답안 #26604 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
26604	2017-07-03T12:43:14 Z	kriii	Bulldozer (JOI17_bulldozer)	C++14	100 / 100	1477 ms	188492 KB

bulldozer

#include <stdio.h>
#include <algorithm>
using namespace std;

long long gcd(long long a, long long b)
{
	return b ? gcd(b, a%b) : a;
}

int N; long long A, B;

struct point{
	int x, y, c, i;
	bool operator <(const point &t) const{
		if (y != t.y) return y < t.y;
		return x < t.x;
	}
}P[2000];
int R[2000];

struct turn{
	turn(){
		dx = dy = 0;
	}
	turn(point a, point b){
		dx = b.x - a.x;
		dy = b.y - a.y;
		long long g = gcd(abs(dx), abs(dy));
		dx /= g;
		dy /= g;
		s = dx * a.x + dy * a.y;
		e = dx * b.x + dy * b.y;
		i = a.i;
		j = b.i;
		tp = type();
	}
	long long dx, dy, s, e;
	int i, j, tp;

	int type() const{
		if (dy > 0 || (dx > 0 && dy == 0)) return 0;
		return 1;
	}
	bool operator <(const turn &t) const{
		if (tp != t.tp) return tp < t.tp;
		if (dy * t.dx != t.dy * dx) return dy * t.dx < t.dy * dx;
		if (e != t.e) return e > t.e;
		return s > t.s;
	};
}T[4000000];

const int Z = 1<<11;

struct node{
	node()
	{
		l = r = s = m = 0;
	}
	node(long long x)
	{
		if (x > 0) l = r = s = m = x;
		else{
			l = r = m = 0;
			s = x;
		}
	}

	long long l,r,s,m;
	
	node operator + (const node &t) const{
		node res;
		res.l = max(l,s+t.l);
		res.r = max(r+t.s,t.r);
		res.s = s + t.s;
		res.m = max({m,t.m,r+t.l});
		return res;
	}
}IT[Z*2];

void up(int x, long long v)
{
	x += Z; IT[x] = node(v); x /= 2;
	while (x){
		IT[x] = IT[x*2] + IT[x*2+1];
		x /= 2;
	}
}

int main()
{
	scanf("%d", &N);

	for (int i=0;i<N;i++){
		scanf("%d %d %d", &P[i].x, &P[i].y, &P[i].c);
		P[i].i = i;
	}
	sort(P, P+N);
	for (int i=0;i<N;i++){
		R[P[i].i] = i;
		IT[i+Z] = node(P[i].c);
	}
	for (int i=Z-1;i>=1;i--) IT[i] = IT[i*2] + IT[i*2+1];

	int c = 0;
	for (int i=0;i<N;i++) for (int j=0;j<N;j++) if (i < j){
		T[c++] = turn(P[i], P[j]);
	}
	sort(T, T+c);

	long long ans = max(0ll,IT[1].m);
	for (int i=0, j=0; i < c; i = j){
		while (j < c && T[i].dx == T[j].dx && T[i].dy == T[j].dy){
			int &x = R[T[j].i];
			int &y = R[T[j].j];
			swap(P[x], P[y]);
			swap(x, y);
			up(x,P[x].c);
			up(y,P[y].c);
			j++;
		}
		ans = max(ans,IT[1].m);
	}
	printf("%lld\n", ans);

