oj.uz

Submission #94287

# Submission time Handle Problem Language Result Execution time Memory
94287 2019-01-17T10:12:33 Z autumn_eel Bitaro’s Party (JOI18_bitaro) C++14
100 / 100
 1602 ms 72312 KB 
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define INF 0x3f3f3f3f
using namespace std;
typedef pair<int,int>P;

#define B 40

vector<int>E[200000];
vector<P>dp[200000];
P mp[200000];
int dp2[200000];
bool b[200000];

int main(){
	int n,m,q;cin>>n>>m>>q;
	rep(i,m){
		int s,t;scanf("%d%d",&s,&t);s--;t--;
		E[t].push_back(s);
	}
	rep(i,n)dp[i].push_back(P(0,i));
	rep(i,n)mp[i]=P(-INF,-1);
	rep(i,n){
		for(int u:E[i]){
			for(auto&p:dp[u]){
				if(mp[p.second].second!=i){
					mp[p.second]=P(p.first+1,i);
				}
				else{
					mp[p.second]=max(mp[p.second],P(p.first+1,i));
				}
				b[p.second]=false;
			}
		}
		for(int u:E[i]){
			for(auto&p:dp[u]){
				if(!b[p.second]){
					dp[i].push_back(P(mp[p.second].first,p.second));
					b[p.second]=true;
				}
			}
		}
		sort(dp[i].begin(),dp[i].end(),greater<>());
		while(dp[i].size()>B)dp[i].pop_back();
	}
	memset(b,0,sizeof(b));
	rep(i,q){
		int t,y;scanf("%d%d",&t,&y);t--;
		vector<int>v;
		rep(j,y){
			int c;scanf("%d",&c);c--;
			v.push_back(c);
		}
		if(y<B){
			for(int i:v)b[i]=true;
			for(auto&p:dp[t]){
				if(!b[p.second]){
					printf("%d\n",p.first);
					goto g;
				}
			}
			puts("-1");
			g:;
			for(int i:v)b[i]=false;
		}
		else{
			fill(dp2,dp2+t+1,0);
			for(int i:v)dp2[i]=-INF;
			rep(i,t+1){
				for(int u:E[i]){
					dp2[i]=max(dp2[i],dp2[u]+1);
				}
			}
			printf("%d\n",dp2[t]<0?-1:dp2[t]);
		}
	}
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:18:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int s,t;scanf("%d%d",&s,&t);s--;t--;
           ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:48:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int t,y;scanf("%d%d",&t,&y);t--;
           ~~~~~^~~~~~~~~~~~~~
bitaro.cpp:51:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int c;scanf("%d",&c);c--;
          ~~~~~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9848 KB Output is correct
2 Correct 8 ms 9976 KB Output is correct
3 Correct 8 ms 9976 KB Output is correct
4 Correct 8 ms 9848 KB Output is correct
5 Correct 11 ms 10232 KB Output is correct
6 Correct 11 ms 10360 KB Output is correct
7 Correct 10 ms 10232 KB Output is correct
8 Correct 10 ms 10488 KB Output is correct
9 Correct 10 ms 10460 KB Output is correct
10 Correct 11 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 13 ms 10488 KB Output is correct
14 Correct 10 ms 10360 KB Output is correct
15 Correct 11 ms 10364 KB Output is correct
16 Correct 10 ms 10360 KB Output is correct
17 Correct 10 ms 10360 KB Output is correct
18 Correct 11 ms 10360 KB Output is correct
19 Correct 10 ms 10360 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9848 KB Output is correct
2 Correct 8 ms 9976 KB Output is correct
3 Correct 8 ms 9976 KB Output is correct
4 Correct 8 ms 9848 KB Output is correct
5 Correct 11 ms 10232 KB Output is correct
6 Correct 11 ms 10360 KB Output is correct
7 Correct 10 ms 10232 KB Output is correct
8 Correct 10 ms 10488 KB Output is correct
9 Correct 10 ms 10460 KB Output is correct
10 Correct 11 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 13 ms 10488 KB Output is correct
14 Correct 10 ms 10360 KB Output is correct
