#include <stdio.h>
int main()
{
int a;
float x;
float y;
printf("calculator by 4308\n"); printf("choose the operation:\n1 - sum\n2 - minus\n3 - multiply\n4 - division"); printf("\nEnter first number: \n"); printf("Enter second number: \n"); if (a == 1){
printf("Your result is: %.2f", x
+y
); }
else if (a == 2){
printf("Your result is: %.2f", x
-y
); }
else if (a == 3){
printf("Yor result is: %.2f", x
*y
); }
else if (a == 4){
if(y != 0){
printf("Your result is: %.2f", x
/y
); }
else{
printf("Error division by zero"); }
}
else{
printf ("You write invalid choose"); }
return 0;
}
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