	return 0;
}

Compilation message

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:91:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
bulldozer.cpp:94:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &P[i].x, &P[i].y, &P[i].c);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	134 ms	188336 KB	Output is correct
2	Correct	133 ms	188244 KB	Output is correct
3	Correct	142 ms	188256 KB	Output is correct
4	Correct	132 ms	188340 KB	Output is correct
5	Correct	136 ms	188292 KB	Output is correct
6	Correct	132 ms	188232 KB	Output is correct
7	Correct	129 ms	188236 KB	Output is correct
8	Correct	127 ms	188344 KB	Output is correct
9	Correct	141 ms	188256 KB	Output is correct
10	Correct	130 ms	188400 KB	Output is correct
11	Correct	128 ms	188280 KB	Output is correct
12	Correct	130 ms	188328 KB	Output is correct
13	Correct	130 ms	188356 KB	Output is correct
14	Correct	128 ms	188232 KB	Output is correct
15	Correct	128 ms	188280 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	133 ms	188244 KB	Output is correct
2	Correct	131 ms	188252 KB	Output is correct
3	Correct	127 ms	188304 KB	Output is correct
4	Correct	126 ms	188280 KB	Output is correct
5	Correct	130 ms	188280 KB	Output is correct
6	Correct	126 ms	188280 KB	Output is correct
7	Correct	126 ms	188280 KB	Output is correct
8	Correct	131 ms	188328 KB	Output is correct
9	Correct	129 ms	188256 KB	Output is correct
10	Correct	129 ms	188372 KB	Output is correct
11	Correct	141 ms	188280 KB	Output is correct
12	Correct	133 ms	188280 KB	Output is correct
13	Correct	127 ms	188272 KB	Output is correct
14	Correct	127 ms	188280 KB	Output is correct
15	Correct	131 ms	188280 KB	Output is correct
16	Correct	125 ms	188412 KB	Output is correct
17	Correct	125 ms	188252 KB	Output is correct
18	Correct	124 ms	188280 KB	Output is correct
19	Correct	129 ms	188352 KB	Output is correct
20	Correct	127 ms	188280 KB	Output is correct
21	Correct	128 ms	188308 KB	Output is correct
22	Correct	136 ms	188280 KB	Output is correct
23	Correct	128 ms	188408 KB	Output is correct
24	Correct	130 ms	188220 KB	Output is correct
25	Correct	125 ms	188280 KB	Output is correct
26	Correct	125 ms	188248 KB	Output is correct
27	Correct	128 ms	188280 KB	Output is correct
28	Correct	126 ms	188280 KB	Output is correct
29	Correct	126 ms	188280 KB	Output is correct
30	Correct	138 ms	188344 KB	Output is correct
31	Correct	133 ms	188280 KB	Output is correct
32	Correct	134 ms	188300 KB	Output is correct

