i have a problem, i need some explanation for how to fix it, can i get some help please ? full problem: https://drive.google.com/file/d/1yV5Es5CySy5u_mr1cEyoH6LdOLQjyP6E/view?usp=sharing collision problem: there are n particles numbered from 0 to n1 lined up from smallest to largest ID along the xaxis. the particles are all released simultaneously. once released, each particle travels indefinitely in a straight line along the positive xaxis at a speed. when two particles collide, the faster particle moves through the slower particles and they both continue moving without changing speed or direction. write a function that return the number of collision occurring with particle pos. collision has the following parameters: speed[speed[0] ... speed[n1]]: an array of speed[i] indication speed of particle i. pos: index of the particle for which to count collisions. constraints * 1 <= n <= 100000 * 1 <= speed[i] <= 1000000000 * 0 <= pos< n input: 8 6 1 6 3 4 6 8 2 output: 2 explanation: the particle at pos = 2 will collide with particle 0 and 1 as they pass it from behind. asked 16 Dec '18, 04:08
