oj.uz

Submission #220914

# Submission time Handle Problem Language Result Execution time Memory
220914 2020-04-09T08:59:00 Z patrikpavic2 Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1290 ms 117364 KB 
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>
#include <queue>

#define X first
#define Y second
#define PB push_back

using namespace std;

const int N = 1e5 + 500;
const int INF = 0x3f3f3f3f;
const int K = 100;

typedef pair < int, int > pii;

vector < pii > tko[N];
vector < int > v[N], r[N];
int dis[N], zab[N], n, m, q, uso[N], gdje[N];

priority_queue < pii > Q;

void spoji(int x){
	for(int y : r[x]){
		gdje[y] = 0;
		Q.push({tko[y][0].X, y});
	}
	for(;(!Q.empty()) && tko[x].size() < K;){
		int vrh = Q.top().Y;
		if(!uso[tko[vrh][gdje[vrh]].Y]){
			uso[tko[vrh][gdje[vrh]].Y] = 1;
			tko[x].PB(tko[vrh][gdje[vrh]]);
		}
		Q.pop(); gdje[vrh]++;
		if(gdje[vrh] < (int)tko[vrh].size())
			Q.push({tko[vrh][gdje[vrh]].X, vrh});
	}
	for(;!Q.empty();) Q.pop();
	for(pii &tmp : tko[x])
		uso[tmp.Y] = 0, tmp.X++;
	if(tko[x].size() < K)
		tko[x].PB({0, x});
}

void precompute(){
	for(int i = 1;i <= n;i++)
		spoji(i);
}

int seljacki(int x){
	for(int i = 1;i <= n;i++)
		dis[i] = -INF;
	dis[x] = 0;
	int ret = -1;
	for(int i = x; i ; i--){
		for(int j : v[i])
			dis[i] = max(dis[i], dis[j] + 1);
		if(!zab[i])
			ret = max(ret, dis[i]);
	}
	return ret;
}

int main(){
	scanf("%d%d%d", &n, &m, &q);
	for(;m--;){
		int x, y; scanf("%d%d", &x, &y);
		v[x].PB(y);
		r[y].PB(x);
	}
	precompute();
	for(;q--;){
		int st; scanf("%d", &st);
		int kol; scanf("%d", &kol);
		vector < int > tmp;
		for(;kol--;){
			int x; scanf("%d", &x);
			tmp.PB(x); zab[x] = 1;
		}
		
