답안 #1056323

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1056323	2024-08-13T08:50:06 Z	rainboy	Bring Down the Grading Server (CEOI23_gradingserver)	C	85 / 100	4000 ms	13652 KB

gradingserver

#include <stdio.h>

long long min(long long a, long long b) { return a < b ? a : b; }
long long max(long long a, long long b) { return a > b ? a : b; }

int c;

int solve(long long x1, long long y1, long long x2, long long y2) {
	long long y;

	if (x1 + y1 * c <= 0)
		return 0;
	if (x2 + y2 * c <= 0)
		return 1;
	if (x1 <= 0) {
		if (x2 > 0) {
			if (x2 >= c)
				return 0;
			if (y2 > 0) {
				if (x2 - x1 >= c)
					return 0;
				return !solve(x2, y2, x1 + c, y1 - 1);
			}
			y = -x1 / (c - x2) + 1;
			return y <= y1 && solve(x1 + y * (c - x2), y1 - y, x2, y2);
		} else {
			y = min(-x1 / c + 1, -x2 / c + 1);
			return solve(x1 + y * c, y1 - y, x2 + y * c, y2 - y);
		}
	}
	if (x1 >= x2 && (x1 >= c || y1 > 0))
		return 1;
	if (x2 < c && x1 + y1 * (c - x2) >= c)
		return 1;
	if (!solve(x2 - x1, y2, x1, y1))
		return 1;
	if (x2 >= c || y1 == 0)
		return 0;
	return solve(x1 + c - x2, y1 - 1, x2, y2);
}

int main() {
	int t;

	scanf("%d%d", &c, &t);
	while (t--) {
		long long x1, y1, x2, y2;

		scanf("%lld%lld%lld%lld", &x1, &y2, &x2, &y1), x1 -= y1 * c, x2 -= y2 * c;
		printf(solve(x1, y1, x2, y2) ? "YES\n" : "NO\n");
	}
	return 0;
}

Compilation message

gradingserver.c: In function 'main':
gradingserver.c:45:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |  scanf("%d%d", &c, &t);
      |  ^~~~~~~~~~~~~~~~~~~~~
gradingserver.c:49:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |   scanf("%lld%lld%lld%lld", &x1, &y2, &x2, &y1), x1 -= y1 * c, x2 -= y2 * c;
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #0

0.0 / 0.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct

Subtask #2

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	65 ms	4056 KB	Output is correct
12	Correct	44 ms	3864 KB	Output is correct
13	Correct	94 ms	3924 KB	Output is correct
14	Correct	54 ms	3920 KB	Output is correct
15	Correct	52 ms	4016 KB	Output is correct
16	Correct	46 ms	3952 KB	Output is correct
17	Correct	48 ms	3808 KB	Output is correct
18	Correct	41 ms	3924 KB	Output is correct
19	Correct	47 ms	4688 KB	Output is correct
20	Correct	59 ms	4308 KB	Output is correct
21	Correct	56 ms	4796 KB	Output is correct
22	Correct	50 ms	4700 KB	Output is correct
23	Correct	52 ms	4692 KB	Output is correct
24	Correct	46 ms	4496 KB	Output is correct
25	Correct	48 ms	4436 KB	Output is correct
26	Correct	45 ms	4692 KB	Output is correct
27	Correct	77 ms	4568 KB	Output is correct

Subtask #3

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	111 ms	1104 KB	Output is correct
2	Correct	68 ms	1108 KB	Output is correct
3	Correct	112 ms	1104 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct

