oj.uz

Submission #99240

# Submission time Handle Problem Language Result Execution time Memory
99240 2019-03-01T21:12:21 Z TadijaSebez Bitaro’s Party (JOI18_bitaro) C++11
100 / 100
 1006 ms 259196 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
const int N=100050;
const int inf=1e9+7;
const int S=317;
vector<int> E[N];
int a[N][S][2],sz[N],tmp[S][2],has[N],dp[N];
void Merge(int x, int y)
{
	int tsz=0,i=0,j=0;
	while(i<sz[x] && j<sz[y] && tsz<S)
	{
		if(has[a[x][i][0]]) i++;
		else if(has[a[y][j][0]]) j++;
		else if(a[x][i][1]>a[y][j][1]+1)
		{
			tmp[tsz][0]=a[x][i][0];
			tmp[tsz][1]=a[x][i][1];
			has[tmp[tsz][0]]=1;tsz++;i++;
		}
		else
		{
			tmp[tsz][0]=a[y][j][0];
			tmp[tsz][1]=a[y][j][1]+1;
			has[tmp[tsz][0]]=1;tsz++;j++;
		}
	}
	while(i<sz[x] && tsz<S)
	{
		if(has[a[x][i][0]]) i++;
		else
		{
			tmp[tsz][0]=a[x][i][0];
			tmp[tsz][1]=a[x][i][1];
			has[tmp[tsz][0]]=1;tsz++;i++;
		}
	}
	while(j<sz[y] && tsz<S)
	{
		if(has[a[y][i][0]]) j++;
		else
		{
			tmp[tsz][0]=a[y][j][0];
			tmp[tsz][1]=a[y][j][1]+1;
			has[tmp[tsz][0]]=1;tsz++;j++;
		}
	}
	for(i=0;i<tsz;i++)
	{
		a[x][i][0]=tmp[i][0];
		a[x][i][1]=tmp[i][1];
		has[tmp[i][0]]=0;
	}
	sz[x]=tsz;
}
int main()
{
	int n,m,q,u,v,i;
	scanf("%i %i %i",&n,&m,&q);
	for(i=1;i<=m;i++) scanf("%i %i",&u,&v),E[v].pb(u);
	for(i=1;i<=n;i++)
	{
		a[i][0][0]=i;
		a[i][0][1]=0;
		sz[i]=1;
		for(int j:E[i]) Merge(i,j);
	}
	for(i=1;i<=q;i++)
	{
		int t,y;
		scanf("%i %i",&t,&y);
		vector<int> bad(y);
		for(int &j:bad) scanf("%i",&j),has[j]=1;
		if(y>=S)
		{
			for(int j=1;j<=t;j++)
			{
				if(has[j]) dp[j]=-inf;
				else dp[j]=0;
				for(int k:E[j]) dp[j]=max(dp[j],dp[k]+1);
			}
			if(dp[t]<0) dp[t]=-1;
			printf("%i\n",dp[t]);
		}
		else
		{
			int ans=-1;
			for(int j=0;j<sz[t];j++) if(!has[a[t][j][0]])
			{
				ans=a[t][j][1];
				break;
			}
			printf("%i\n",ans);
		}
		for(int j:bad) has[j]=0;
	}
	return 0;
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:60:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i %i",&n,&m,&q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:61:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1;i<=m;i++) scanf("%i %i",&u,&v),E[v].pb(u);
                    ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~
bitaro.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%i %i",&t,&y);
   ~~~~~^~~~~~~~~~~~~~~
bitaro.cpp:74:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for(int &j:bad) scanf("%i",&j),has[j]=1;
                   ~~~~~~~~~~~~~~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 5 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 7 ms 2688 KB Output is correct
5 Correct 12 ms 5368 KB Output is correct
6 Correct 8 ms 5248 KB Output is correct
7 Correct 9 ms 5248 KB Output is correct
8 Correct 11 ms 5248 KB Output is correct
9 Correct 14 ms 5248 KB Output is correct
10 Correct 13 ms 5248 KB Output is correct
11 Correct 10 ms 5248 KB Output is correct
12 Correct 8 ms 5248 KB Output is correct
13 Correct 10 ms 5248 KB Output is correct
14 Correct 10 ms 5248 KB Output is correct
15 Correct 8 ms 5248 KB Output is correct
16 Correct 10 ms 5248 KB Output is correct
17 Correct 10 ms 5248 KB Output is correct
18 Correct 8 ms 5248 KB Output is correct
19 Correct 11 ms 5268 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 5 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 7 ms 2688 KB Output is correct
5 Correct 12 ms 5368 KB Output is correct
6 Correct 8 ms 5248 KB Output is correct
7 Correct 9 ms 5248 KB Output is correct