		if((int)tmp.size() >= K)
			printf("%d\n", seljacki(st));
		else{
			int ret = -1;
			for(pii bla : tko[st])
				if(!zab[bla.Y]) ret = max(ret, bla.X);
			printf("%d\n", ret);
		}
		for(int x : tmp) zab[x] = 0;
	}
	return 0;
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:67:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &m, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:69:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x, y; scanf("%d%d", &x, &y);
             ~~~~~^~~~~~~~~~~~~~~~
bitaro.cpp:75:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int st; scanf("%d", &st);
           ~~~~~^~~~~~~~~~~
bitaro.cpp:76:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int kol; scanf("%d", &kol);
            ~~~~~^~~~~~~~~~~~
bitaro.cpp:79:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int x; scanf("%d", &x);
           ~~~~~^~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 14 ms 8064 KB Output is correct
6 Correct 13 ms 7936 KB Output is correct
7 Correct 12 ms 7808 KB Output is correct
8 Correct 14 ms 8448 KB Output is correct
9 Correct 14 ms 8448 KB Output is correct
10 Correct 15 ms 8448 KB Output is correct
11 Correct 15 ms 8448 KB Output is correct
12 Correct 13 ms 8192 KB Output is correct
13 Correct 15 ms 8448 KB Output is correct
14 Correct 13 ms 8064 KB Output is correct
15 Correct 12 ms 7936 KB Output is correct
16 Correct 13 ms 8064 KB Output is correct
17 Correct 14 ms 8192 KB Output is correct
18 Correct 12 ms 8064 KB Output is correct
19 Correct 14 ms 8192 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 14 ms 8064 KB Output is correct
6 Correct 13 ms 7936 KB Output is correct
7 Correct 12 ms 7808 KB Output is correct
8 Correct 14 ms 8448 KB Output is correct
9 Correct 14 ms 8448 KB Output is correct
10 Correct 15 ms 8448 KB Output is correct
11 Correct 15 ms 8448 KB Output is correct
12 Correct 13 ms 8192 KB Output is correct
13 Correct 15 ms 8448 KB Output is correct
14 Correct 13 ms 8064 KB Output is correct
15 Correct 12 ms 7936 KB Output is correct
16 Correct 13 ms 8064 KB Output is correct
17 Correct 14 ms 8192 KB Output is correct
18 Correct 12 ms 8064 KB Output is correct
19 Correct 14 ms 8192 KB Output is correct
20 Correct 364 ms 10832 KB Output is correct
21 Correct 245 ms 10616 KB Output is correct
22 Correct 355 ms 10616 KB Output is correct
23 Correct 188 ms 10744 KB Output is correct
24 Correct 672 ms 92020 KB Output is correct
25 Correct 704 ms 93456 KB Output is correct
26 Correct 697 ms 93124 KB Output is correct
27 Correct 666 ms 117364 KB Output is correct
28 Correct 672 ms 117364 KB Output is correct
29 Correct 652 ms 117108 KB Output is correct
30 Correct 655 ms 116600 KB Output is correct
31 Correct 680 ms 114804 KB Output is correct
32 Correct 660 ms 116344 KB Output is correct
33 Correct 482 ms 79352 KB Output is correct
34 Correct 481 ms 72180 KB Output is correct
35 Correct 491 ms 78700 KB Output is correct
36 Correct 569 ms 98164 KB Output is correct
37 Correct 575 ms 93688 KB Output is correct
38 Correct 577 ms 98136 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Correct 8 ms 7424 KB Output is correct
5 Correct 14 ms 8064 KB Output is correct
6 Correct 13 ms 7936 KB Output is correct
7 Correct 12 ms 7808 KB Output is correct
8 Correct 14 ms 8448 KB Output is correct
9 Correct 14 ms 8448 KB Output is correct
10 Correct 15 ms 8448 KB Output is correct
11 Correct 15 ms 8448 KB Output is correct
12 Correct 13 ms 8192 KB Output is correct
13 Correct 15 ms 8448 KB Output is correct
14 Correct 13 ms 8064 KB Output is correct
15 Correct 12 ms 7936 KB Output is correct
16 Correct 13 ms 8064 KB Output is correct
17 Correct 14 ms 8192 KB Output is correct
18 Correct 12 ms 8064 KB Output is correct
19 Correct 14 ms 8192 KB Output is correct
20 Correct 364 ms 10832 KB Output is correct
21 Correct 245 ms 10616 KB Output is correct
22 Correct 355 ms 10616 KB Output is correct
23 Correct 188 ms 10744 KB Output is correct
24 Correct 672 ms 92020 KB Output is correct
25 Correct 704 ms 93456 KB Output is correct
26 Correct 697 ms 93124 KB Output is correct
27 Correct 666 ms 117364 KB Output is correct
28 Correct 672 ms 117364 KB Output is correct
29 Correct 652 ms 117108 KB Output is correct
30 Correct 655 ms 116600 KB Output is correct
31 Correct 680 ms 114804 KB Output is correct
