OJ Board

Code: Select all

#include<stdio.h>
#include<string.h>
int main()
{
    char s[10000];
    while(gets(s))
    {
        if(strcmp(s,"DONE")==0) break;

        char s1[10000],s2[10000];
        int j=0;
        int i;
        for(i=0;i<strlen(s);i++)
        {
            if(isalpha(s[i]))
            {
                if(islower(s[i]))
                {
                    s1[j]=toupper(s[i]);
                    j++;
                }
                else
                {
                    s1[j]=s[i];
                    j++;
                }
            }
        }
        s1[j]='\0';
        strcpy(s2,s1);
        strrev(s2);
        if(strcmp(s2,s1)==0)
        {
            printf("You won't be eaten!\n");
        }
        else
        {
            printf("Uh oh..\n");
        }
    }
    return 0;
}

Code: Select all

#include <ctype.h>

Code: Select all

#include<stdio.h>
#include<string.h>
#define SIZE 1000


int palin(char a[SIZE],int length);

int main()
{
	//freopen("input.txt","r",stdin);	

	char a[SIZE];
	char b[SIZE];
	while( (gets(b)) )
	{   
		if( strcmp(b,"DONE") == 0 )
			break;
		int j=0;
		for(int i=0;i<strlen(b);i++)
		{
			if((b[i]>=65 && b[i]<=90) || (b[i]>=97 && b[i]<=122))
			{
				int val = b[i];
				if(val>90)
				{
					val = val - 97;
					a[j++]=65+val;
				}
				else
					a[j++]=b[i];
			}
		}
		a[j]='\0';
		int length,count,count1;

		 length=strlen(a)-1;

		count=palin(a,length);		

		if(count==1)printf("You won't be eaten!\n");
		else printf("Uh oh..\n");		
   }

	return 0;
}

int palin(char a[SIZE],int length)
{
	int len=length,index=0;
	while(index!=length)
	{
		if((len%2!=0) && (length-index==1) && (a[index]==a[length]))return(1);
		if(a[index]==a[length]){index++;length--;}
		else return(0);
	}
	if(index==length)
		return 1;
	else
		return 0;
}