답안 #832671

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
832671	2023-08-21T13:33:13 Z	rainboy	Fuel Station (NOI20_fuelstation)	C	100 / 100	221 ms	31296 KB

FuelStation

#include <stdio.h>

#define N	300001
#define N_	(1 << 19)	/* N_ = pow2(ceil(log2(N))) */

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

unsigned int X = 12345;

int rand_() {
	return (X *= 3) >> 1;
}

int xx[N], aa[N], bb[N], ii[N], idx[N], n;

int *vv;

void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;

		while (j < k)
			if (vv[ii[j]] == vv[i_])
				j++;
			else if (vv[ii[j]] < vv[i_]) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		sort(ii, l, i);
		l = k;
	}
}

long long ss[N_ * 2], pp[N_ * 2]; int n_;

void pul(int i) {
	int l = i << 1, r = l | 1;

	ss[i] = ss[l] + ss[r];
	pp[i] = max(pp[l], pp[r] - ss[l]);
}

void build() {
	int i;

	n_ = 1;
	while (n_ < n)
		n_ <<= 1;
	for (i = 0; i < n_; i++)
		if (i < n)
			ss[n_ + i] = aa[ii[i]], pp[n_ + i] = xx[ii[i]];
		else
			ss[n_ + i] = 0, pp[n_ + i] = 0;
	for (i = n_ - 1; i > 0; i--)
		pul(i);
}

void update(int i) {
	ss[i += n_] = 0;
	while (i > 1)
		pul(i >>= 1);
}

int main() {
	int x_, i;

	scanf("%d%d", &n, &x_);
	for (i = 0; i < n; i++)
		scanf("%d%d%d", &xx[i], &aa[i], &bb[i]);
	xx[n] = x_, aa[n] = 0, bb[n] = 0;
	n++;
	for (i = 0; i < n; i++)
		ii[i] = i;
	vv = xx, sort(ii, 0, n);
	for (i = 0; i < n; i++)
		idx[ii[i]] = i;
	build();
	vv = bb, sort(ii, 0, n);
	for (i = 0; i < n; i++) {
		if (pp[1] <= bb[ii[i]]) {
			printf("%lld\n", pp[1]);
			return 0;
		}
		update(idx[ii[i]]);
	}
	printf("%lld\n", pp[1]);
	return 0;
}

Compilation message

FuelStation.c: In function 'main':
FuelStation.c:70:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   70 |  scanf("%d%d", &n, &x_);
      |  ^~~~~~~~~~~~~~~~~~~~~~
FuelStation.c:72:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |   scanf("%d%d%d", &xx[i], &aa[i], &bb[i]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct

Subtask #2

13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	101 ms	22524 KB	Output is correct
2	Correct	100 ms	22456 KB	Output is correct
3	Correct	101 ms	22460 KB	Output is correct
4	Correct	96 ms	22476 KB	Output is correct
5	Correct	127 ms	22464 KB	Output is correct
6	Correct	100 ms	22476 KB	Output is correct
7	Correct	100 ms	22544 KB	Output is correct
8	Correct	100 ms	22436 KB	Output is correct
9	Correct	129 ms	22504 KB	Output is correct
10	Correct	103 ms	22428 KB	Output is correct
11	Correct	100 ms	22544 KB	Output is correct
12	Correct	91 ms	22544 KB	Output is correct
13	Correct	101 ms	22444 KB	Output is correct
14	Correct	100 ms	22504 KB	Output is correct
15	Correct	96 ms	22504 KB	Output is correct
16	Correct	105 ms	22520 KB	Output is correct
17	Correct	96 ms	22508 KB	Output is correct
18	Correct	100 ms	22472 KB	Output is correct
19	Correct	93 ms	22452 KB	Output is correct
20	Correct	100 ms	22504 KB	Output is correct