8 Correct 11 ms 5248 KB Output is correct
9 Correct 14 ms 5248 KB Output is correct
10 Correct 13 ms 5248 KB Output is correct
11 Correct 10 ms 5248 KB Output is correct
12 Correct 8 ms 5248 KB Output is correct
13 Correct 10 ms 5248 KB Output is correct
14 Correct 10 ms 5248 KB Output is correct
15 Correct 8 ms 5248 KB Output is correct
16 Correct 10 ms 5248 KB Output is correct
17 Correct 10 ms 5248 KB Output is correct
18 Correct 8 ms 5248 KB Output is correct
19 Correct 11 ms 5268 KB Output is correct
20 Correct 417 ms 7992 KB Output is correct
21 Correct 469 ms 8060 KB Output is correct
22 Correct 419 ms 8124 KB Output is correct
23 Correct 477 ms 8032 KB Output is correct
24 Correct 712 ms 257568 KB Output is correct
25 Correct 729 ms 257528 KB Output is correct
26 Correct 695 ms 257528 KB Output is correct
27 Correct 800 ms 258100 KB Output is correct
28 Correct 815 ms 257932 KB Output is correct
29 Correct 750 ms 257784 KB Output is correct
30 Correct 732 ms 257720 KB Output is correct
31 Correct 735 ms 257912 KB Output is correct
32 Correct 876 ms 257724 KB Output is correct
33 Correct 690 ms 257396 KB Output is correct
34 Correct 637 ms 257620 KB Output is correct
35 Correct 654 ms 257500 KB Output is correct
36 Correct 749 ms 257748 KB Output is correct
37 Correct 678 ms 257272 KB Output is correct
38 Correct 701 ms 257280 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 5 ms 2688 KB Output is correct
3 Correct 4 ms 2688 KB Output is correct
4 Correct 7 ms 2688 KB Output is correct
5 Correct 12 ms 5368 KB Output is correct
6 Correct 8 ms 5248 KB Output is correct
7 Correct 9 ms 5248 KB Output is correct
8 Correct 11 ms 5248 KB Output is correct
9 Correct 14 ms 5248 KB Output is correct
10 Correct 13 ms 5248 KB Output is correct
11 Correct 10 ms 5248 KB Output is correct
12 Correct 8 ms 5248 KB Output is correct
13 Correct 10 ms 5248 KB Output is correct
14 Correct 10 ms 5248 KB Output is correct
15 Correct 8 ms 5248 KB Output is correct
16 Correct 10 ms 5248 KB Output is correct
17 Correct 10 ms 5248 KB Output is correct
18 Correct 8 ms 5248 KB Output is correct
19 Correct 11 ms 5268 KB Output is correct
20 Correct 417 ms 7992 KB Output is correct
21 Correct 469 ms 8060 KB Output is correct
22 Correct 419 ms 8124 KB Output is correct
23 Correct 477 ms 8032 KB Output is correct
24 Correct 712 ms 257568 KB Output is correct
25 Correct 729 ms 257528 KB Output is correct
26 Correct 695 ms 257528 KB Output is correct
27 Correct 800 ms 258100 KB Output is correct
28 Correct 815 ms 257932 KB Output is correct
29 Correct 750 ms 257784 KB Output is correct
30 Correct 732 ms 257720 KB Output is correct
31 Correct 735 ms 257912 KB Output is correct
32 Correct 876 ms 257724 KB Output is correct
33 Correct 690 ms 257396 KB Output is correct
34 Correct 637 ms 257620 KB Output is correct
35 Correct 654 ms 257500 KB Output is correct
36 Correct 749 ms 257748 KB Output is correct
37 Correct 678 ms 257272 KB Output is correct
38 Correct 701 ms 257280 KB Output is correct
39 Correct 793 ms 258408 KB Output is correct
40 Correct 712 ms 257412 KB Output is correct
41 Correct 731 ms 257400 KB Output is correct
42 Correct 769 ms 257660 KB Output is correct
43 Correct 672 ms 257784 KB Output is correct
44 Correct 470 ms 9312 KB Output is correct
45 Correct 531 ms 8648 KB Output is correct
46 Correct 445 ms 8320 KB Output is correct
47 Correct 464 ms 8056 KB Output is correct
48 Correct 485 ms 8080 KB Output is correct
49 Correct 848 ms 258460 KB Output is correct
