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#include <stdio.h>
#include <math.h>
 
 
int main()
{
    double v, a;
	printf("enter speed: \n");
    scanf("%lf", &v);
    printf("enter angle: \n");
    scanf("%lf", &a);
 
    printf("height is: %f  \n", hfunc(v,a));
    printf("length is: %f \n", dfunc(v,a));
 
    return 0;
}
 
double hfunc(double v, double a) {
   return ((pow(v,2))-pow(sin(a), 2))/(2*9.81);
}
 
double dfunc(double v, double a) {
    return ((pow(v,2)-(sin(2*a)))/9.81);
}

Main.java:1: error: illegal character: '#'
#include <stdio.h>
^
Main.java:1: error: class, interface, or enum expected
#include <stdio.h>
         ^
Main.java:2: error: illegal character: '#'
#include <math.h>
^
Main.java:8: error: class, interface, or enum expected
	printf("enter speed: \n");
	^
Main.java:9: error: class, interface, or enum expected
    scanf("%lf", &v);
    ^
Main.java:10: error: class, interface, or enum expected
    printf("enter angle: \n");
    ^
Main.java:11: error: class, interface, or enum expected
    scanf("%lf", &a);
    ^
Main.java:13: error: class, interface, or enum expected
    printf("height is: %f  \n", hfunc(v,a));
    ^
Main.java:14: error: class, interface, or enum expected
    printf("length is: %f \n", dfunc(v,a));
    ^
Main.java:16: error: class, interface, or enum expected
    return 0;
    ^
Main.java:17: error: class, interface, or enum expected
}
^
Main.java:21: error: class, interface, or enum expected
}
^
Main.java:25: error: class, interface, or enum expected
}
^
13 errors

Standard output is empty