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View Compilation Error

0_0_28440062_31272\Main.java:1: 错误: 非法字符: '#'
#include<cstdio>
^
0_0_28440062_31272\Main.java:1: 错误: 需要class, interface或enum
#include<cstdio>
        ^
0_0_28440062_31272\Main.java:2: 错误: 非法字符: '#'
#include<cmath>
^
0_0_28440062_31272\Main.java:4: 错误: 需要class, interface或enum
const double eps=1e-9;
^
0_0_28440062_31272\Main.java:5: 错误: 需要class, interface或enum
double f(double x,double y,double v){
^
0_0_28440062_31272\Main.java:7: 错误: 需要class, interface或enum
	double delta=v*v*v*v-2*g*v*v*y-g*g*x*x;
	^
0_0_28440062_31272\Main.java:8: 错误: 需要class, interface或enum
	if(delta+eps<0)
	^
0_0_28440062_31272\Main.java:10: 错误: 需要class, interface或enum
	double x1=atan((v*v-sqrt(delta))/g/x),x2=atan((v*v+sqrt(delta))/g/x);
	^
0_0_28440062_31272\Main.java:11: 错误: 需要class, interface或enum
	static const double pi=3.141592653589793238;
	       ^
0_0_28440062_31272\Main.java:12: 错误: 需要class, interface或enum
	if(x1<0){
	^
0_0_28440062_31272\Main.java:15: 错误: 需要class, interface或enum
		return x2;
		^
0_0_28440062_31272\Main.java:16: 错误: 需要class, interface或enum
	}
	^
0_0_28440062_31272\Main.java:19: 错误: 需要class, interface或enum
	return x1;
	^
0_0_28440062_31272\Main.java:20: 错误: 需要class, interface或enum
}
^
0_0_28440062_31272\Main.java:23: 错误: 需要class, interface或enum
	scanf("%d",&t);
	^
0_0_28440062_31272\Main.java:24: 错误: 需要class, interface或enum
	for(int i=0;i<t;i++){
	^
0_0_28440062_31272\Main.java:24: 错误: 需要class, interface或enum
	for(int i=0;i<t;i++){
	            ^
0_0_28440062_31272\Main.java:24: 错误: 需要class, interface或enum
	for(int i=0;i<t;i++){
	                ^
0_0_28440062_31272\Main.java:26: 错误: 需要class, interface或enum
		scanf("%lf%lf%lf",&x,&y,&v);
		^
0_0_28440062_31272\Main.java:27: 错误: 需要class, interface或enum
		double ans=f(x,y,v);
		^
0_0_28440062_31272\Main.java:28: 错误: 需要class, interface或enum
		if(ans+eps<0)
		^
0_0_28440062_31272\Main.java:30: 错误: 需要class, interface或enum
		else
		^
0_0_28440062_31272\Main.java:32: 错误: 需要class, interface或enum
	}
	^
0_0_28440062_31272\Main.java:34: 错误: 需要class, interface或enum
}
^
24 个错误


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