Subtask #3

17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	3 ms	980 KB	Output is correct
3	Correct	4 ms	980 KB	Output is correct
4	Correct	4 ms	980 KB	Output is correct
5	Correct	4 ms	992 KB	Output is correct
6	Correct	4 ms	980 KB	Output is correct
7	Correct	5 ms	980 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	296 KB	Output is correct
14	Correct	5 ms	1108 KB	Output is correct
15	Correct	5 ms	1108 KB	Output is correct
16	Correct	5 ms	1108 KB	Output is correct
17	Correct	5 ms	1076 KB	Output is correct
18	Correct	5 ms	1108 KB	Output is correct
19	Correct	3 ms	1076 KB	Output is correct
20	Correct	3 ms	1108 KB	Output is correct
21	Correct	3 ms	1108 KB	Output is correct
22	Correct	4 ms	1236 KB	Output is correct
23	Correct	3 ms	1108 KB	Output is correct
24	Correct	3 ms	1108 KB	Output is correct
25	Correct	3 ms	1080 KB	Output is correct

Subtask #4

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	3 ms	980 KB	Output is correct
3	Correct	4 ms	980 KB	Output is correct
4	Correct	4 ms	980 KB	Output is correct
5	Correct	4 ms	992 KB	Output is correct
6	Correct	4 ms	980 KB	Output is correct
7	Correct	5 ms	980 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	0 ms	296 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	296 KB	Output is correct
14	Correct	5 ms	1108 KB	Output is correct
15	Correct	5 ms	1108 KB	Output is correct
16	Correct	5 ms	1108 KB	Output is correct
17	Correct	5 ms	1076 KB	Output is correct
18	Correct	5 ms	1108 KB	Output is correct
19	Correct	3 ms	1076 KB	Output is correct
20	Correct	3 ms	1108 KB	Output is correct
21	Correct	3 ms	1108 KB	Output is correct
22	Correct	4 ms	1236 KB	Output is correct
23	Correct	3 ms	1108 KB	Output is correct
24	Correct	3 ms	1108 KB	Output is correct
25	Correct	3 ms	1080 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	96 ms	26836 KB	Output is correct
28	Correct	106 ms	26616 KB	Output is correct
29	Correct	112 ms	26264 KB	Output is correct
30	Correct	103 ms	26296 KB	Output is correct
31	Correct	115 ms	26876 KB	Output is correct
32	Correct	111 ms	26544 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	292 KB	Output is correct
39	Correct	165 ms	26888 KB	Output is correct
40	Correct	169 ms	26828 KB	Output is correct
41	Correct	180 ms	26888 KB	Output is correct
42	Correct	162 ms	26884 KB	Output is correct
43	Correct	166 ms	26784 KB	Output is correct
44	Correct	115 ms	26316 KB	Output is correct
45	Correct	112 ms	25996 KB	Output is correct
46	Correct	124 ms	26812 KB	Output is correct
47	Correct	83 ms	28392 KB	Output is correct
48	Correct	95 ms	28372 KB	Output is correct
49	Correct	96 ms	26192 KB	Output is correct
50	Correct	93 ms	26488 KB	Output is correct
51	Correct	95 ms	26580 KB	Output is correct
52	Correct	104 ms	26272 KB	Output is correct

Subtask #5

19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	280 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	1 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct

Subtask #6

11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	3 ms	980 KB	Output is correct
18	Correct	4 ms	980 KB	Output is correct
19	Correct	4 ms	980 KB	Output is correct
20	Correct	4 ms	992 KB	Output is correct
21	Correct	4 ms	980 KB	Output is correct
22	Correct	5 ms	980 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	0 ms	296 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	296 KB	Output is correct
29	Correct	5 ms	1108 KB	Output is correct
30	Correct	5 ms	1108 KB	Output is correct
31	Correct	5 ms	1108 KB	Output is correct
32	Correct	5 ms	1076 KB	Output is correct
33	Correct	5 ms	1108 KB	Output is correct
34	Correct	3 ms	1076 KB	Output is correct
35	Correct	3 ms	1108 KB	Output is correct
36	Correct	3 ms	1108 KB	Output is correct
37	Correct	4 ms	1236 KB	Output is correct
38	Correct	3 ms	1108 KB	Output is correct
39	Correct	3 ms	1108 KB	Output is correct
40	Correct	3 ms	1080 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	4 ms	1236 KB	Output is correct
43	Correct	5 ms	1196 KB	Output is correct
44	Correct	5 ms	1236 KB	Output is correct
45	Correct	5 ms	1284 KB	Output is correct
46	Correct	6 ms	1236 KB	Output is correct
47	Correct	5 ms	1288 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	296 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	1 ms	292 KB	Output is correct
54	Correct	6 ms	1236 KB	Output is correct
55	Correct	5 ms	1316 KB	Output is correct
56	Correct	6 ms	1268 KB	Output is correct
57	Correct	5 ms	1312 KB	Output is correct
58	Correct	5 ms	1204 KB	Output is correct
59	Correct	4 ms	1200 KB	Output is correct
60	Correct	4 ms	1304 KB	Output is correct
61	Correct	5 ms	1236 KB	Output is correct
62	Correct	4 ms	1200 KB	Output is correct
63	Correct	5 ms	1200 KB	Output is correct
64	Correct	5 ms	1236 KB	Output is correct
65	Correct	4 ms	1236 KB	Output is correct

