Problem with a program in c using functions ,ive written the program in notepad.?

#include %26lt;stdio.h%26gt;





int funcadd(num1, num2) {


int result;


result = num1 + num2;


}


int funcsub(num1, num2) {


int result;


result = num1 - num2;


}


int funcmult(num1, num2) {


int result;


result = num1 * num2;


}





main() {


int result, var1, var2;


char unit;





printf("type first value\n");


scanf("%d",%26amp;var1);





printf("type a to add s to subtract m to m multiply:\n");


scanf("%c", %26amp;unit);





printf("type second value\n");


scanf("%d",%26amp;var2);





if (unit = 'a') {


result = funcadd(var1, var2);


printf("the answer is %d\n", result);


}


if (unit = 's') {


result = funcsub(var1, var2);


printf("the answer is %d\n", result);


}


if (unit = 'm') {


result = funcmult(var1, var2);





printf("the answer is %d\n", result);


}


printf("%c", unit);


}





PRODUCES





type first value


5


type a to add s to subtract m to multiply


type second value


6


the answer is 11


the answer is -1


the answer is 30


m

Problem with a program in c using functions ,ive written the program in notepad.?
I guess this is the program you are looking for! Try to compile and run. Hope it will help. ^^





#include %26lt;stdio.h%26gt;


#include %26lt;conio.h%26gt;





int funcadd(int num1, int num2) {


int res = num1 + num2;


return res;


}


int funcsub(int num1, int num2) {


int res = num1 - num2;


return res;


}


int funcmult(int num1, int num2) {


int res = num1 * num2;


return res;


}





void main() {


int result1, result2, result3, var1, var2;


char unit;


clrscr();





do{


printf("type first value\n");


scanf("%d",%26amp;var1);





printf("type a to add s to subtract m to multiply\n");


unit=getch();


unit=tolower(unit);





printf("type second value\n");


scanf("%d",%26amp;var2);


switch(unit)


{


case 'a' :


{


result1 = funcadd(var1, var2);


printf("the answer is %d\n", result1);


printf("%c",unit);


}break;


case 's' :


{


result1 = funcadd(var1, var2);


printf("the answer is %d\n", result1);


result2 = funcsub(var1, var2);


printf("the answer is %d\n", result2);


printf("%c",unit);


}break;


case 'm' :


{


result1 = funcadd(var1, var2);


printf("the answer is %d\n", result1);


result2 = funcsub(var1, var2);


printf("the answer is %d\n", result2);


result3 = funcmult(var1, var2);


printf("the answer is %d\n", result3);


printf("%c",unit);


}break;


}


}while(unit=='x');





getch();


}





~o~o~o~o~o~o~o~o~o~o~o~o~o~o~o~o~o~o~o...





yeah! you're right! if I use getchar(); function my created program will be lessen.. thanks for the idea. hope you mark my answer as the best because it complied with the requirements you need. thanks. ^^
Reply:And what is the problem?
Reply:if (unit == 's')


(and the same for the others)





INSTEAD OF ADDITIONAL DETAILS:


PLEASE DO WHAT I'VE WRITTEN, AND DON'T LOSE TIME. IT'S THE SOLUTION!