oj.uz

Submission #51792

# Submission time Handle Problem Language Result Execution time Memory
51792 2018-06-21T08:02:04 Z ainta Bulldozer (JOI17_bulldozer) C++17
100 / 100
 611 ms 31868 KB 
#include<cstdio>
#include<algorithm>
#define SZ 2048
using namespace std;
struct point2 {
	int x, y, i, j;
	bool operator<(const point2 &p)const {
		return (long long)y*p.x  != (long long)p.y*x ? (long long)y*p.x < (long long)p.y*x : i!=p.i?i<p.i:j<p.j;
	}
}P[2010000];
struct point {
	int x, y, c;
	bool operator<(const point &p)const {
		return x != p.x ? x < p.x : y < p.y;
	}
}w[2010];
long long res;
int n,cnt, Loc[2010];
struct Tree {
	long long L[SZ + SZ], R[SZ + SZ], S[SZ + SZ], M[SZ + SZ];
	void Put(int a, int b) {
		a += SZ;
		S[a] = b;
		L[a] = R[a] = M[a] = max(0, b);
		while (a != 1) {
			a >>= 1;
			S[a] = S[a + a] + S[a + a + 1];
			L[a] = max(L[a + a], S[a + a] + L[a + a + 1]);
			R[a] = max(R[a + a + 1], S[a + a + 1] + R[a + a]);
			M[a] = max(max(M[a + a], M[a + a + 1]), R[a + a] + L[a + a + 1]);
		}
	}
}T;
int main() {
	int i, j;
	scanf("%d", &n);
	for (i = 1; i <= n; i++) {
		scanf("%d%d%d", &w[i].x, &w[i].y, &w[i].c);
	}
	sort(w + 1, w + n + 1);
	for (i = 1; i < n; i++) {
		for (j = i + 1; j <= n; j++) {
			int dx = w[j].x - w[i].x, dy = w[j].y - w[i].y;
			if (dx < 0 || (dx == 0 && dy < 0))dx = -dx, dy = -dy;
			P[cnt++] = { dx,dy,i,j };
		}
	}
	for (i = 1; i <= n; i++) {
		Loc[i] = i;
		T.Put(i, w[i].c);
	}
	sort(P, P + cnt);
	res = T.M[1];
	for (i = 0; i < cnt; i++) {
		for (j = i; j < cnt; j++) {
			if ((long long)P[i].x*P[j].y != (long long)P[i].y*P[j].x)break;
			int a = P[j].i, b = P[j].j;
			swap(Loc[a], Loc[b]);
			T.Put(Loc[a], w[a].c);
			T.Put(Loc[b], w[b].c);
		}
		res = max(res, T.M[1]);
		i = j - 1;
	}
	printf("%lld\n", res);
}

Compilation message

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:36:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
bulldozer.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &w[i].x, &w[i].y, &w[i].c);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 444 KB Output is correct
2 Correct 3 ms 512 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 484 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 512 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 412 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 512 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 560 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 408 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 3 ms 384 KB Output is correct
22 Correct 3 ms 512 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 3 ms 504 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 3 ms 384 KB Output is correct

