26.Encrypt/Decrypt string

 #include<stdio.h>

void encrypt(char *a)
{
    while(*a!='\0')
    {
        *a=*a+1;
        a++;
    }
}
void decrypt(char *c)
{
    while(*c!='\0')
    {
        *c=*c-1;
        *c++;
    }
}

int main(){
    char str[]="hi bro how are you";
    encrypt(str);
    printf("Encrypted string is :%s",str);
    decrypt(str);
    printf("\nDecrypted string is :%s",str);
    return 0;
}

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