#include<stdio.h> #include<stdbool.h> #include<conio.h> #include<math.h> #include<string.h> void main() { int num1, num2, sum; char math; printf("Enter num 1: "); scanf("%d", &num1); printf("enter num 2: "); scanf("%d", &num2); fflush(stdin); printf("Enter calculation : "); scanf("%C", &math); switch(math) { case '+': sum = add(num1, num2); printf("%d + %d = %d",num1 ,num2, sum); break; case '-': sum = sub(num1, num2); printf("%d - %d = %d",num1 ,num2, sum); } } int add(int a, int b) { int sum; sum = a + b; return sum; } int sub(int a, int b) { int sum; a - b; return sum; }
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