What is wrong with the code? Pleeeaase

Question

So i don't really know if the code is wrong or my codeblock. When i'm inputing numbers in the array i can input less than 31 numbers. Although the asnwer which it gives me is right.

#include <iostream>
using namespace std;
int main (){
double arr[31];
int k;
int br=0;
for (int i; i<31; i++){
cin>>arr[i];
}
cout<<"input k"<<endl;
cin>>k;
for (int x; x<31;x++){
if (arr[x]==k) br++;

}
cout<<br;
return 0;
}

Answer 1

Your code should work if you write int i = 0 in the first loop condition and int x = 0 in the second.

Answer 2

Thank you so much! I told it's going to be a dumb mistake such at is. I'm new to this stuff.

Answer 3

Деян Милчев

Your welcome.
Maybe this article is helpful for you: https://www.learncpp.com/cpp-tutorial/uninitialized-variables-and-undefined-behavior/