C++ Program to locate a no. in a list

//To locate a number in a list 
#include <iostream> 
using namespace std; 
int main() 
    int i,n;         
    double x;     
    cout<<"Enter the size of the list"<<endl; 
    cin>>n;                    //Input the size of the list 
    double a[n];                //declare an array of the size entered by the user 
    cout<<"Enter the elements of the list\n"; 
    for (i=0;i<n;i++)            //loop to input the elements of the list 
    cout<<"Which no. do you wish to find?\n";     
    cin>>x;                    //Input the no. to be searched 
    for(i=0;i<n;i++)            //loop to search the no. 
        if (a[i]==x)            //compare each element with the no. to be searched 
        cout<<"The no. is at "<<i+1<<"th position in the list.\n";//display the position 
        break;                            //break the loop 
        cout<<"Sorry, the no. can't be found\n"; 
    return 0;                //end program 

PhD researcher at Friedrich-Schiller University Jena, Germany. I'm a physicist specializing in computational material science. I write efficient codes for simulating light-matter interactions at atomic scales. I like to develop Physics, DFT and Machine Learning related apps and softwares from time to time. Can code in most of the popular languages. Like to share my knowledge in Physics and applications using this Blog and a YouTube channel.
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