Subtask #7

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	101 ms	22524 KB	Output is correct
17	Correct	100 ms	22456 KB	Output is correct
18	Correct	101 ms	22460 KB	Output is correct
19	Correct	96 ms	22476 KB	Output is correct
20	Correct	127 ms	22464 KB	Output is correct
21	Correct	100 ms	22476 KB	Output is correct
22	Correct	100 ms	22544 KB	Output is correct
23	Correct	100 ms	22436 KB	Output is correct
24	Correct	129 ms	22504 KB	Output is correct
25	Correct	103 ms	22428 KB	Output is correct
26	Correct	100 ms	22544 KB	Output is correct
27	Correct	91 ms	22544 KB	Output is correct
28	Correct	101 ms	22444 KB	Output is correct
29	Correct	100 ms	22504 KB	Output is correct
30	Correct	96 ms	22504 KB	Output is correct
31	Correct	105 ms	22520 KB	Output is correct
32	Correct	96 ms	22508 KB	Output is correct
33	Correct	100 ms	22472 KB	Output is correct
34	Correct	93 ms	22452 KB	Output is correct
35	Correct	100 ms	22504 KB	Output is correct
36	Correct	0 ms	212 KB	Output is correct
37	Correct	3 ms	980 KB	Output is correct
38	Correct	4 ms	980 KB	Output is correct
39	Correct	4 ms	980 KB	Output is correct
40	Correct	4 ms	992 KB	Output is correct
41	Correct	4 ms	980 KB	Output is correct
42	Correct	5 ms	980 KB	Output is correct
43	Correct	1 ms	212 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	0 ms	296 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	296 KB	Output is correct
49	Correct	5 ms	1108 KB	Output is correct
50	Correct	5 ms	1108 KB	Output is correct
51	Correct	5 ms	1108 KB	Output is correct
52	Correct	5 ms	1076 KB	Output is correct
53	Correct	5 ms	1108 KB	Output is correct
54	Correct	3 ms	1076 KB	Output is correct
55	Correct	3 ms	1108 KB	Output is correct
56	Correct	3 ms	1108 KB	Output is correct
57	Correct	4 ms	1236 KB	Output is correct
58	Correct	3 ms	1108 KB	Output is correct
59	Correct	3 ms	1108 KB	Output is correct
60	Correct	3 ms	1080 KB	Output is correct
61	Correct	0 ms	212 KB	Output is correct
62	Correct	96 ms	26836 KB	Output is correct
63	Correct	106 ms	26616 KB	Output is correct
64	Correct	112 ms	26264 KB	Output is correct
65	Correct	103 ms	26296 KB	Output is correct
66	Correct	115 ms	26876 KB	Output is correct
67	Correct	111 ms	26544 KB	Output is correct
68	Correct	0 ms	212 KB	Output is correct
69	Correct	1 ms	340 KB	Output is correct
70	Correct	0 ms	212 KB	Output is correct
71	Correct	0 ms	212 KB	Output is correct
72	Correct	0 ms	212 KB	Output is correct
73	Correct	0 ms	292 KB	Output is correct
74	Correct	165 ms	26888 KB	Output is correct
75	Correct	169 ms	26828 KB	Output is correct
76	Correct	180 ms	26888 KB	Output is correct
77	Correct	162 ms	26884 KB	Output is correct
78	Correct	166 ms	26784 KB	Output is correct
79	Correct	115 ms	26316 KB	Output is correct
80	Correct	112 ms	25996 KB	Output is correct
81	Correct	124 ms	26812 KB	Output is correct
82	Correct	83 ms	28392 KB	Output is correct
83	Correct	95 ms	28372 KB	Output is correct
84	Correct	96 ms	26192 KB	Output is correct
85	Correct	93 ms	26488 KB	Output is correct