50 Correct 754 ms 257236 KB Output is correct
51 Correct 459 ms 9336 KB Output is correct
52 Correct 413 ms 8152 KB Output is correct
53 Correct 708 ms 258160 KB Output is correct
54 Correct 694 ms 258040 KB Output is correct
55 Correct 711 ms 257268 KB Output is correct
56 Correct 760 ms 257196 KB Output is correct
57 Correct 486 ms 9208 KB Output is correct
58 Correct 481 ms 9212 KB Output is correct
59 Correct 451 ms 8392 KB Output is correct
60 Correct 445 ms 8184 KB Output is correct
61 Correct 920 ms 257656 KB Output is correct
62 Correct 837 ms 257528 KB Output is correct
63 Correct 848 ms 257528 KB Output is correct
64 Correct 1006 ms 257588 KB Output is correct
65 Correct 884 ms 257528 KB Output is correct
66 Correct 875 ms 257400 KB Output is correct
67 Correct 699 ms 257244 KB Output is correct
68 Correct 724 ms 257112 KB Output is correct
69 Correct 776 ms 257308 KB Output is correct
70 Correct 781 ms 257764 KB Output is correct
71 Correct 755 ms 257648 KB Output is correct
72 Correct 893 ms 257784 KB Output is correct
73 Correct 769 ms 257656 KB Output is correct
74 Correct 685 ms 257528 KB Output is correct
75 Correct 747 ms 257744 KB Output is correct
76 Correct 881 ms 259192 KB Output is correct
77 Correct 870 ms 257852 KB Output is correct
78 Correct 731 ms 258296 KB Output is correct
79 Correct 481 ms 9452 KB Output is correct
80 Correct 433 ms 8400 KB Output is correct
81 Correct 438 ms 7988 KB Output is correct
82 Correct 820 ms 259196 KB Output is correct
83 Correct 878 ms 258924 KB Output is correct
84 Correct 784 ms 257784 KB Output is correct
85 Correct 743 ms 257784 KB Output is correct
86 Correct 821 ms 258140 KB Output is correct
87 Correct 788 ms 258352 KB Output is correct
88 Correct 520 ms 9240 KB Output is correct
89 Correct 483 ms 9208 KB Output is correct
90 Correct 409 ms 8396 KB Output is correct
91 Correct 421 ms 8284 KB Output is correct
92 Correct 413 ms 7928 KB Output is correct
93 Correct 423 ms 8056 KB Output is correct
94 Correct 696 ms 258520 KB Output is correct
95 Correct 706 ms 258424 KB Output is correct
96 Correct 615 ms 257372 KB Output is correct
97 Correct 611 ms 257400 KB Output is correct
98 Correct 664 ms 257912 KB Output is correct
99 Correct 584 ms 257576 KB Output is correct
100 Correct 740 ms 9208 KB Output is correct
101 Correct 555 ms 9424 KB Output is correct
102 Correct 522 ms 8248 KB Output is correct
103 Correct 473 ms 8440 KB Output is correct
104 Correct 475 ms 8176 KB Output is correct
105 Correct 463 ms 7956 KB Output is correct
106 Correct 765 ms 258560 KB Output is correct
107 Correct 902 ms 258544 KB Output is correct
108 Correct 665 ms 257452 KB Output is correct
109 Correct 662 ms 257408 KB Output is correct
110 Correct 676 ms 257912 KB Output is correct
111 Correct 716 ms 257832 KB Output is correct
112 Correct 458 ms 9376 KB Output is correct
113 Correct 462 ms 9336 KB Output is correct
114 Correct 408 ms 8388 KB Output is correct
115 Correct 430 ms 8440 KB Output is correct
116 Correct 536 ms 7928 KB Output is correct
117 Correct 437 ms 8084 KB Output is correct
118 Correct 721 ms 257144 KB Output is correct
119 Correct 713 ms 257216 KB Output is correct
120 Correct 700 ms 257116 KB Output is correct
121 Correct 830 ms 257224 KB Output is correct
122 Correct 855 ms 257144 KB Output is correct
123 Correct 768 ms 257144 KB Output is correct
124 Correct 769 ms 257088 KB Output is correct
125 Correct 715 ms 257144 KB Output is correct
126 Correct 665 ms 257048 KB Output is correct