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  1. #include <stdio.h>
  2.  
  3. struct user_info {
  4. 	int id_num;
  5. 	int password;
  6. };
  7.  
  8. struct user_info user[16];
  9.  
  10. int print_seats(int s_array[3][5]);
  11. int reserve(int s_array[3][5], int row, int col);
  12. int cancle(int s_array[3][5], int row, int col);
  13. int load_user_info();
  14. int check_login(int id, int passwd);
  15.  
  16. int main() {
  17. 	int id, passwd;
  18. 	int s[3][5] = { 0 };
  19. 	int select;
  20. 	load_user_info();
  21. 	do {
  22. 		printf("로그인을 하세요.\n");
  23. 		printf("id_num : ");
  24. 		scanf("%d", &id);
  25. 		printf("password : ");
  26. 		scanf("%d", &passwd);
  27. 		printf("%d",check_login(id, passwd));
  28.  
  29. 		if (check_login(id, passwd) == id) {
  30. 			printf("로그인 성공\n");
  31. 		}
  32. 		else if (check_login(id, passwd) == -1) {
  33. 			printf("아이디가 존재하지 않습니다.\n");
  34. 		}
  35. 		else if (check_login(id, passwd) == -2) {
  36. 			printf("아이디는 맞으나 패스워드가 틀렸습니다.\n");
  37. 		}
  38. 	} while (check_login(id, passwd) != id);
  39.  
  40.  
  41.  
  42.  
  43. 	do {
  44. 		load_user_info();
  45. 		printf("1---좌석확인하기\n");
  46. 		printf("2--예약하기\n");
  47. 		printf("3--예약취소하기\n");
  48. 		printf("4--종료하기\n");
  49. 		printf("메뉴를 선택하시요:");
  50. 		scanf("%d", &select);
  51.  
  52. 		if (select == 1)
  53. 		{
  54. 			printf("선택된 메뉴=좌석확인하기\n\n");
  55. 			print_seats(s);
  56. 		}
  57.  
  58. 		else if (select == 2)
  59. 		{
  60. 			int i, j;
  61. 			printf("선택된 메뉴=예약하기\n\n");
  62. 			printf("예약을 원하는 자리는?(행 열)?");
  63. 			scanf("%d %d", &i, &j);
  64. 			reserve(s, i, j);
  65. 		}
  66.  
  67. 		else if (select == 3)
  68. 		{
  69. 			int i, j;
  70. 			printf("선택된 메뉴=예약취소하기\n\n");
  71. 			printf("예약취소를 원하는 자리는(행 열)?\n");
  72. 			scanf("%d %d", &i, &j);
  73. 			cancle(s, i, j);
  74. 		}
  75.  
  76. 	} while (select != 4);
  77.  
  78. 	printf("선택된 메뉴=종료하기\n\n");
  79. 	printf("이용해 주셔서 감사합니다.\n\n");
  80.  
  81. 	return 0;
  82. }
  83.  
  84. int print_seats(int s_array[3][5])
  85. {
  86. 	int i, j, k;
  87. 	printf("   |");
  88. 	for (k = 0; k < 5; k++) {
  89. 		printf(" %d", k);
  90. 	}
  91. 	printf("\n");
  92. 	printf(" ---------------\n");
  93. 	for (i = 0; i < 3; i++) {
  94. 		printf(" %2d|", i);
  95. 		for (j = 0; j < 5; j++) {
  96. 			printf("%2d", s_array[i][j]);
  97. 		}
  98. 		printf("\n");
  99. 	}
  100. 	return 0;
  101. }
  102.  
  103. int reserve(int s_array[][5], int row, int col)
  104. {
  105. 	if (s_array[row][col] == 0) {
  106. 		s_array[row][col] = 1;
  107. 		printf("예약이 완료되었습니다.\n");
  108. 		print_seats(s_array);
  109. 		return 1;
  110. 	}
  111. 	else if (s_array[row][col] == 1) {
  112. 		printf("이미 예약된 자리입니다.\n");
  113. 		return -1;
  114. 	}
  115. 	else {
  116. 		printf("행은 0~2, 열은 0~4사이의 숫자만 입력하세요\n");
  117. 	}
  118. 	return 0;
  119. }
  120.  
  121. int cancle(int s_array[][5], int row, int col)
  122. {
  123. 	if (s_array[row][col] == 1) {
  124. 		s_array[row][col] = 0;
  125. 		printf("예약이 취소되었습니다.\n");
  126. 		print_seats(s_array);
  127. 		return 1;
  128. 	}
  129. 	else if (s_array[row][col] == 0) {
  130. 		printf("이미 취소된 자리입니다.\n");
  131. 		return -1;
  132. 	}
  133. 	else {
  134. 		printf("행은 0~2, 열은 0~4사이의 숫자만 입력하세요\n");
  135. 	}
  136. 	return 0;
  137. }
  138.  
  139.  
  140.  
  141. int load_user_info() {
  142. 	for (int i = 0; i < 16; i++) {
  143. 		user[i].id_num = 10 + (i * 10);
  144. 		user[i].password = 1004 + (i * 1000);
  145. 	}
  146.  
  147. 	return 0;
  148. }
  149.  
  150. int check_login(int id, int passwd) {
  151. 	int low, high, middle;
  152. 	low = 0;
  153. 	high = 15;
  154. 	while (low <= high) {
  155. 		middle = (low + high) / 2;
  156. 		if (id == user[middle].id_num) {
  157.  
  158. 			middle = (low + high) / 2;
  159. 			if (passwd == user[middle].password) {
  160. 			}
  161.  
  162. 			else if (passwd > user[middle].password) {
  163.  
  164. 				low = middle + 1;
  165. 			}
  166. 			else {
  167. 				high = middle + 1;
  168. 			}
  169. 		}
  170. 		else if (id > user[middle].id_num) {
  171. 			low = middle + 1;
  172. 		}
  173.  
  174. 		else {
  175. 			high = middle - 1;
  176. 		}	
  177. 	}
  178.  
  179.  
  180. 	return 0;
  181.  
  182.  
  183. }
Runtime error #stdin #stdout 0.01s 5504KB
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https://ideone.com/SdlinK
language:
C (gcc 8.3)
created:
4 years ago
visibility:
secret

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