86	Correct	95 ms	26580 KB	Output is correct
87	Correct	104 ms	26272 KB	Output is correct
88	Correct	0 ms	212 KB	Output is correct
89	Correct	0 ms	212 KB	Output is correct
90	Correct	1 ms	212 KB	Output is correct
91	Correct	0 ms	212 KB	Output is correct
92	Correct	0 ms	212 KB	Output is correct
93	Correct	1 ms	212 KB	Output is correct
94	Correct	0 ms	212 KB	Output is correct
95	Correct	0 ms	212 KB	Output is correct
96	Correct	1 ms	280 KB	Output is correct
97	Correct	0 ms	212 KB	Output is correct
98	Correct	0 ms	212 KB	Output is correct
99	Correct	1 ms	212 KB	Output is correct
100	Correct	0 ms	212 KB	Output is correct
101	Correct	0 ms	212 KB	Output is correct
102	Correct	0 ms	212 KB	Output is correct
103	Correct	0 ms	212 KB	Output is correct
104	Correct	4 ms	1236 KB	Output is correct
105	Correct	5 ms	1196 KB	Output is correct
106	Correct	5 ms	1236 KB	Output is correct
107	Correct	5 ms	1284 KB	Output is correct
108	Correct	6 ms	1236 KB	Output is correct
109	Correct	5 ms	1288 KB	Output is correct
110	Correct	0 ms	212 KB	Output is correct
111	Correct	0 ms	212 KB	Output is correct
112	Correct	0 ms	296 KB	Output is correct
113	Correct	0 ms	212 KB	Output is correct
114	Correct	0 ms	212 KB	Output is correct
115	Correct	1 ms	292 KB	Output is correct
116	Correct	6 ms	1236 KB	Output is correct
117	Correct	5 ms	1316 KB	Output is correct
118	Correct	6 ms	1268 KB	Output is correct
119	Correct	5 ms	1312 KB	Output is correct
120	Correct	5 ms	1204 KB	Output is correct
121	Correct	4 ms	1200 KB	Output is correct
122	Correct	4 ms	1304 KB	Output is correct
123	Correct	5 ms	1236 KB	Output is correct
124	Correct	4 ms	1200 KB	Output is correct
125	Correct	5 ms	1200 KB	Output is correct
126	Correct	5 ms	1236 KB	Output is correct
127	Correct	4 ms	1236 KB	Output is correct
128	Correct	1 ms	340 KB	Output is correct
129	Correct	135 ms	30012 KB	Output is correct
130	Correct	170 ms	30536 KB	Output is correct
131	Correct	193 ms	31228 KB	Output is correct
132	Correct	157 ms	30616 KB	Output is correct
133	Correct	164 ms	30680 KB	Output is correct
134	Correct	162 ms	31228 KB	Output is correct
135	Correct	1 ms	212 KB	Output is correct
136	Correct	1 ms	212 KB	Output is correct
137	Correct	1 ms	212 KB	Output is correct
138	Correct	0 ms	212 KB	Output is correct
139	Correct	0 ms	212 KB	Output is correct
140	Correct	1 ms	212 KB	Output is correct
141	Correct	207 ms	31280 KB	Output is correct
142	Correct	217 ms	30976 KB	Output is correct
143	Correct	201 ms	31284 KB	Output is correct
144	Correct	221 ms	31236 KB	Output is correct
145	Correct	213 ms	31296 KB	Output is correct
146	Correct	202 ms	29520 KB	Output is correct
147	Correct	170 ms	30412 KB	Output is correct
148	Correct	199 ms	29768 KB	Output is correct
149	Correct	130 ms	30536 KB	Output is correct
150	Correct	92 ms	30800 KB	Output is correct
151	Correct	92 ms	30948 KB	Output is correct
152	Correct	132 ms	30720 KB	Output is correct
153	Correct	119 ms	30596 KB	Output is correct
154	Correct	110 ms	30532 KB	Output is correct
155	Correct	132 ms	30532 KB	Output is correct