Bunu dener misin ?
#include <stdio.h>
#include <stdlib.h>
int toplama(int x, int y);
int cikarma(int x, int y);
int bolme(int x, int y);
int carpma(int x, int y);
void menu();
int main()
{
int secim = 0;
int x, y;
menu();
printf("Bir numara seçiniz: ");
scanf("%d"...