Goal: Learn to write for loops.

Assignment: In a new mobile game, players earn points by overcoming obstacles. Each level has an increasing number of obstacles, and the points earned for each obstacle in a level are equal to the square of the level number. The game designer needs to calculate the total points that can be earned from the first $20$ levels to adjust the game's difficulty.

Given int variables level and totalPoints, use a for loop to compute the total points a player can earn by completing all obstacles in the first $20$ levels. The points from each level are the square of the level number multiplied by the number of obstacles in that level $($assume each level has obstacles equal to the level number$).$ Store this cumulative point total in totalPoints.

For example, level $1$ has $1$ obstacle worth $1^2$ points, level $2$ has $2$ obstacles each worth $2^2$ points $($totaling $4*2=8$ points for level $2),$ and so on$.$ You must use level for your for loop.