Isort, insertion sort

#include "stdio.h"

void isort(float arr[], int n);
int fm(float arr[], int b, int n);

int main(void)
{
float arr1[5] = {4.3, 6.7, 2.8, 8.9, 1.0};
float arr2[5] = {4.3, 6.7, 2.8, 8.9, 1.0};
int i = 0;

isort(arr2, 5);

printf("\nBefore\tAfter\n--------------\n");

for(i = 0; i < 5; i++)
printf("%.2f\t%.2f\n", arr1[i], arr2[i]);

return 0;
}

int fm(float arr[], int b, int n) {
int f = b;
int c;

for(c = b + 1; c < n; c++)
if(arr[c] < arr[f])
f = c;

return f;
}

void isort(float arr[], int n)
{
int s, w;
float sm;

for(s = 0; s < n - 1; s++)
{
w = fm(arr, s, n);
sm = arr[w];
arr[w] = arr[s];
arr[s] = sm;
}
}

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