c언어 프로그래밍 질문입니다.

  1 #include<stdio.h>
  2
  3 int main(void)
  4 {
  5   int k = 0;
  6   char tempId[10] = {0};
  7   char tempPw[10] = {0};
  8   int n = 0;
  9
 10  while(1)
 11   {
 12     printf("<Menu>\n");
 13     printf("1. Play game\n");
 14     printf("2. Ranking\n");
 15     printf("3. Exit\n");
 16     printf("Select menu : ");
 17     scanf ("%d", &n);
 18
 19     if(n == 1)
 20     {
 21       printf("<Login>\n");
 22
 23       printf("ID : ");
 24
 25       for(k = 0; k < 10; k++)
 26       {
 27         scanf("%c", &(tempId[k]));
 28
 29         if(tempId[k] == '\n')
 30           break;
 31       }
 32
 33       printf("PW : ");
 34       for(k = 0; k < 10; k++)
 35       {
 36         scanf("%c", &(tempPw[k]));
 37
 38         if(tempPw[k] == '\n')
 39           break;
 40       }
 41     }
 42   }
 43
 44  return 0;
 45 }