Project in C Language : Mini Calculator

_________________________________________________________________________________ #include<stdio.h> #include<stdlib.h> #include<math.h> int result=0; int k=0; void add() { int a;int b; if(k==0) { printf(" Enter two numbers :\n"); printf(" "); scanf("%d",&a); printf(" "); scanf("%d",&b); result=a+b; } else { printf(" Enter a number\n"); ...