Please write the code in c++ in a readable way

no need to write a big program only focus on the function

You are going to implement the cubic smoothstep without clamping of input. Answer: (penalty regime: 0 %) Reset answer float y; 1. struct vec2 { 2 float x; 3 4 }; 5 6 // cubic smoothstep 7. float sstep3(float t) { 8 9 // Your code should be implemented here. 10 11 } 12 You are going to implement the cubic smoothstep without clamping of input. Answer: (penalty regime: 0 %) Reset answer float y; 1. struct vec2 { 2 float x; 3 4 }; 5 6 // cubic smoothstep 7. float sstep3(float t) { 8 9 // Your code should be implemented here. 10 11 } 12