diff --git a/a1/program.c b/a1/program.c
index c6f6999..49811fa 100644
--- a/a1/program.c
+++ b/a1/program.c
@@ -2,31 +2,49 @@
 #include <stdlib.h>
 #include <string.h>
 #include <math.h>
+#include <ctype.h>
 
 int main () {
-	char* BMW = (char*) calloc (100, sizeof(char));
-	int x;
-	int counter = 0;
-	int numbers [100];
-	for (int i = 0; fgets(BMW, 100, stdin) != NULL; i++){
-		if (!strcmp("\n", BMW)) {
-			counter = i;
-			break;
-		}
-		if (i == 0){
-			x = atoi (BMW);
-		}
-		else {
-			numbers [i] = atoi (BMW);
-		}
-	}
-	int result = 0;
-	while (counter > 0){
-		result += pow (x, counter -1) * numbers [counter];
-		counter --;
-	}
-	printf ("Vysledok je: ");
-	printf ("%d\n", &result);
-	free(BMW);
-	return 0;
+    char* input = (char*) calloc (100, sizeof(char));
+    double x;
+    char* ptr;
+    int counter = 0;
+    double numbers [100];
+    numbers[0] = 0;
+    for (int i = 0; fgets(input, 100, stdin) != NULL; i++){
+        if (!strcmp("\n", input))
+            break;
+
+        if(i == 0){
+            for(int j = 0; input[j] != '\0' && input[j] != '\n'; j++)
+                if(!isdigit(input[j]) && input[j] != '.'){
+                    printf("Nepodarilo sa nacitat zaklad x\n");
+                    return 0;
+                }
+        }
+        
+        for(int j = 0; input[j] != '\0' && input[j] != '\n'; j++)
+            if(!isdigit(input[j]) && input[j] != '.'){
+                printf("Nepodarilo sa nacitat polynom na %d mieste.\n", i);
+                return 0;
+            }
+            
+        if (i == 0){
+            x = (double)strtod(input, &ptr);
+        }
+        else {
+            numbers [i] = (double)strtod(input, &ptr);
+        }
+        counter = i;
+    }
+    double result = 0;
+    for(int i = 1; i <= counter; i++)
+        result += pow (x, i-1) * numbers [counter - i + 1];
+
+    result = roundf((float) result * 100)/100;
+
+    printf ("Vysledok je: ");
+    printf ("%.2f\n", result);
+    free(input);
+    return 0;
 }
diff --git a/du3/program.c b/du3/program.c
index 903ec9d..fa02602 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -1,61 +1,88 @@
 #include <stdio.h>
 #include <ctype.h>
 #include <stdlib.h>
+#include <string.h>
 
 int main() {
-	char input[10];
-	char numbers[4];
-	int date[3]
+	char* input = (char*) calloc(11, sizeof(char));
+	char numbers[4] = "\0\0\0\0";
+    char* ptr;
+	int date[3] = {0, 0, 0};
 	int counter1 = 0, counter2 = 0;
-	fgets(input, 10, stdin);
+	
+	int truth = 0;
 
-	for(int i = 0; i < 10; i++){
-		if(!isdigit(input[i]) && input[i] != '.' && input[i] != '\n'){
-			break;	
-		}
+	for (int j = 0; fgets(input, 11, stdin) != NULL; j++){
+		if(input[0] == '\n') continue;
+		for(int i = 0; i < 11; i++){
+			if(!isdigit(input[i]) && input[i] != '.' && input[i] != '\0' && input[i] != '\n'){
+				puts("Neplatny datum.");
+				goto LABEL;	
+			}
 