Subtask #5

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	65 ms	4056 KB	Output is correct
12	Correct	44 ms	3864 KB	Output is correct
13	Correct	94 ms	3924 KB	Output is correct
14	Correct	54 ms	3920 KB	Output is correct
15	Correct	52 ms	4016 KB	Output is correct
16	Correct	46 ms	3952 KB	Output is correct
17	Correct	48 ms	3808 KB	Output is correct
18	Correct	41 ms	3924 KB	Output is correct
19	Correct	47 ms	4688 KB	Output is correct
20	Correct	59 ms	4308 KB	Output is correct
21	Correct	56 ms	4796 KB	Output is correct
22	Correct	50 ms	4700 KB	Output is correct
23	Correct	52 ms	4692 KB	Output is correct
24	Correct	46 ms	4496 KB	Output is correct
25	Correct	48 ms	4436 KB	Output is correct
26	Correct	45 ms	4692 KB	Output is correct
27	Correct	77 ms	4568 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	43 ms	4088 KB	Output is correct
30	Correct	45 ms	3880 KB	Output is correct
31	Correct	51 ms	4036 KB	Output is correct
32	Correct	74 ms	3924 KB	Output is correct
33	Correct	46 ms	3928 KB	Output is correct
34	Correct	45 ms	3924 KB	Output is correct
35	Correct	43 ms	3924 KB	Output is correct
36	Correct	41 ms	3968 KB	Output is correct
37	Correct	47 ms	4692 KB	Output is correct
38	Correct	48 ms	4436 KB	Output is correct
39	Correct	57 ms	4692 KB	Output is correct
40	Correct	47 ms	4692 KB	Output is correct
41	Correct	51 ms	4692 KB	Output is correct
42	Correct	46 ms	4436 KB	Output is correct
43	Correct	56 ms	4436 KB	Output is correct
44	Correct	77 ms	4696 KB	Output is correct
45	Correct	80 ms	4436 KB	Output is correct
46	Correct	92 ms	5216 KB	Output is correct
47	Correct	50 ms	5632 KB	Output is correct
48	Correct	82 ms	5388 KB	Output is correct
49	Correct	53 ms	5568 KB	Output is correct
50	Correct	54 ms	5716 KB	Output is correct
51	Correct	61 ms	5232 KB	Output is correct
52	Correct	44 ms	4436 KB	Output is correct
53	Correct	48 ms	4692 KB	Output is correct
54	Correct	44 ms	4440 KB	Output is correct
55	Correct	189 ms	5828 KB	Output is correct

Subtask #4

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	65 ms	4056 KB	Output is correct
12	Correct	44 ms	3864 KB	Output is correct
13	Correct	94 ms	3924 KB	Output is correct
14	Correct	54 ms	3920 KB	Output is correct
15	Correct	52 ms	4016 KB	Output is correct
16	Correct	46 ms	3952 KB	Output is correct
17	Correct	48 ms	3808 KB	Output is correct
18	Correct	41 ms	3924 KB	Output is correct
19	Correct	47 ms	4688 KB	Output is correct
20	Correct	59 ms	4308 KB	Output is correct
21	Correct	56 ms	4796 KB	Output is correct
22	Correct	50 ms	4700 KB	Output is correct
23	Correct	52 ms	4692 KB	Output is correct
24	Correct	46 ms	4496 KB	Output is correct
25	Correct	48 ms	4436 KB	Output is correct
26	Correct	45 ms	4692 KB	Output is correct
27	Correct	77 ms	4568 KB	Output is correct
28	Correct	111 ms	1104 KB	Output is correct
29	Correct	68 ms	1108 KB	Output is correct
30	Correct	112 ms	1104 KB	Output is correct
31	Correct	0 ms	344 KB	Output is correct
32	Correct	74 ms	13652 KB	Output is correct
33	Correct	91 ms	12672 KB	Output is correct
34	Correct	82 ms	13428 KB	Output is correct
35	Correct	0 ms	348 KB	Output is correct
36	Correct	0 ms	348 KB	Output is correct
37	Correct	42 ms	3932 KB	Output is correct
38	Correct	43 ms	3924 KB	Output is correct
39	Correct	45 ms	4044 KB	Output is correct
40	Correct	42 ms	3924 KB	Output is correct
41	Correct	44 ms	3808 KB	Output is correct
42	Correct	49 ms	3924 KB	Output is correct
43	Correct	44 ms	3924 KB	Output is correct
44	Correct	42 ms	3924 KB	Output is correct
45	Correct	84 ms	4692 KB	Output is correct
46	Correct	48 ms	4436 KB	Output is correct
47	Correct	76 ms	4764 KB	Output is correct
48	Correct	48 ms	4692 KB	Output is correct
49	Correct	47 ms	4840 KB	Output is correct
50	Correct	82 ms	4468 KB	Output is correct
51	Correct	47 ms	4436 KB	Output is correct
52	Correct	76 ms	4692 KB	Output is correct
53	Correct	45 ms	4652 KB	Output is correct
54	Correct	0 ms	348 KB	Output is correct
55	Correct	58 ms	4692 KB	Output is correct
56	Correct	45 ms	4436 KB	Output is correct
57	Correct	104 ms	5424 KB	Output is correct
58	Correct	80 ms	5716 KB	Output is correct
59	Correct	78 ms	5204 KB	Output is correct
60	Correct	80 ms	12864 KB	Output is correct
61	Correct	84 ms	13112 KB	Output is correct
62	Correct	77 ms	12884 KB	Output is correct
63	Correct	76 ms	13292 KB	Output is correct
64	Correct	102 ms	12628 KB	Output is correct
65	Correct	76 ms	13356 KB	Output is correct
66	Correct	143 ms	5320 KB	Output is correct
67	Correct	165 ms	5476 KB	Output is correct
68	Correct	73 ms	13560 KB	Output is correct
69	Correct	79 ms	12612 KB	Output is correct
70	Correct	124 ms	9304 KB	Output is correct
71	Correct	518 ms	10068 KB	Output is correct
72	Correct	92 ms	12368 KB	Output is correct
73	Correct	487 ms	8120 KB	Output is correct

