duq

du2/program.c

@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#define LINE_SIZE 100
+
+int read_double(double *num){
+    char line[LINE_SIZE];
+    if(!fgets(line, LINE_SIZE, stdin)){
+        return 0;
+    }
+
+    char *endptr;
+    *num = strtod(line, &endptr);
+    if(endptr == line || (*endptr != '\0' && *endptr != '\n')){
+        return 0;
+    }
+    return 1;
+}
+
+int main(){
+    double x, coef, result = 0.0;
+    int coef_index = 0;
+
+    if(!read_double(&x)){
+        printf("Chyba: Nepodarilo sa nacitat hodnotu x.\n");
+        return 1;
+    }
+
+    while(read_double(&coef)){
+        if(coef_index == 0){
+            result = coef;
+        }else{
+            result = result * x + coef;
+        }
+        coef_index++;
+    }
+
+    if(coef_index == 0){
+        printf("Chyba: Nepodarilo sa nacitat ziadne koeficienty.\n");
+        return 1;
+    }
+
+    printf("Vysledok je: %.2f\n", round(result * 100) / 100);
+    return 0;
+}