15 Correct 11 ms 10364 KB Output is correct
16 Correct 10 ms 10360 KB Output is correct
17 Correct 10 ms 10360 KB Output is correct
18 Correct 11 ms 10360 KB Output is correct
19 Correct 10 ms 10360 KB Output is correct
20 Correct 78 ms 12856 KB Output is correct
21 Correct 77 ms 12852 KB Output is correct
22 Correct 85 ms 12920 KB Output is correct
23 Correct 82 ms 12920 KB Output is correct
24 Correct 385 ms 60664 KB Output is correct
25 Correct 406 ms 59764 KB Output is correct
26 Correct 381 ms 60276 KB Output is correct
27 Correct 248 ms 67672 KB Output is correct
28 Correct 261 ms 67608 KB Output is correct
29 Correct 281 ms 67576 KB Output is correct
30 Correct 288 ms 67580 KB Output is correct
31 Correct 325 ms 69832 KB Output is correct
32 Correct 283 ms 67596 KB Output is correct
33 Correct 278 ms 51444 KB Output is correct
34 Correct 368 ms 61892 KB Output is correct
35 Correct 308 ms 51320 KB Output is correct
36 Correct 294 ms 60044 KB Output is correct
37 Correct 372 ms 62684 KB Output is correct
38 Correct 335 ms 59896 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 9848 KB Output is correct
2 Correct 8 ms 9976 KB Output is correct
3 Correct 8 ms 9976 KB Output is correct
4 Correct 8 ms 9848 KB Output is correct
5 Correct 11 ms 10232 KB Output is correct
6 Correct 11 ms 10360 KB Output is correct
7 Correct 10 ms 10232 KB Output is correct
8 Correct 10 ms 10488 KB Output is correct
9 Correct 10 ms 10460 KB Output is correct
10 Correct 11 ms 10488 KB Output is correct
11 Correct 11 ms 10488 KB Output is correct
12 Correct 11 ms 10488 KB Output is correct
13 Correct 13 ms 10488 KB Output is correct
14 Correct 10 ms 10360 KB Output is correct
15 Correct 11 ms 10364 KB Output is correct
16 Correct 10 ms 10360 KB Output is correct
17 Correct 10 ms 10360 KB Output is correct
18 Correct 11 ms 10360 KB Output is correct
19 Correct 10 ms 10360 KB Output is correct
20 Correct 78 ms 12856 KB Output is correct
21 Correct 77 ms 12852 KB Output is correct
22 Correct 85 ms 12920 KB Output is correct
23 Correct 82 ms 12920 KB Output is correct
24 Correct 385 ms 60664 KB Output is correct
25 Correct 406 ms 59764 KB Output is correct
26 Correct 381 ms 60276 KB Output is correct
27 Correct 248 ms 67672 KB Output is correct
28 Correct 261 ms 67608 KB Output is correct
29 Correct 281 ms 67576 KB Output is correct
30 Correct 288 ms 67580 KB Output is correct
31 Correct 325 ms 69832 KB Output is correct
32 Correct 283 ms 67596 KB Output is correct
33 Correct 278 ms 51444 KB Output is correct
34 Correct 368 ms 61892 KB Output is correct
35 Correct 308 ms 51320 KB Output is correct
36 Correct 294 ms 60044 KB Output is correct
37 Correct 372 ms 62684 KB Output is correct
38 Correct 335 ms 59896 KB Output is correct
39 Correct 462 ms 60668 KB Output is correct
40 Correct 337 ms 58184 KB Output is correct
41 Correct 907 ms 58628 KB Output is correct
42 Correct 489 ms 60168 KB Output is correct
43 Correct 383 ms 59164 KB Output is correct
44 Correct 117 ms 13304 KB Output is correct
45 Correct 96 ms 12920 KB Output is correct
46 Correct 178 ms 13044 KB Output is correct
47 Correct 95 ms 13020 KB Output is correct
48 Correct 81 ms 12920 KB Output is correct
49 Correct 372 ms 67548 KB Output is correct
50 Correct 964 ms 67448 KB Output is correct
51 Correct 123 ms 13304 KB Output is correct
52 Correct 189 ms 12892 KB Output is correct