Subtask #6

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	44 ms	3976 KB	Output is correct
12	Correct	44 ms	3940 KB	Output is correct
13	Correct	44 ms	3940 KB	Output is correct
14	Correct	84 ms	3888 KB	Output is correct
15	Correct	46 ms	3880 KB	Output is correct
16	Correct	82 ms	3936 KB	Output is correct
17	Correct	48 ms	3924 KB	Output is correct
18	Correct	44 ms	3936 KB	Output is correct
19	Correct	67 ms	5972 KB	Output is correct
20	Correct	353 ms	6996 KB	Output is correct
21	Correct	540 ms	6668 KB	Output is correct
22	Correct	679 ms	6996 KB	Output is correct
23	Correct	214 ms	9040 KB	Output is correct
24	Correct	224 ms	9044 KB	Output is correct
25	Correct	155 ms	9040 KB	Output is correct
26	Correct	75 ms	9044 KB	Output is correct
27	Correct	614 ms	8624 KB	Output is correct
28	Correct	1118 ms	8604 KB	Output is correct
29	Correct	377 ms	8276 KB	Output is correct

Subtask #7

0.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	47 ms	1260 KB	Output is correct
3	Correct	49 ms	1220 KB	Output is correct
4	Correct	44 ms	3992 KB	Output is correct
5	Correct	42 ms	3924 KB	Output is correct
6	Correct	45 ms	3924 KB	Output is correct
7	Correct	52 ms	4012 KB	Output is correct
8	Correct	44 ms	3924 KB	Output is correct
9	Correct	78 ms	3924 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	65 ms	4056 KB	Output is correct
12	Correct	44 ms	3864 KB	Output is correct
13	Correct	94 ms	3924 KB	Output is correct
14	Correct	54 ms	3920 KB	Output is correct
15	Correct	52 ms	4016 KB	Output is correct
16	Correct	46 ms	3952 KB	Output is correct
17	Correct	48 ms	3808 KB	Output is correct
18	Correct	41 ms	3924 KB	Output is correct
19	Correct	47 ms	4688 KB	Output is correct
20	Correct	59 ms	4308 KB	Output is correct
21	Correct	56 ms	4796 KB	Output is correct
22	Correct	50 ms	4700 KB	Output is correct
23	Correct	52 ms	4692 KB	Output is correct
24	Correct	46 ms	4496 KB	Output is correct
25	Correct	48 ms	4436 KB	Output is correct
26	Correct	45 ms	4692 KB	Output is correct
27	Correct	77 ms	4568 KB	Output is correct
28	Correct	111 ms	1104 KB	Output is correct
29	Correct	68 ms	1108 KB	Output is correct
30	Correct	112 ms	1104 KB	Output is correct
31	Correct	0 ms	344 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	43 ms	4088 KB	Output is correct
34	Correct	45 ms	3880 KB	Output is correct
35	Correct	51 ms	4036 KB	Output is correct
36	Correct	74 ms	3924 KB	Output is correct
37	Correct	46 ms	3928 KB	Output is correct
38	Correct	45 ms	3924 KB	Output is correct
39	Correct	43 ms	3924 KB	Output is correct
40	Correct	41 ms	3968 KB	Output is correct
41	Correct	47 ms	4692 KB	Output is correct
42	Correct	48 ms	4436 KB	Output is correct
43	Correct	57 ms	4692 KB	Output is correct
44	Correct	47 ms	4692 KB	Output is correct
45	Correct	51 ms	4692 KB	Output is correct
46	Correct	46 ms	4436 KB	Output is correct
47	Correct	56 ms	4436 KB	Output is correct
48	Correct	77 ms	4696 KB	Output is correct
49	Correct	80 ms	4436 KB	Output is correct
50	Correct	92 ms	5216 KB	Output is correct
