Esimene

Kood.c

+#include <stdio.h>
+#include <string.h>
+
+int main(void){
+    char a[20], b[20], c[20], d[20];
+
+    printf("Sisestage 4x4 Karnaugh kaart või 16 loogikaväärtust: \n");
+
+    scanf("%s", a);
+
+    if(strlen(a) == 4){
+        printf("Sisestage teine rida \n");
+        scanf("%s", b);
+        if (strlen(b) != 4){
+            printf("Vale!");
+            return 0;
+        }
+
+        printf("Sisestage kolmas rida \n");
+        scanf("%s", c);
+        if (strlen(c) != 4){
+            printf("Vale!");
+            return 0;
+        }
+
+        printf("Sisestage neljas rida \n");
+        scanf("%s", d);
+
+        if (strlen(d) != 4){
+            printf("Vale!");
+            return 0;
+        }
+    }
+    else{
+        printf("Vale!");
+    }
+
+}
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