Delete recursive code

recursive code

-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
-
-#define MAX_LAYERS 15
-
-double calculateA(int L, double X);
-void calculateArrayRecursive(double X, double* A, double e, int L, int* numLayers);
-void getInput(double* X, double* e);
-void saveToFile(double* A, int numLayers);
-
-int main() {
-    double X, e, A[MAX_LAYERS];
-    int numLayers = 0;
-    
-    getInput(&X, &e);
-    calculateArrayRecursive(X, A, e, 1, &numLayers);  
-    saveToFile(A, numLayers);
-    
-    return 0;
-}
-
-void getInput(double* X, double* e) {
-    printf("Enter the value of X (|X| < 1): ");
-    scanf("%lf", X);
-    
-    printf("Enter the value of e (0 < e < 1): ");
-    scanf("%lf", e);
-    
-    if (fabs(*X) >= 1 || *e <= 0 || *e >= 1) {
-        printf("Invalid input! Ensure |X| < 1 and 0 < e < 1.\n");
-        exit(1);
-    }
-}
-
-double calculateA(int L, double X) {
-    double term = 1.0;
-    for (int i = 1; i < L; i++) {
-        term *= (2 * i - 1) / (double)(2 * i);
-    }
-    double A_L = pow(X, 2 * L - 1) * term / (2 * L - 1);
-    A_L *= pow(-1, L + 1);
-    return A_L;
-}
-
-void calculateArrayRecursive(double X, double* A, double e, int L, int* numLayers) {
-    if (L > MAX_LAYERS) return;  
-    A[L - 1] = calculateA(L, X);  
-    if (L > 1 && fabs(A[L - 1] - A[L - 2]) > e) { 
-        printf("Stopping at L = %d because |A_L - A_{L-1}| > e\n", L);
-        return;  
-    }
-
-    (*numLayers)++; 
-    calculateArrayRecursive(X, A, e, L + 1, numLayers); 
-}
-
-void saveToFile(double* A, int numLayers) {
-    FILE *f = fopen("F.txt", "w");
-    if (f == NULL) {
-        printf("Error opening file.\n");
-        exit(1);
-    }
-    
-    fprintf(f, "Number of elements: %d\n", numLayers);
-    for (int i = 0; i < numLayers; i++) {
-        fprintf(f, "A%d = %.10lf\n", i + 1, A[i]);
-    }
-    fclose(f);
-    printf("Results saved to F.txt\n");
-}