51	Correct	50 ms	5632 KB	Output is correct
52	Correct	82 ms	5388 KB	Output is correct
53	Correct	53 ms	5568 KB	Output is correct
54	Correct	54 ms	5716 KB	Output is correct
55	Correct	61 ms	5232 KB	Output is correct
56	Correct	44 ms	4436 KB	Output is correct
57	Correct	48 ms	4692 KB	Output is correct
58	Correct	44 ms	4440 KB	Output is correct
59	Correct	189 ms	5828 KB	Output is correct
60	Correct	74 ms	13652 KB	Output is correct
61	Correct	91 ms	12672 KB	Output is correct
62	Correct	82 ms	13428 KB	Output is correct
63	Correct	0 ms	348 KB	Output is correct
64	Correct	0 ms	348 KB	Output is correct
65	Correct	42 ms	3932 KB	Output is correct
66	Correct	43 ms	3924 KB	Output is correct
67	Correct	45 ms	4044 KB	Output is correct
68	Correct	42 ms	3924 KB	Output is correct
69	Correct	44 ms	3808 KB	Output is correct
70	Correct	49 ms	3924 KB	Output is correct
71	Correct	44 ms	3924 KB	Output is correct
72	Correct	42 ms	3924 KB	Output is correct
73	Correct	84 ms	4692 KB	Output is correct
74	Correct	48 ms	4436 KB	Output is correct
75	Correct	76 ms	4764 KB	Output is correct
76	Correct	48 ms	4692 KB	Output is correct
77	Correct	47 ms	4840 KB	Output is correct
78	Correct	82 ms	4468 KB	Output is correct
79	Correct	47 ms	4436 KB	Output is correct
80	Correct	76 ms	4692 KB	Output is correct
81	Correct	45 ms	4652 KB	Output is correct
82	Correct	0 ms	348 KB	Output is correct
83	Correct	58 ms	4692 KB	Output is correct
84	Correct	45 ms	4436 KB	Output is correct
85	Correct	104 ms	5424 KB	Output is correct
86	Correct	80 ms	5716 KB	Output is correct
87	Correct	78 ms	5204 KB	Output is correct
88	Correct	80 ms	12864 KB	Output is correct
89	Correct	84 ms	13112 KB	Output is correct
90	Correct	77 ms	12884 KB	Output is correct
91	Correct	76 ms	13292 KB	Output is correct
92	Correct	102 ms	12628 KB	Output is correct
93	Correct	76 ms	13356 KB	Output is correct
94	Correct	143 ms	5320 KB	Output is correct
95	Correct	165 ms	5476 KB	Output is correct
96	Correct	73 ms	13560 KB	Output is correct
97	Correct	79 ms	12612 KB	Output is correct
98	Correct	124 ms	9304 KB	Output is correct
99	Correct	518 ms	10068 KB	Output is correct
100	Correct	92 ms	12368 KB	Output is correct
101	Correct	487 ms	8120 KB	Output is correct
102	Correct	0 ms	348 KB	Output is correct
103	Correct	44 ms	3976 KB	Output is correct
104	Correct	44 ms	3940 KB	Output is correct
105	Correct	44 ms	3940 KB	Output is correct
106	Correct	84 ms	3888 KB	Output is correct
107	Correct	46 ms	3880 KB	Output is correct
108	Correct	82 ms	3936 KB	Output is correct
109	Correct	48 ms	3924 KB	Output is correct
110	Correct	44 ms	3936 KB	Output is correct
111	Correct	67 ms	5972 KB	Output is correct
112	Correct	353 ms	6996 KB	Output is correct
113	Correct	540 ms	6668 KB	Output is correct
114	Correct	679 ms	6996 KB	Output is correct
115	Correct	214 ms	9040 KB	Output is correct
116	Correct	224 ms	9044 KB	Output is correct
117	Correct	155 ms	9040 KB	Output is correct
118	Correct	75 ms	9044 KB	Output is correct
119	Correct	614 ms	8624 KB	Output is correct