Subtask #3
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	133 ms	188244 KB	Output is correct
2	Correct	131 ms	188252 KB	Output is correct
3	Correct	127 ms	188304 KB	Output is correct
4	Correct	126 ms	188280 KB	Output is correct
5	Correct	130 ms	188280 KB	Output is correct
6	Correct	126 ms	188280 KB	Output is correct
7	Correct	126 ms	188280 KB	Output is correct
8	Correct	131 ms	188328 KB	Output is correct
9	Correct	129 ms	188256 KB	Output is correct
10	Correct	129 ms	188372 KB	Output is correct
11	Correct	141 ms	188280 KB	Output is correct
12	Correct	133 ms	188280 KB	Output is correct
13	Correct	127 ms	188272 KB	Output is correct
14	Correct	127 ms	188280 KB	Output is correct
15	Correct	131 ms	188280 KB	Output is correct
16	Correct	125 ms	188412 KB	Output is correct
17	Correct	125 ms	188252 KB	Output is correct
18	Correct	124 ms	188280 KB	Output is correct
19	Correct	129 ms	188352 KB	Output is correct
20	Correct	127 ms	188280 KB	Output is correct
21	Correct	128 ms	188308 KB	Output is correct
22	Correct	136 ms	188280 KB	Output is correct
23	Correct	128 ms	188408 KB	Output is correct
24	Correct	130 ms	188220 KB	Output is correct
25	Correct	125 ms	188280 KB	Output is correct
26	Correct	125 ms	188248 KB	Output is correct
27	Correct	128 ms	188280 KB	Output is correct
28	Correct	126 ms	188280 KB	Output is correct
29	Correct	126 ms	188280 KB	Output is correct
30	Correct	138 ms	188344 KB	Output is correct
31	Correct	133 ms	188280 KB	Output is correct
32	Correct	134 ms	188300 KB	Output is correct
33	Correct	1370 ms	188376 KB	Output is correct
34	Correct	1368 ms	188376 KB	Output is correct
35	Correct	1385 ms	188372 KB	Output is correct
36	Correct	1407 ms	188368 KB	Output is correct
37	Correct	1383 ms	188376 KB	Output is correct
38	Correct	1333 ms	188372 KB	Output is correct
39	Correct	1372 ms	188372 KB	Output is correct
40	Correct	1352 ms	188364 KB	Output is correct
41	Correct	1369 ms	188368 KB	Output is correct
42	Correct	1361 ms	188368 KB	Output is correct
43	Correct	1264 ms	188372 KB	Output is correct
44	Correct	1246 ms	188372 KB	Output is correct
45	Correct	1237 ms	188372 KB	Output is correct
46	Correct	1272 ms	188380 KB	Output is correct
47	Correct	1290 ms	188416 KB	Output is correct
48	Correct	1282 ms	188372 KB	Output is correct
49	Correct	1291 ms	188376 KB	Output is correct
50	Correct	1318 ms	188372 KB	Output is correct
51	Correct	1278 ms	188372 KB	Output is correct
52	Correct	1249 ms	188392 KB	Output is correct
53	Correct	1256 ms	188376 KB	Output is correct
54	Correct	1259 ms	188376 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	133 ms	188244 KB	Output is correct
2	Correct	131 ms	188252 KB	Output is correct
3	Correct	127 ms	188304 KB	Output is correct
4	Correct	126 ms	188280 KB	Output is correct
5	Correct	130 ms	188280 KB	Output is correct
6	Correct	126 ms	188280 KB	Output is correct
7	Correct	126 ms	188280 KB	Output is correct
8	Correct	131 ms	188328 KB	Output is correct
9	Correct	129 ms	188256 KB	Output is correct
10	Correct	129 ms	188372 KB	Output is correct
11	Correct	141 ms	188280 KB	Output is correct
12	Correct	133 ms	188280 KB	Output is correct
13	Correct	127 ms	188272 KB	Output is correct
14	Correct	127 ms	188280 KB	Output is correct
15	Correct	131 ms	188280 KB	Output is correct
16	Correct	125 ms	188412 KB	Output is correct
17	Correct	125 ms	188252 KB	Output is correct
18	Correct	124 ms	188280 KB	Output is correct
19	Correct	129 ms	188352 KB	Output is correct
20	Correct	127 ms	188280 KB	Output is correct
21	Correct	128 ms	188308 KB	Output is correct
22	Correct	136 ms	188280 KB	Output is correct
23	Correct	128 ms	188408 KB	Output is correct
24	Correct	130 ms	188220 KB	Output is correct
25	Correct	125 ms	188280 KB	Output is correct
26	Correct	125 ms	188248 KB	Output is correct
27	Correct	128 ms	188280 KB	Output is correct
28	Correct	126 ms	188280 KB	Output is correct
29	Correct	126 ms	188280 KB	Output is correct
30	Correct	138 ms	188344 KB	Output is correct
31	Correct	133 ms	188280 KB	Output is correct
32	Correct	134 ms	188300 KB	Output is correct
33	Correct	1370 ms	188376 KB	Output is correct
34	Correct	1368 ms	188376 KB	Output is correct
35	Correct	1385 ms	188372 KB	Output is correct
