Looping a function

Hello!
This is my first post and i’m new to coding.
I’m having trouble implimenting this feature.
in the course project “Harry Potter sorting hat quiz”. I have gotten it to work if you use it correctly.
but if you don’t, all it does is say “invalid input” and moves on.
How do i get it to repeat the question where the missinput occurred?

My code:

#include <iostream> using namespace std; int main(){ int gryffindor = 0, hufflepuff = 0, ravenclaw = 0, slytherin = 0; int answer1, answer2, answer3, answer4; cout << "=====================\n"; cout << "The Sorting Hat Quiz!\n"; cout << "=====================\n"; //Question 1 cout << "Question 1) When I'm dead, I want peaple to remember me as: \n\n"; cout << "1) The Good\n"; cout << "2) The Great\n"; cout << "3) The Wise\n"; cout << "4) The Bold\n"; cin >> answer1; if (answer1==1){ hufflepuff++; } else if(answer1==2){ slytherin++; } else if(answer1==3){ ravenclaw++; } else if(answer1==4){ gryffindor++; } else{ cout << "Invalid input\n"; } //Question 2 cout << "Question 2) Dawn or Dusk\n\n"; cout << "1) Dawn\n"; cout << "2) Dusk\n"; cin >> answer2; if (answer2==1){ hufflepuff++; ravenclaw++; } else if(answer2==2){ slytherin++; gryffindor++; } else{ cout << "Invalid input\n"; } //Question 3 cout << "Question 3) Which kind of instrument most pleases your ear?\n\n"; cout << "1) The Violin\n"; cout << "2) The Trumpet\n"; cout << "3) The Piano\n"; cout << "4) The Drum\n"; cin >> answer3; if (answer3==1){ slytherin++; } else if(answer3==2){ hufflepuff++; } else if(answer3==3){ ravenclaw++; } else if(answer3==4){ gryffindor++; } else{ cout << "Invalid input\n"; } //Question 4 cout << "Question 4) Which road tempts you the most?\n\n"; cout << "1) The wide, sunny grassy lane\n"; cout << "2) The narrow, dark, lantern-lit alley\n"; cout << "3) The twisting, leaf-strewn path thorugh woods\n"; cout << "4) The cobbled street lined (ancient buildings)\n"; cin >> answer4; if (answer4==1){ hufflepuff++; } else if(answer4==2){ slytherin++; } else if(answer4==3){ gryffindor++; } else if(answer4==4){ ravenclaw++; } else{ cout << "Invalid input\n"; } cout << "\nCongrats on being sorted into... "; string house; int max = 0; if(gryffindor > max){ max=gryffindor; house = "Gryffindor"; } if(hufflepuff > max){ max = hufflepuff; house = "Hufflepuff"; } if(ravenclaw > max){ max = ravenclaw; house = "Ravenclaw"; } if(slytherin > max){ max = slytherin; house = "Slytherin"; } cout << house << "!\n\n"; }