ifo==

i write a C program to perform the functions of a calculator, as this #include<stdio.h> #include<conio.h> int sum(int,int); int dif(int,int); int pro(int,int); float div(int,int); void main() { int a,b; char o; clrscr(); printf("enter the numbers "); scanf("%d%d",&a,&b); printf("enter the...