_0_20344690_29890\Main.java:3: 错误: 需要class, interface或enum
int main()
^
0_0_20344690_29890\Main.java:6: 错误: 需要class, interface或enum
while(cin>>n)
^
0_0_20344690_29890\Main.java:9: 错误: 需要class, interface或enum
while(n--)
^
0_0_20344690_29890\Main.java:12: 错误: 需要class, interface或enum
double x1,y1,x2,y2,x3,y3;
^
0_0_20344690_29890\Main.java:13: 错误: 需要class, interface或enum
cin>>x1>>y1>>x2>>y2>>x3>>y3;
^
0_0_20344690_29890\Main.java:14: 错误: 需要class, interface或enum
x=(x1+x2+x3)/3.0;
^
0_0_20344690_29890\Main.java:15: 错误: 需要class, interface或enum
y=(y1+y2+y3)/3.0;
^
0_0_20344690_29890\Main.java:16: 错误: 需要class, interface或enum
printf("%.1lf %.1lf\n",x,y);
^
0_0_20344690_29890\Main.java:17: 错误: 需要class, interface或enum
}
^
0_0_20344690_29890\Main.java:20: 错误: 需要class, interface或enum
}
^
12 个错误
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