Subtask #3
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 412 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 512 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 560 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 408 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 3 ms 384 KB Output is correct
22 Correct 3 ms 512 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 3 ms 504 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 3 ms 384 KB Output is correct
33 Correct 572 ms 31836 KB Output is correct
34 Correct 557 ms 31836 KB Output is correct
35 Correct 598 ms 31792 KB Output is correct
36 Correct 570 ms 31804 KB Output is correct
37 Correct 562 ms 31796 KB Output is correct
38 Correct 552 ms 31804 KB Output is correct
39 Correct 561 ms 31800 KB Output is correct
40 Correct 551 ms 31796 KB Output is correct
41 Correct 556 ms 31800 KB Output is correct
42 Correct 565 ms 31864 KB Output is correct
43 Correct 562 ms 31864 KB Output is correct
44 Correct 585 ms 31800 KB Output is correct
45 Correct 569 ms 31808 KB Output is correct
46 Correct 571 ms 31804 KB Output is correct
47 Correct 611 ms 31792 KB Output is correct
48 Correct 581 ms 31796 KB Output is correct
49 Correct 547 ms 31736 KB Output is correct
50 Correct 545 ms 31796 KB Output is correct
51 Correct 546 ms 31796 KB Output is correct
52 Correct 552 ms 31792 KB Output is correct
53 Correct 578 ms 31800 KB Output is correct
54 Correct 556 ms 31800 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 412 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 512 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 560 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 408 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 3 ms 384 KB Output is correct
22 Correct 3 ms 512 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 3 ms 384 KB Output is correct
29 Correct 3 ms 384 KB Output is correct
30 Correct 3 ms 504 KB Output is correct
31 Correct 3 ms 512 KB Output is correct
32 Correct 3 ms 384 KB Output is correct
33 Correct 572 ms 31836 KB Output is correct
34 Correct 557 ms 31836 KB Output is correct
35 Correct 598 ms 31792 KB Output is correct
36 Correct 570 ms 31804 KB Output is correct
37 Correct 562 ms 31796 KB Output is correct
38 Correct 552 ms 31804 KB Output is correct
39 Correct 561 ms 31800 KB Output is correct
40 Correct 551 ms 31796 KB Output is correct
41 Correct 556 ms 31800 KB Output is correct
42 Correct 565 ms 31864 KB Output is correct
43 Correct 562 ms 31864 KB Output is correct
44 Correct 585 ms 31800 KB Output is correct
45 Correct 569 ms 31808 KB Output is correct
46 Correct 571 ms 31804 KB Output is correct
47 Correct 611 ms 31792 KB Output is correct
48 Correct 581 ms 31796 KB Output is correct
49 Correct 547 ms 31736 KB Output is correct
50 Correct 545 ms 31796 KB Output is correct
51 Correct 546 ms 31796 KB Output is correct
52 Correct 552 ms 31792 KB Output is correct
53 Correct 578 ms 31800 KB Output is correct
54 Correct 556 ms 31800 KB Output is correct
55 Correct 569 ms 31808 KB Output is correct
56 Correct 560 ms 31792 KB Output is correct
57 Correct 573 ms 31792 KB Output is correct
58 Correct 547 ms 31864 KB Output is correct
59 Correct 546 ms 31796 KB Output is correct
60 Correct 557 ms 31792 KB Output is correct
61 Correct 572 ms 31736 KB Output is correct
62 Correct 580 ms 31792 KB Output is correct
63 Correct 565 ms 31864 KB Output is correct
64 Correct 558 ms 31796 KB Output is correct
65 Correct 582 ms 31736 KB Output is correct
66 Correct 590 ms 31736 KB Output is correct
67 Correct 553 ms 31864 KB Output is correct
68 Correct 579 ms 31796 KB Output is correct
69 Correct 549 ms 31796 KB Output is correct
70 Correct 575 ms 31796 KB Output is correct
71 Correct 546 ms 31864 KB Output is correct
72 Correct 558 ms 31796 KB Output is correct
73 Correct 574 ms 31864 KB Output is correct
74 Correct 566 ms 31792 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 444 KB Output is correct
2 Correct 3 ms 512 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 484 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 512 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 3 ms 412 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 3 ms 512 KB Output is correct
20 Correct 3 ms 384 KB Output is correct
21 Correct 3 ms 560 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 2 ms 384 KB Output is correct
27 Correct 2 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 2 ms 384 KB Output is correct
