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.gitignore

+#include <stdio.h>
+#include <string.h>
+
+int kontroll(char b[16]){
+	int i;
+	for (i = 0; i < strlen(b); i++){
+		if (b[i] != '0' && b[i] != '1'){
+			return 1;
+		}
+	}
+	if (strlen(b) != 4){
+		return 1;
+	}
+	return 0;
+}
+
+
+
+
+int sisestus(const char tekst[40], char a[16], char b[16], char c[16], char d[16]){
+	int i;
+	printf("%s", tekst);
+	scanf("%s", a);
+	for (i = 0; i < strlen(a); i++){
+		if (a[i] != '0' && a[i] != '1'){
+			printf("Lubamatu sisend: %s\n", a);
+			return 1;
+		}
+	}
+	if (strlen(a) == 4){
+			/*printf("\n%s\n", a);
+			printf("Sisestage K-kaardi TEINE rida \n");
+			scanf("%s", b);*/
+		
+		do{
+			
+			printf("\n%s\n", a);
+			printf("Sisestage K-kaardi TEINE rida \n");
+			scanf("%s", b);
+		}while(kontroll(b) == 1);
+			
+		printf("\n%s\n", a);
+		printf("%s\n", b);
+        printf("Sisestage K-kaardi KOLMAS rida \n");
+        scanf("%s", c);
+        do{
+            printf("Lubamatu sisend: %s", c);
+			printf("\n%s\n", a);
+			printf("%s\n", b);
+			printf("Sisestage K-kaardi KOLMAS rida \n");
+			scanf("%s", c);
+        }while(kontroll(c) == 1);
+       
+		printf("\n%s\n", a);
+		printf("%s\n", b);
+		printf("%s\n", c);
+        printf("Sisestage K-kaardi NELJAS rida \n");
+        scanf("%s", d);
+        do{
+			printf("Lubamatu sisend: %s", d);
+			printf("\n%s\n", a);
+			printf("%s\n", b);
+			printf("%s\n", c);
+			printf("Sisestage K-kaardi NELJAS rida \n");
+			scanf("%s", d);
+        }while(kontroll(d) == 1);
+        
+		printf("\nTerviklik kaart:\n");
+		printf("\n%s\n", a);
+		printf("%s\n", b);
+		printf("%s\n", c);
+		printf("%s\n", d);
+	}
+	
+	else if (strlen(a) >= 16){
+		for (i = 0; i < 16; i++){
+			if (a[i] != '0' && a[i] != '1'){
+				printf("\nLubamatu sisend: %s\n", a);
+				return 1;
+			}
+		}
+	}
+	else{ // Kui kasutaja sisestab mittesobiva märkide arvu, siis programm teeb exit.
+		printf("Lubamatu sisend: %s", a);
+		return 1;
+	}
+	return 0;
+}
+	
+	/*char array[4][4] = {{
+		a[20],
+		b[20],
+		c[20],
+		d[20]
+	}};
+	int j;
+	for (i = 0; i < 4; i++){
+		for (j = 0; j < 4; j++){
+				printf("%c", array[i][j]);
+		}
+	
+	}*/
+ 
+void info(char a[16], char b[16], char c[16], char d[16]){
+	char f0;
+	char f1;
+	char f2;
+	char f3;
+	char f4;
+	char f5;
+	char f6;
+	char f7;
+	char f8;
+	char f9;
+	char fA;
+	char fB;
+	char fC;
+	char fD;
+	char fE;
+	char fF;
+	
+	
+	if (strlen(a) >= 16){
+		f0 = a[0];
+		f1 = a[1];
+		f2 = a[3]; 
+		f3 = a[2];
+		f4 = a[4];
+		f5 = a[5];
+		f6 = a[7];
+		f7 = a[6];
+		f8 = a[12];
+		f9 = a[13];
+		fA = a[15];
+		fB = a[14];
+		fC = a[8];
+		fD = a[9];
+		fE = a[11];
+		fF = a[10];
+	}
+	else{
+		f0 = a[0];
+		f1 = a[1];
+		f2 = a[3]; 
+		f3 = a[2];
+		
+		f4 = b[0];
+		f5 = b[1];
+		f6 = b[3];
+		f7 = b[2];
+		
+		f8 = c[0];
+		f9 = c[1];
+		fA = c[3];
+		fB = c[2];
+		
+		fC = d[0];
+		fD = d[1];
+		fE = d[3];
+		fF = d[2];
+	}
+
+	if (f0 == '1'){
+		printf("Konstant 1 olemas.\n");
+	}
+	else{
+		printf("Konstant 1 puudub.\n");
+	}
+	
+	if (fF == '1'){
+		printf("PAARITU arv liikmeid\n");
+	}
+	else{
+		printf("PAARISarv liikmeid\n");
+	}
+	
+	if (f0 == f8){
+		printf("x1 puudub.\n");
+	}
+	else{
+		printf("x1 olemas\n");
+	}
+	
+	if (f0 == f4){
+		printf("x2 puudub.\n");
+	}
+	else{
+		printf("x2 olemas\n");
+	}
+	
+	if (f0 == f2){
+		printf("x3 puudub.\n");
+	}
+	else{
+		printf("x3 olemas\n");
+	}
+
+	if (f0 == f1){
+		printf("x4 puudub.\n");
+	}
+	else{
+		printf("x4 olemas\n");
+	}
+	
+	if (f7 == 1){
+		printf("ilma [x1] PAARITU.\n");
+	}
+	else{
+		printf("ilma [x1] PAARIS\n");
+	}
+	
+	if (fB == 1){
+		printf("ilma [x2] PAARITU.\n");
+	}
+	else{
+		printf("ilma [x2] PAARIS\n");
+	}
+	
+	if (fD == 1){
+		printf("ilma [x3] PAARITU.\n");
+	}
+	else{
+		printf("ilma [x3] PAARIS\n");
+	}
+	
+	if (fE == 1){
+		printf("ilma [x4] PAARITU.\n");
+	}
+	else{
+		printf("ilma [x4] PAARIS\n");
+	}
+}
+ 
+ 
+ 
+ 
+ 
+int main(void){
+    char a[16], b[16], c[16], d[16];
+    int input;
+	input = sisestus("Sisestage 4x4 Karnaugh kaart voi 16 loogikavaartust: \n", a, b, c, d);
+	kontroll(a);
+	if (input == 1){
+		return 1;
+	}
+	
+	
+	
+	return 0;
+}