C Harmonic & Fibo for Sweden Nasir

#include <stdio.h>
double harmonic(int n)
{
    double i, s = 0.0;
    for (i = 1; i <= n; i++){
        s = s + 1/i;
    }
    return s;
}

int harmonic_exceed(float n)
{
    int i = 1;
    float sum;
    sum = harmonic(1);
    while(sum <= n){
        i++;
        sum = harmonic(i);
        //sum = (int)sum;
    }
    printf("\n%d terms needed to reach %.2f",i, n);
    return 0;
}

int fibonacci()
{
    int i, n, f1 = 0, f2 = 1, temp;
    printf("Enter the value of n for nth fibonacci series: ");
    scanf("%d", &n);
    printf("Fibonacci Series: ");
    for (i = 1; i <= n; ++i)
    {
        printf("%d, ", f1);
        temp = f1 + f2;
        f1 = f2;
        f2 = temp;
    }
    return 0;
}
int main()
{
    int n, i;
    float x;
    printf("Give an integer: ");
    scanf("%d", &n);
    for(i = 1; i <= n; i++)
    {
        printf("%d  %f\n",i, harmonic(i));
    }
    fibonacci();
    while(1){
        printf("\nEnter the value of x terms: ");
        scanf("%f", &x);
        harmonic_exceed(x);
    }
    return 0;
}