30 Correct 2 ms 384 KB Output is correct
31 Correct 2 ms 408 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
33 Correct 2 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 3 ms 384 KB Output is correct
37 Correct 3 ms 512 KB Output is correct
38 Correct 3 ms 384 KB Output is correct
39 Correct 3 ms 384 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 3 ms 384 KB Output is correct
42 Correct 3 ms 384 KB Output is correct
43 Correct 3 ms 384 KB Output is correct
44 Correct 3 ms 384 KB Output is correct
45 Correct 3 ms 504 KB Output is correct
46 Correct 3 ms 512 KB Output is correct
47 Correct 3 ms 384 KB Output is correct
48 Correct 572 ms 31836 KB Output is correct
49 Correct 557 ms 31836 KB Output is correct
50 Correct 598 ms 31792 KB Output is correct
51 Correct 570 ms 31804 KB Output is correct
52 Correct 562 ms 31796 KB Output is correct
53 Correct 552 ms 31804 KB Output is correct
54 Correct 561 ms 31800 KB Output is correct
55 Correct 551 ms 31796 KB Output is correct
56 Correct 556 ms 31800 KB Output is correct
57 Correct 565 ms 31864 KB Output is correct
58 Correct 562 ms 31864 KB Output is correct
59 Correct 585 ms 31800 KB Output is correct
60 Correct 569 ms 31808 KB Output is correct
61 Correct 571 ms 31804 KB Output is correct
62 Correct 611 ms 31792 KB Output is correct
63 Correct 581 ms 31796 KB Output is correct
64 Correct 547 ms 31736 KB Output is correct
65 Correct 545 ms 31796 KB Output is correct
66 Correct 546 ms 31796 KB Output is correct
67 Correct 552 ms 31792 KB Output is correct
68 Correct 578 ms 31800 KB Output is correct
69 Correct 556 ms 31800 KB Output is correct
70 Correct 569 ms 31808 KB Output is correct
71 Correct 560 ms 31792 KB Output is correct
72 Correct 573 ms 31792 KB Output is correct
73 Correct 547 ms 31864 KB Output is correct
74 Correct 546 ms 31796 KB Output is correct
75 Correct 557 ms 31792 KB Output is correct
76 Correct 572 ms 31736 KB Output is correct
77 Correct 580 ms 31792 KB Output is correct
78 Correct 565 ms 31864 KB Output is correct
79 Correct 558 ms 31796 KB Output is correct
80 Correct 582 ms 31736 KB Output is correct
81 Correct 590 ms 31736 KB Output is correct
82 Correct 553 ms 31864 KB Output is correct
83 Correct 579 ms 31796 KB Output is correct
84 Correct 549 ms 31796 KB Output is correct
85 Correct 575 ms 31796 KB Output is correct
86 Correct 546 ms 31864 KB Output is correct
87 Correct 558 ms 31796 KB Output is correct
88 Correct 574 ms 31864 KB Output is correct
89 Correct 566 ms 31792 KB Output is correct
90 Correct 565 ms 31864 KB Output is correct
91 Correct 598 ms 31736 KB Output is correct
92 Correct 565 ms 31736 KB Output is correct
93 Correct 589 ms 31800 KB Output is correct
94 Correct 547 ms 31864 KB Output is correct
95 Correct 545 ms 31792 KB Output is correct
96 Correct 549 ms 31864 KB Output is correct
97 Correct 566 ms 31792 KB Output is correct
98 Correct 560 ms 31864 KB Output is correct
99 Correct 571 ms 31744 KB Output is correct
100 Correct 452 ms 31792 KB Output is correct
101 Correct 451 ms 31736 KB Output is correct
102 Correct 453 ms 31836 KB Output is correct
103 Correct 458 ms 31736 KB Output is correct
104 Correct 520 ms 31792 KB Output is correct
105 Correct 489 ms 31792 KB Output is correct
106 Correct 489 ms 31864 KB Output is correct
107 Correct 478 ms 31796 KB Output is correct
108 Correct 467 ms 31796 KB Output is correct
109 Correct 492 ms 31796 KB Output is correct
110 Correct 548 ms 31796 KB Output is correct
111 Correct 542 ms 31792 KB Output is correct
112 Correct 560 ms 31796 KB Output is correct
113 Correct 535 ms 31744 KB Output is correct
114 Correct 576 ms 31864 KB Output is correct
115 Correct 551 ms 31796 KB Output is correct
116 Correct 554 ms 31780 KB Output is correct
117 Correct 545 ms 31792 KB Output is correct
118 Correct 542 ms 31792 KB Output is correct
119 Correct 547 ms 31736 KB Output is correct
120 Correct 2 ms 384 KB Output is correct
121 Correct 2 ms 384 KB Output is correct
122 Correct 562 ms 31804 KB Output is correct
123 Correct 548 ms 31864 KB Output is correct
124 Correct 567 ms 31800 KB Output is correct
125 Correct 567 ms 31864 KB Output is correct
126 Correct 611 ms 31864 KB Output is correct
127 Correct 552 ms 31864 KB Output is correct
128 Correct 545 ms 31800 KB Output is correct
129 Correct 554 ms 31796 KB Output is correct
130 Correct 559 ms 31792 KB Output is correct
131 Correct 559 ms 31736 KB Output is correct
132 Correct 571 ms 31796 KB Output is correct
133 Correct 565 ms 31868 KB Output is correct