#include
int sum(int a,int b);
int subtract(int a,int b);
int multiply(int a,int b);
float divide(float a,float b);
int modulus(int a,int b);
int main()
{
int num_1,num_2,choice,result;
float result_division;
char continu;
printf("MENU:\t1.add\t2.subtract\t3.multiply\t4.divide\t5.modulus\n");
do{
prinf("Enter your choice: ");
scanf("%dt",&choice);
printf("Enter your two numbers:\n");
scanf("%d%d",&num_1,&num_2);
switch(choice){
case 1:
result=sum(num_1,num_2);
printf("result=%d\n",result);
break;
case 2:
result=subtract(num_1,num_2);
printf("result=%d\n",result);
break;
case 3:
result=multiply(num_1,num_2);
printf("result=%d\n",result);
break;
case 4:
if(num_2!=0){
result_division=divide(num_1,num_2);
printf("result=%f\n",result_division);}
else
printf("un known\n");
break;
case 5:
result=modulus(num_1,num_2);
printf("result=%d\n",result);
break;
default:
printf("enter {1,2,3,4,5}\n");
}
printf("enter y to continue:");
scanf(" %c",&continu);
}while(continu=='y'||continu=='Y');
return 0;
}
int sum(int a,int b){
return a+b;
}
int subtract(int a,int b){
return a-b;
}
int multiply(int a,int b){
return a*b;
}
float divide(float a,float b){
return a/b;
}
int modulus(int a,int b){
return a%b;
}