Thread: caesar cypher

I don't know if this is what you meant, but now the 0 terminates the program and the encoding the number has been fixed, but the actual interpreting of the sentence has totally screwed up. I'm assuming it has something to do with a being a character instead of an integer like it was before.. or something like that.. any idea? lol

Code:

int main(void){

    int  i,a;
    char sent[100];
    while(fgets(sent,sizeof(sent),stdin)){
      a = sent[0];
      if(a == '0'){
           break;
           }
      else{
           fgets(sent,sizeof(sent),stdin);
            
            for(i=0;sent[i];i++){
                if(sent[i] == ' ')
                  sent[i] = ' ';
                else if((sent[i] + a) > 'Z')
                  sent[i] = 'A' + ((sent[i] + a) - 'Z')-1;
                else
                  sent[i] += a;
                  }
            printf("%s\n",sent);
                       
            }
    }
    return 0;
    }