Сделал 45 Задание

45Ex/main.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include "tools.h"
+#include "solve_polynomial.h"
+
+/*
+Problem 45
+Coordinate X: 2
+Solution: 129
+Derivative: 222
+*/
+
+int main(void) {
+    double derivative, polynomial, x;
+    FILE * file = getFile();
+    if (file == NULL) return 1;
+
+    printf("Enter x coordinat: ");
+    scanf("%lf", &x);
+
+    if (solvePolynomial(file, x, &derivative, &polynomial)) return 1;
+    printf("Solve of the polynomial is %lf\nSolve of its derivative is %lf\n", polynomial, derivative);
+    return 0;
+}