Help with program

Hey guys,
I'm new to programming and I'm not sure why this program won't work. As soon as I enter the value of a on the console the rest of the program just won't run. I'm sure I'm just being stupid. Any help would be appreciated. Thanks.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
    
float integral(int n, int a);

int main(int argc, char* argv[])
{
    int n, a;
    
    printf("Enter your integer value of a: ");
    scanf("%i", &a);
    
    
    for (n = 1; n <= 10; n++)
    {    
        printf("%i        %g\n", n, integral(n, a));
    }
    return 0;
}    

float integral(int n, int a)
{    
    int N = 10000;
    float x, y, strip, sum;
    

        
    for(x = 0; x < 1; x=x+(1/N))
    {
        y = (pow(x,n))/(x+a);
        strip = y/(N);
        sum += strip;
    }
    
    return(sum);
}

Code:

float integral(int n, int a)
{   
    int N = 10000;
    float x, y, strip, sum;
     
 
         
    for(x = 0; x < 1; x=x+(1/N))
    {
        y = (pow(x,n))/(x+a);
        strip = y/(N);
        sum += strip;
    }
     
    return(sum);
}

A couple of points.
1. Initialise sum to 0
2. Make N a float, otherwise 1/N is done in integer arithmetic, and the result is 0 (your loop never exits).

Thank you so much, I knew it would be something stupid haha.