Sorting a struct

[antirsi96]

I am trying to sort an array declared as a struct but it doesn't work. What am i doing wrong?

#include <iostream>
#include <fstream>
using namespace std;
ifstream f("date.in");
ofstream g("date.out");
int n;
struct film
{
    float a, b;
    int numar;
}v[100], aux;
int main()
{
    f>>n;
    for(int i=1;i<=n;i++)
    {
        f>>v[i].a>>v[i].b;
    }
    int ok=1;
    do{
        for(int i=1;i<=n;i++)
        {
            if(v[i].a>v[i+1].a)
            {
                aux=v[i];
                v[i]=v[i+1];
                v[i+1]=aux;
                ok=0;
            }
        }
    }while(ok==0);
    
    for(int i=1;i<=n;i++)
    {
        cout<<v[i].a<<" "<<v[i].b<<endl;
    }
    return 0;
}

[Null]

once ok is set to 0 it never becomes equal to 1. put int ok=1; inside the do-while loop.