120	Correct	1118 ms	8604 KB	Output is correct
121	Correct	377 ms	8276 KB	Output is correct
122	Correct	74 ms	13652 KB	Output is correct
123	Correct	72 ms	12628 KB	Output is correct
124	Correct	76 ms	13208 KB	Output is correct
125	Correct	0 ms	348 KB	Output is correct
126	Correct	0 ms	348 KB	Output is correct
127	Correct	49 ms	3924 KB	Output is correct
128	Correct	44 ms	3924 KB	Output is correct
129	Correct	44 ms	3968 KB	Output is correct
130	Correct	74 ms	3924 KB	Output is correct
131	Correct	52 ms	3924 KB	Output is correct
132	Correct	49 ms	3924 KB	Output is correct
133	Correct	44 ms	3808 KB	Output is correct
134	Correct	41 ms	3892 KB	Output is correct
135	Correct	58 ms	4580 KB	Output is correct
136	Correct	48 ms	4436 KB	Output is correct
137	Correct	68 ms	4656 KB	Output is correct
138	Correct	82 ms	4732 KB	Output is correct
139	Correct	47 ms	4692 KB	Output is correct
140	Correct	46 ms	4436 KB	Output is correct
141	Correct	51 ms	4436 KB	Output is correct
142	Correct	45 ms	4688 KB	Output is correct
143	Correct	45 ms	4600 KB	Output is correct
144	Correct	0 ms	348 KB	Output is correct
145	Correct	43 ms	4904 KB	Output is correct
146	Correct	45 ms	4440 KB	Output is correct
147	Correct	66 ms	5436 KB	Output is correct
148	Correct	50 ms	5712 KB	Output is correct
149	Correct	112 ms	5324 KB	Output is correct
150	Correct	80 ms	13032 KB	Output is correct
151	Correct	110 ms	13140 KB	Output is correct
152	Correct	79 ms	12884 KB	Output is correct
153	Correct	82 ms	13208 KB	Output is correct
154	Correct	76 ms	12780 KB	Output is correct
155	Correct	75 ms	13140 KB	Output is correct
156	Correct	177 ms	5460 KB	Output is correct
157	Correct	138 ms	5460 KB	Output is correct
158	Correct	73 ms	13560 KB	Output is correct
159	Correct	122 ms	12372 KB	Output is correct
160	Correct	120 ms	9304 KB	Output is correct
161	Correct	487 ms	10068 KB	Output is correct
162	Correct	96 ms	12372 KB	Output is correct
163	Correct	508 ms	8188 KB	Output is correct
164	Correct	57 ms	5460 KB	Output is correct
165	Correct	82 ms	5720 KB	Output is correct
166	Correct	63 ms	5304 KB	Output is correct
167	Correct	44 ms	4436 KB	Output is correct
168	Correct	147 ms	5656 KB	Output is correct
169	Correct	58 ms	6060 KB	Output is correct
170	Correct	345 ms	6896 KB	Output is correct
171	Correct	555 ms	6740 KB	Output is correct
172	Correct	692 ms	6996 KB	Output is correct
173	Correct	216 ms	8900 KB	Output is correct
174	Correct	237 ms	9044 KB	Output is correct
175	Correct	116 ms	9044 KB	Output is correct
176	Correct	109 ms	8908 KB	Output is correct
177	Correct	599 ms	8476 KB	Output is correct
178	Correct	1233 ms	8532 KB	Output is correct
179	Correct	330 ms	8300 KB	Output is correct
180	Correct	110 ms	12884 KB	Output is correct
181	Correct	75 ms	13144 KB	Output is correct
182	Correct	83 ms	12884 KB	Output is correct
183	Correct	88 ms	12640 KB	Output is correct
184	Correct	91 ms	12344 KB	Output is correct
185	Execution timed out	4096 ms	5212 KB	Time limit exceeded
186	Halted	0 ms	0 KB	-