C/Calculator.c at main · rahul-suthar/C · GitHub

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#include <stdio.h>
#include <conio.h>
#include <math.h>

int main()
{
    int a, b;
    float c;
    char ch;

    printf("Enter operator (+,-,*,/,%)\n");
    scanf("%c", &ch);

    printf("Enter values of a & b :\n");
    scanf("%d%d", &a, &b);

    switch (ch)
    {
    case '+':
        c = (a + b);
        printf("Addition is : %0.2f", c);
        break;

    case '-':
        c = (a - b);
        printf("Substraction is : %0.2f", c);
        break;

    case '*':
        c = 1.0 * a * b;
        printf("Multiplication is : %0.2f", c);
        break;

    case '/':
        c = (a * 1.0) / b;
        printf("Division is : %0.3f", c);
        break;

    case '%':
        c = (a % b) * 1.0;
        printf("Reminder is : %0.2f", c);
        break;

    default:
        printf("invalid operator");
        break;
    }

    return 0;
}