rock_paper_scissors.c

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int rockpaperscissor(char you ,char comp)
{
    //returns 1 if you win ,-1 if you loose and 0 if draw
    if(you==comp)
    {
        return 0;
    }
    if(you=='r' && comp=='p')
    {
      return -1;
    }
    else if(you=='p' && comp=='r') {
      return 1;
    }
    if(you=='r' && comp=='s'){
      return 1;
    }
    else if(you=='s' && comp=='r'){
      return -1;
    }
    if(you=='p' && comp=='s'){
      return -1;
    }
    else if(you=='s' && comp=='p') {
      return 1;
    }
}
int main()
{
  char you,comp;
  int number;
  srand(time(0));
  number = rand()%100+1;
  if(number<=33){
     comp='r';
  }
  else if(number>33 && number <=66){
     comp='p';
  }
  else 
  {
    comp='s';
  }
 
  printf("Enter r for rock , p for paper and s for scissor\n");
  scanf("%c",&you);
  int result=rockpaperscissor(you ,comp);
  printf("You chose %c and computer chose %c.\n",you,comp);
  if(result==0){
    printf("Game draw\n");
  }
  else if(result==1){
    printf("You Win\n");
  }
  else {
    printf("You Lose\n");
  }
  return 0;

}