diff --git a/du1/program.c b/du1/program.c
new file mode 100644
index 0000000..a0fe93d
--- /dev/null
+++ b/du1/program.c
@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#define SIZE 100
+
+int nacitaj_riadok(double* cislo) {
+    char riadok[SIZE];
+    memset(riadok, 0, SIZE);
+
+    char* r = fgets(riadok, SIZE, stdin);
+    if (r == NULL) {
+        return 0;
+    }
+
+    riadok[strcspn(riadok, "\n")] = '\0';
+
+    if (strlen(riadok) == 0) {
+        return 0;
+    }
+
+    char* koniec = NULL;
+    long cele_cislo = strtol(riadok, &koniec, 10);
+
+    if (koniec == riadok) {
+        return -1;
+    }
+
+    if (*koniec == '.') {
+        double desatinne = strtod(riadok, &koniec);
+        if (koniec == riadok) {
+            return -1;
+        }
+        *cislo = desatinne;
+    }
+    else {
+        *cislo = (double)cele_cislo;
+    }
+
+    return 1;
+}
+
+double horner(double* koeficienty, int pocet, double x) {
+    double vysledok = 0.0;
+    int i = 0;
+
+    for (i = 0; i < pocet; i++) {
+        vysledok = vysledok + koeficienty[i] * x;
+    }
+
+    return vysledok;
+}
+
+int main() {
+    double x = 0.0;
+    double koeficienty[SIZE];
+    int pocet = 0;
+
+    memset(koeficienty, 0, SIZE * sizeof(double));
+
+    int stav = nacitaj_riadok(&x);
+    if (stav != 1) {
+        fprintf(stderr, "Chyba: Nepodarilo sa nacitat hodnotu.\n");
+        return 1;
+    }
+
+    while (1) {
+        if (pocet >= SIZE) {
+            fprintf(stderr, "Chyba: Prilis vela koeficientov (max %d).\n", SIZE);
+            return 1;
+        }
+
+        double koef = 0.0;
+        stav = nacitaj_riadok(&koef);
+
+        if (stav == 0) {
+            break;
+        }
+
+        if (stav == -1) {
+            fprintf(stderr, "Chyba: Nepodarilo sa nacitat koeficient c. %d.\n", pocet + 1);
+            return 1;
+        }
+
+        koeficienty[pocet] = koef;
+        pocet += 1;
+    }
+
+    if (pocet == 0) {
+        fprintf(stderr, "Chyba: Nepodarilo sa nacitat koeficient c. 1.\n");
+        return 1;
+    }
+
+    double vysledok = horner(koeficienty, pocet, x);
+    double skrateny = trunc(vysledok * 100.0) / 100.0;
+
+    printf("Vysledok je: %.2f\n", skrateny);
+
+    return 0;
+}