36	Correct	1407 ms	188368 KB	Output is correct
37	Correct	1383 ms	188376 KB	Output is correct
38	Correct	1333 ms	188372 KB	Output is correct
39	Correct	1372 ms	188372 KB	Output is correct
40	Correct	1352 ms	188364 KB	Output is correct
41	Correct	1369 ms	188368 KB	Output is correct
42	Correct	1361 ms	188368 KB	Output is correct
43	Correct	1264 ms	188372 KB	Output is correct
44	Correct	1246 ms	188372 KB	Output is correct
45	Correct	1237 ms	188372 KB	Output is correct
46	Correct	1272 ms	188380 KB	Output is correct
47	Correct	1290 ms	188416 KB	Output is correct
48	Correct	1282 ms	188372 KB	Output is correct
49	Correct	1291 ms	188376 KB	Output is correct
50	Correct	1318 ms	188372 KB	Output is correct
51	Correct	1278 ms	188372 KB	Output is correct
52	Correct	1249 ms	188392 KB	Output is correct
53	Correct	1256 ms	188376 KB	Output is correct
54	Correct	1259 ms	188376 KB	Output is correct
55	Correct	1437 ms	188376 KB	Output is correct
56	Correct	1336 ms	188376 KB	Output is correct
57	Correct	1358 ms	188376 KB	Output is correct
58	Correct	1409 ms	188368 KB	Output is correct
59	Correct	1441 ms	188368 KB	Output is correct
60	Correct	1419 ms	188368 KB	Output is correct
61	Correct	1445 ms	188372 KB	Output is correct
62	Correct	1375 ms	188372 KB	Output is correct
63	Correct	1354 ms	188368 KB	Output is correct
64	Correct	1358 ms	188372 KB	Output is correct
65	Correct	1338 ms	188372 KB	Output is correct
66	Correct	1342 ms	188372 KB	Output is correct
67	Correct	1350 ms	188368 KB	Output is correct
68	Correct	1368 ms	188376 KB	Output is correct
69	Correct	1358 ms	188380 KB	Output is correct
70	Correct	1361 ms	188368 KB	Output is correct
71	Correct	1395 ms	188480 KB	Output is correct
72	Correct	1373 ms	188368 KB	Output is correct
73	Correct	1363 ms	188372 KB	Output is correct
74	Correct	1361 ms	188368 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	134 ms	188336 KB	Output is correct
2	Correct	133 ms	188244 KB	Output is correct
3	Correct	142 ms	188256 KB	Output is correct
4	Correct	132 ms	188340 KB	Output is correct
5	Correct	136 ms	188292 KB	Output is correct
6	Correct	132 ms	188232 KB	Output is correct
7	Correct	129 ms	188236 KB	Output is correct
8	Correct	127 ms	188344 KB	Output is correct
9	Correct	141 ms	188256 KB	Output is correct
10	Correct	130 ms	188400 KB	Output is correct
11	Correct	128 ms	188280 KB	Output is correct
12	Correct	130 ms	188328 KB	Output is correct
13	Correct	130 ms	188356 KB	Output is correct
14	Correct	128 ms	188232 KB	Output is correct
15	Correct	128 ms	188280 KB	Output is correct
16	Correct	133 ms	188244 KB	Output is correct
17	Correct	131 ms	188252 KB	Output is correct
18	Correct	127 ms	188304 KB	Output is correct
19	Correct	126 ms	188280 KB	Output is correct
20	Correct	130 ms	188280 KB	Output is correct
21	Correct	126 ms	188280 KB	Output is correct
22	Correct	126 ms	188280 KB	Output is correct
23	Correct	131 ms	188328 KB	Output is correct
24	Correct	129 ms	188256 KB	Output is correct
25	Correct	129 ms	188372 KB	Output is correct
26	Correct	141 ms	188280 KB	Output is correct
27	Correct	133 ms	188280 KB	Output is correct
28	Correct	127 ms	188272 KB	Output is correct
29	Correct	127 ms	188280 KB	Output is correct
30	Correct	131 ms	188280 KB	Output is correct
31	Correct	125 ms	188412 KB	Output is correct
32	Correct	125 ms	188252 KB	Output is correct
33	Correct	124 ms	188280 KB	Output is correct
34	Correct	129 ms	188352 KB	Output is correct
35	Correct	127 ms	188280 KB	Output is correct
36	Correct	128 ms	188308 KB	Output is correct
37	Correct	136 ms	188280 KB	Output is correct
38	Correct	128 ms	188408 KB	Output is correct
39	Correct	130 ms	188220 KB	Output is correct
40	Correct	125 ms	188280 KB	Output is correct
41	Correct	125 ms	188248 KB	Output is correct
42	Correct	128 ms	188280 KB	Output is correct
43	Correct	126 ms	188280 KB	Output is correct
44	Correct	126 ms	188280 KB	Output is correct
45	Correct	138 ms	188344 KB	Output is correct
46	Correct	133 ms	188280 KB	Output is correct
47	Correct	134 ms	188300 KB	Output is correct
48	Correct	1370 ms	188376 KB	Output is correct
49	Correct	1368 ms	188376 KB	Output is correct
50	Correct	1385 ms	188372 KB	Output is correct
51	Correct	1407 ms	188368 KB	Output is correct
