January 2022 enrollments are closed and the course commences on 8th of January, 2022. For future cohorts

HAMSTER1 Solution

/*
* HAMSTER1.cpp
*
*  Created on: Jun 9, 2014
*      Author: Arpit Bhayani
*/

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <vector>

using namespace std;

#define DEBUG 0
#define gc getchar
#define ll long long

void scanint(ll int &x) {
register ll int c = gc();
x = 0;
for (; (c < 48 || c > 57); c = gc())
;
for (; c > 47 && c < 58; c = gc()) {
x = (x << 1) + (x << 3) + c - 48;
}
}

int i = 0;
char ch;
while ((ch = getchar()) != '\n') {
str[i++] = ch;
}
str[i] = '\0';
return i;
}

int main(int argc, char * argv[]) {

int T, v, k1, k2;
double theta, points, pi = 3.14159265;
cin >> T;
for (int i = 0; i < T; ++i) {
cin >> v >> k1 >> k2;
if (k2 == 0) {
theta = pi / 4.0;
} else if (k1 == 0) {
theta = pi / 2.0;
} else {
theta = atan(-(double) 4.0 * k1 / (double) k2) / 2;
if (theta < 0)
theta += pi / 2.0;
}

points = ((double) v * v) / 10.0
* (k1 * sin(2.0 * theta) + k2 * sin(theta) * sin(theta) / 2.0);
printf("%.3lf %.3lf\n", theta, points);
//cout << points << endl;
}
return 0;
}