32 Correct 660 ms 116344 KB Output is correct
33 Correct 482 ms 79352 KB Output is correct
34 Correct 481 ms 72180 KB Output is correct
35 Correct 491 ms 78700 KB Output is correct
36 Correct 569 ms 98164 KB Output is correct
37 Correct 575 ms 93688 KB Output is correct
38 Correct 577 ms 98136 KB Output is correct
39 Correct 768 ms 92000 KB Output is correct
40 Correct 730 ms 92392 KB Output is correct
41 Correct 1290 ms 93048 KB Output is correct
42 Correct 828 ms 92792 KB Output is correct
43 Correct 706 ms 92280 KB Output is correct
44 Correct 476 ms 11116 KB Output is correct
45 Correct 382 ms 10744 KB Output is correct
46 Correct 468 ms 10616 KB Output is correct
47 Correct 383 ms 10820 KB Output is correct
48 Correct 376 ms 10744 KB Output is correct
49 Correct 748 ms 116984 KB Output is correct
50 Correct 1235 ms 116728 KB Output is correct
51 Correct 324 ms 11256 KB Output is correct
52 Correct 358 ms 10620 KB Output is correct
53 Correct 660 ms 97328 KB Output is correct
54 Correct 664 ms 93052 KB Output is correct
55 Correct 1126 ms 97528 KB Output is correct
56 Correct 1112 ms 93304 KB Output is correct
57 Correct 409 ms 11384 KB Output is correct
58 Correct 423 ms 11000 KB Output is correct
59 Correct 461 ms 10872 KB Output is correct
60 Correct 463 ms 10616 KB Output is correct
61 Correct 758 ms 116596 KB Output is correct
62 Correct 683 ms 97788 KB Output is correct
63 Correct 673 ms 92712 KB Output is correct
64 Correct 996 ms 116600 KB Output is correct
65 Correct 880 ms 97632 KB Output is correct
66 Correct 885 ms 93408 KB Output is correct
67 Correct 1204 ms 116804 KB Output is correct
68 Correct 1110 ms 97980 KB Output is correct
69 Correct 1096 ms 92240 KB Output is correct
70 Correct 695 ms 116984 KB Output is correct
71 Correct 591 ms 97656 KB Output is correct
72 Correct 599 ms 92916 KB Output is correct
73 Correct 692 ms 116856 KB Output is correct
74 Correct 629 ms 97656 KB Output is correct
75 Correct 603 ms 92792 KB Output is correct
76 Correct 758 ms 117308 KB Output is correct
77 Correct 1216 ms 117196 KB Output is correct
78 Correct 673 ms 117168 KB Output is correct
79 Correct 326 ms 11092 KB Output is correct
80 Correct 358 ms 10616 KB Output is correct
81 Correct 259 ms 10744 KB Output is correct
82 Correct 754 ms 116344 KB Output is correct
83 Correct 762 ms 114296 KB Output is correct
84 Correct 1159 ms 116344 KB Output is correct
85 Correct 1194 ms 114168 KB Output is correct
86 Correct 656 ms 116488 KB Output is correct
87 Correct 693 ms 114740 KB Output is correct
88 Correct 402 ms 11000 KB Output is correct
89 Correct 447 ms 11256 KB Output is correct
90 Correct 465 ms 10744 KB Output is correct
91 Correct 489 ms 10832 KB Output is correct
92 Correct 363 ms 10616 KB Output is correct
93 Correct 378 ms 10756 KB Output is correct
94 Correct 566 ms 79096 KB Output is correct
95 Correct 551 ms 71416 KB Output is correct
96 Correct 960 ms 78836 KB Output is correct
97 Correct 958 ms 72592 KB Output is correct
98 Correct 521 ms 79352 KB Output is correct
99 Correct 498 ms 72560 KB Output is correct
100 Correct 290 ms 11000 KB Output is correct
101 Correct 268 ms 11004 KB Output is correct
102 Correct 314 ms 10804 KB Output is correct
103 Correct 275 ms 10652 KB Output is correct
104 Correct 208 ms 10744 KB Output is correct
105 Correct 195 ms 10688 KB Output is correct
106 Correct 681 ms 97784 KB Output is correct
107 Correct 674 ms 93304 KB Output is correct
108 Correct 1094 ms 98168 KB Output is correct
109 Correct 1130 ms 93100 KB Output is correct
110 Correct 610 ms 98592 KB Output is correct
111 Correct 614 ms 93748 KB Output is correct
112 Correct 405 ms 11128 KB Output is correct
113 Correct 439 ms 11000 KB Output is correct
114 Correct 451 ms 10616 KB Output is correct
115 Correct 473 ms 10744 KB Output is correct
116 Correct 342 ms 10744 KB Output is correct
117 Correct 373 ms 10872 KB Output is correct
118 Correct 667 ms 116220 KB Output is correct
119 Correct 595 ms 97484 KB Output is correct
120 Correct 585 ms 92408 KB Output is correct
121 Correct 676 ms 116192 KB Output is correct
122 Correct 585 ms 97016 KB Output is correct
123 Correct 609 ms 92408 KB Output is correct
124 Correct 681 ms 116216 KB Output is correct
125 Correct 598 ms 97528 KB Output is correct
126 Correct 587 ms 92264 KB Output is correct