52	Correct	1383 ms	188376 KB	Output is correct
53	Correct	1333 ms	188372 KB	Output is correct
54	Correct	1372 ms	188372 KB	Output is correct
55	Correct	1352 ms	188364 KB	Output is correct
56	Correct	1369 ms	188368 KB	Output is correct
57	Correct	1361 ms	188368 KB	Output is correct
58	Correct	1264 ms	188372 KB	Output is correct
59	Correct	1246 ms	188372 KB	Output is correct
60	Correct	1237 ms	188372 KB	Output is correct
61	Correct	1272 ms	188380 KB	Output is correct
62	Correct	1290 ms	188416 KB	Output is correct
63	Correct	1282 ms	188372 KB	Output is correct
64	Correct	1291 ms	188376 KB	Output is correct
65	Correct	1318 ms	188372 KB	Output is correct
66	Correct	1278 ms	188372 KB	Output is correct
67	Correct	1249 ms	188392 KB	Output is correct
68	Correct	1256 ms	188376 KB	Output is correct
69	Correct	1259 ms	188376 KB	Output is correct
70	Correct	1437 ms	188376 KB	Output is correct
71	Correct	1336 ms	188376 KB	Output is correct
72	Correct	1358 ms	188376 KB	Output is correct
73	Correct	1409 ms	188368 KB	Output is correct
74	Correct	1441 ms	188368 KB	Output is correct
75	Correct	1419 ms	188368 KB	Output is correct
76	Correct	1445 ms	188372 KB	Output is correct
77	Correct	1375 ms	188372 KB	Output is correct
78	Correct	1354 ms	188368 KB	Output is correct
79	Correct	1358 ms	188372 KB	Output is correct
80	Correct	1338 ms	188372 KB	Output is correct
81	Correct	1342 ms	188372 KB	Output is correct
82	Correct	1350 ms	188368 KB	Output is correct
83	Correct	1368 ms	188376 KB	Output is correct
84	Correct	1358 ms	188380 KB	Output is correct
85	Correct	1361 ms	188368 KB	Output is correct
86	Correct	1395 ms	188480 KB	Output is correct
87	Correct	1373 ms	188368 KB	Output is correct
88	Correct	1363 ms	188372 KB	Output is correct
89	Correct	1361 ms	188368 KB	Output is correct
90	Correct	1379 ms	188372 KB	Output is correct
91	Correct	1390 ms	188372 KB	Output is correct
92	Correct	1357 ms	188372 KB	Output is correct
93	Correct	1366 ms	188372 KB	Output is correct
94	Correct	1420 ms	188364 KB	Output is correct
95	Correct	1477 ms	188372 KB	Output is correct
96	Correct	1383 ms	188384 KB	Output is correct
97	Correct	1370 ms	188416 KB	Output is correct
98	Correct	1382 ms	188420 KB	Output is correct
99	Correct	1361 ms	188408 KB	Output is correct
100	Correct	847 ms	188404 KB	Output is correct
101	Correct	899 ms	188396 KB	Output is correct
102	Correct	820 ms	188392 KB	Output is correct
103	Correct	827 ms	188388 KB	Output is correct
104	Correct	836 ms	188476 KB	Output is correct
105	Correct	915 ms	188388 KB	Output is correct
106	Correct	912 ms	188408 KB	Output is correct
107	Correct	899 ms	188408 KB	Output is correct
108	Correct	926 ms	188280 KB	Output is correct
109	Correct	935 ms	188420 KB	Output is correct
110	Correct	1083 ms	188392 KB	Output is correct
111	Correct	1075 ms	188384 KB	Output is correct
112	Correct	1142 ms	188380 KB	Output is correct
113	Correct	1068 ms	188388 KB	Output is correct
114	Correct	1059 ms	188384 KB	Output is correct
115	Correct	1080 ms	188388 KB	Output is correct
116	Correct	1070 ms	188380 KB	Output is correct
117	Correct	1089 ms	188372 KB	Output is correct
118	Correct	1069 ms	188372 KB	Output is correct
119	Correct	1058 ms	188372 KB	Output is correct
120	Correct	140 ms	188352 KB	Output is correct
121	Correct	143 ms	188272 KB	Output is correct
122	Correct	1089 ms	188380 KB	Output is correct
123	Correct	1061 ms	188376 KB	Output is correct
124	Correct	1074 ms	188372 KB	Output is correct
125	Correct	1108 ms	188364 KB	Output is correct
126	Correct	1095 ms	188372 KB	Output is correct
127	Correct	1097 ms	188492 KB	Output is correct
128	Correct	1099 ms	188376 KB	Output is correct
129	Correct	1119 ms	188280 KB	Output is correct
130	Correct	1112 ms	188280 KB	Output is correct
131	Correct	1103 ms	188280 KB	Output is correct
132	Correct	1170 ms	188452 KB	Output is correct
133	Correct	1128 ms	188368 KB	Output is correct

답안 #26604

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 20.0 / 20.0

Subtask #3 35.0 / 35.0

Subtask #4 20.0 / 20.0

Subtask #5 20.0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
20.0 / 20.0

Subtask #3
35.0 / 35.0

Subtask #4
20.0 / 20.0

Subtask #5
20.0 / 20.0