C/switch.c at main · cssahil98/C · GitHub

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/*C program to design calculator with basic operations using switch.*/

#include <stdio.h>

int main()
{
    int num1,num2;
    float result;
    char ch;    //to store operator choice

    printf("Enter first number: ");
    scanf("%d",&num1);
    printf("Enter second number: ");
    scanf("%d",&num2);

    printf("Choose operation to perform (+,-,*,/,%): ");
    scanf(" %c",&ch);

    result=0;
    switch(ch)
    {
        case '+':
            result=num1+num2;
            break;

        case '-':
            result=num1-num2;
            break;

        case '*':
            result=num1*num2;
            break;

        case '/':
            result=(float)num1/(float)num2;
            break;

        case '%':
            result=num1%num2;
            break;
        default:
            printf("Invalid operation.\n");
    }

    printf("Result: %d %c %d = %f\n",num1,ch,num2,result);
    return 0;
}