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

#pragma warning(disable:4996)
#ifndef __CHARCODES__
#define __CHARCODES__
#define INT_UPPER_BOUND       1001
#define INT_LOWER_BOUND       -1001
#define VOODOO       -1024
#define ZERO       0
#define MOD       5
#endif

int main() {
	// initialize your variables...
	int int1;
	int int2;
	double sol;
	char opr;
	char sym;
	int typeCode = -1;
	//int1 prompt
	printf("Please enter a number between -1000 and 1000:\n");
	scanf("%d", &int1);
	rewind(stdin);
		//input parameters
	while (int1 <= INT_LOWER_BOUND || int1 >= INT_UPPER_BOUND) {
		printf("Yikes, why don't you try that again?\n\nPlease enter a number between -1000 and 1000:\n");
		scanf("%d", &int1);
		rewind(stdin);
	}
	//int2 prompt
	printf("Please enter another number between -1000 and 1000:\n");
	scanf("%d", &int2);
	rewind(stdin);
		//input parameters
	while (int2 != VOODOO && int2 <= INT_LOWER_BOUND || int2 >= INT_UPPER_BOUND) {
		printf("Yikes, why don't you try that again?\n\nPlease enter a number between -1000 and 1000:\n");
		scanf("%d", &int2);
		rewind(stdin);
	}
		//voodoo
	while (int2 == VOODOO) {
		printf("How did I know you would type 'negative one thousand and twenty four?'\n*tsk* *tsk* *tsk*\nNow why don't you try using a valid input?\n");
		scanf("%d", &int2);
		rewind(stdin);
	}
		//NO zeros!
	while (int2 == ZERO) {
		printf("No zeros allowed! Try that again:\n");
		scanf("%d", &int2);
		rewind(stdin);
	}
	//operator prompt
	printf("Choose an operation: (1 - 5)\n\n 1 : +\n 2 : -\n 3 : *\n 4 : /\n 5 : %%\n\n");
	scanf("%c", &opr);
	rewind(stdin);
	while (opr >= '6' || opr <= '0') {
		printf("Why don't you try using a valid input?\n");
		scanf("%c", &opr);
		rewind(stdin);
	}
	//Operator selection logic
	switch (opr) {
	case '1':
		sym = '+';
		sol = int1 + int2;
		break;
	case '2':
		sym = '-';
		sol = int1 - int2;
		break;
	case '3':
		sym = '*';
		sol = int1 * int2;
		break;
	case '4':
		sym = '/';
		sol = (double) int1 / int2;
		break;
	case '5':
		sym = '%';
		sol = int1 % int2;
		break;
	}
	//output
	printf("Here is your problem and its solution:\n\n            %d %c %d = %4f\n\n                         ...press any key to exit", int1, sym, int2, sol);
	_getch();
	return 0;
}

// answer the focus question