53 Correct 363 ms 59640 KB Output is correct
54 Correct 490 ms 61160 KB Output is correct
55 Correct 1041 ms 59896 KB Output is correct
56 Correct 1020 ms 60988 KB Output is correct
57 Correct 119 ms 13460 KB Output is correct
58 Correct 118 ms 13432 KB Output is correct
59 Correct 182 ms 13184 KB Output is correct
60 Correct 190 ms 13220 KB Output is correct
61 Correct 360 ms 67452 KB Output is correct
62 Correct 350 ms 59868 KB Output is correct
63 Correct 466 ms 61384 KB Output is correct
64 Correct 452 ms 67364 KB Output is correct
65 Correct 458 ms 59740 KB Output is correct
66 Correct 503 ms 60608 KB Output is correct
67 Correct 583 ms 67484 KB Output is correct
68 Correct 582 ms 59968 KB Output is correct
69 Correct 618 ms 61404 KB Output is correct
70 Correct 291 ms 67276 KB Output is correct
71 Correct 324 ms 59704 KB Output is correct
72 Correct 371 ms 60144 KB Output is correct
73 Correct 333 ms 67192 KB Output is correct
74 Correct 301 ms 59656 KB Output is correct
75 Correct 392 ms 62824 KB Output is correct
76 Correct 396 ms 67252 KB Output is correct
77 Correct 745 ms 67068 KB Output is correct
78 Correct 353 ms 67344 KB Output is correct
79 Correct 123 ms 13176 KB Output is correct
80 Correct 178 ms 12636 KB Output is correct
81 Correct 80 ms 12664 KB Output is correct
82 Correct 328 ms 67284 KB Output is correct
83 Correct 428 ms 70392 KB Output is correct
84 Correct 757 ms 66972 KB Output is correct
85 Correct 849 ms 72312 KB Output is correct
86 Correct 315 ms 67320 KB Output is correct
87 Correct 382 ms 69824 KB Output is correct
88 Correct 121 ms 12892 KB Output is correct
89 Correct 121 ms 13020 KB Output is correct
90 Correct 186 ms 12508 KB Output is correct
91 Correct 164 ms 12528 KB Output is correct
92 Correct 80 ms 12508 KB Output is correct
93 Correct 80 ms 12664 KB Output is correct
94 Correct 294 ms 50820 KB Output is correct
95 Correct 399 ms 63864 KB Output is correct
96 Correct 764 ms 50788 KB Output is correct
97 Correct 839 ms 64168 KB Output is correct
98 Correct 267 ms 51160 KB Output is correct
99 Correct 355 ms 62848 KB Output is correct
100 Correct 123 ms 12792 KB Output is correct
101 Correct 121 ms 12792 KB Output is correct
102 Correct 154 ms 12484 KB Output is correct
103 Correct 158 ms 12460 KB Output is correct
104 Correct 87 ms 12408 KB Output is correct
105 Correct 83 ms 12408 KB Output is correct
106 Correct 335 ms 59040 KB Output is correct
107 Correct 427 ms 61176 KB Output is correct
108 Correct 772 ms 59368 KB Output is correct
109 Correct 911 ms 60472 KB Output is correct
110 Correct 269 ms 59552 KB Output is correct
111 Correct 349 ms 60324 KB Output is correct
112 Correct 116 ms 12744 KB Output is correct
113 Correct 119 ms 12792 KB Output is correct
114 Correct 181 ms 12300 KB Output is correct
115 Correct 159 ms 12280 KB Output is correct
116 Correct 77 ms 12292 KB Output is correct
117 Correct 78 ms 12276 KB Output is correct
118 Correct 318 ms 66552 KB Output is correct
119 Correct 311 ms 59324 KB Output is correct
120 Correct 396 ms 62904 KB Output is correct
121 Correct 276 ms 66296 KB Output is correct
122 Correct 284 ms 58548 KB Output is correct
123 Correct 367 ms 60656 KB Output is correct
124 Correct 1360 ms 66652 KB Output is correct
125 Correct 1334 ms 59176 KB Output is correct
126 Correct 1602 ms 60920 KB Output is correct