-		if(input[i] != '.' && input[i] != '\n'){
-			numbers[counter1++] = input[i];
-		}
-		else {
-			date[counter2++] = atoi(numbers);
-			if(counter2 == 1 && (date[0] < 1 || date[0] > 31)){
-				break;
+			if(input[i] != '.' && input[i] != '\n' && input[i] != '\0'){
+				numbers[counter1++] = input[i];
 			}
-			else if(counter2 == 2 && (date[1] < 1 || date[1] > 12)){
-				break;
-			}
-			else if(counter2 == 2 && date[0] > 29){
-				break;
-			}
-			else if (counter2 == 3){
-				date[1] += 7;
-				if(date[0] > 31 && (date[1] == 1 || date[1] == 3 || date[1] == 5 || date[1] == 7 || date[1] == 8 || date[1] == 10 || date[1] == 12)){
-					date[0] -= 31;
-					date[1]++;
-					if(date[1] > 12){
-						date[1] = 1;
-						date[2]++;
+			else {
+				date[counter2++] = (int) strtol(numbers, &ptr, 10);
+				if(counter2 == 1 && (date[0] < 1 || date[0] > 31)){
+					puts("Neplatny datum.");
+					goto LABEL;
+				}
+				else if(counter2 == 2 && (date[1] < 1 || date[1] > 12)){
+					puts("Neplatny datum.");
+					goto LABEL;
+				}
+				/*else if(counter2 == 2 && date[0] > 29){
+					//goto LABEL;
+				}*/
+				else if (counter2 == 3){
+					if(date[2] < 1900 || date[2] > 2100){ 
+						puts("Neplatny datum.");
+						goto LABEL;
 					}
+					if(date[0] >= 29 && date[1] == 2 && (date[2] % 4 != 0 || (date[2] % 100 == 0 && date[2] % 400 != 0))){
+        				puts("Neplatny datum.");
+        				goto LABEL;
+    				}
+					date[0] += 7;
+					if(date[0] > 31 && (date[1] == 1 || date[1] == 3 || date[1] == 5 || date[1] == 7 || date[1] == 8 || date[1] == 10 || date[1] == 12)){
+						date[0] -= 31;
+						date[1]++;
+						if(date[1] > 12){
+							date[1] = 1;
+							date[2]++;
+						}
+					}
+					if(date[0] > 30 && (date[1] == 4 || date[1] == 6 || date[1] == 9 || date[1] == 11)){
+						date[0] -= 30;
+						date[1]++;
+					}
+					if(date[0] > 29 && date[1] == 2 && date[2] % 4 == 0 && (date[2] % 100 != 0 || (date[2] %100 == 0 && date[2] % 400 == 0))){
+						date[0] -= 29;
+						date[1]++;	
+					}
+					else if(date[0] > 28 && date[1] == 2){
+						date[0] -= 28;
+						date[1]++;
+					}
+					printf("%d.%d.%d\n\n", date[0], date[1], date[2]);
+					break;
 				}
-				if(date[0] > 30 && (date[1] == 4 || date[1] == 6 || date[1] == 9 || date[1] == 11)){
-                                        date[0] -= 30;
-                                        date[1]++;
-                                }
-				if(date[0] > 29 && date[1] == 2 && date[2] % 4 == 0 && (date[2] % 100 != 0 || (date[2] %100 == 0 && date[2] % 400 == 0))){
-					date[0] -= 29;
-                                        date[1]++;	
-				}
-				else if(date[0] > 28 && date[1] == 2){
-					date[0] -= 28;
-                                        date[1]++;
-				}
-				printf("%d.%d.%d\n", date[0], date[1], date[2]);
-				return 0;
+				memset(numbers, '\0', 4);
+				counter1 = 0;
 			}
 		}
+		if(isdigit(input[9])) getchar();
+		LABEL:
+		memset(input, '\0', 11);
+		date[0] = 0, date[1] = 0, date[2] = 0;
+		counter1 = 0, counter2 = 0;
+		memset(numbers, '\0', 4);
+		
 	}
-	puts("Neplatny datum");
-
+	
+	
+	free(input);
 	return 0;
-}
+}
\ No newline at end of file