# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
94278 | 2019-01-17T09:36:47 Z | autumn_eel | Bitaro’s Party (JOI18_bitaro) | C++14 | 2000 ms | 31572 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]; set<P>dp[200000]; unordered_map<int,int>mp[200000]; int dp2[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[s].push_back(t); } rep(i,n)dp[i].insert(P(0,i)); int cnt=0; rep(i,n){ for(auto&p:dp[i]){ for(int u:E[i]){ cnt++; int&d=mp[u][p.second]; if(d<=p.first){ dp[u].erase(P(d,p.second)); d=p.first+1; dp[u].insert(P(d,p.second)); } while(dp[u].size()>B)dp[u].erase(dp[u].begin()); } } } rep(i,q){ int t,y;scanf("%d%d",&t,&y);t--; set<int>v; rep(j,y){ int c;scanf("%d",&c);c--; v.insert(c); } if(y<B){ int Max=-1; for(auto p:dp[t]){ if(!v.count(p.second)){ Max=max(Max,p.first); } } printf("%d\n",Max); } else{ rep(i,n){ if(!v.count(i))dp2[i]=0; else dp2[i]=-INF; } rep(i,n){ for(int u:E[i]){ dp2[u]=max(dp2[u],dp2[i]+1); } } printf("%d\n",dp2[t]<0?-1:dp2[t]); } } }
Compilation message
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 24 ms | 25336 KB | Output is correct |
2 | Correct | 25 ms | 25336 KB | Output is correct |
3 | Correct | 25 ms | 25336 KB | Output is correct |
4 | Correct | 24 ms | 25336 KB | Output is correct |
5 | Correct | 35 ms | 27896 KB | Output is correct |
6 | Correct | 42 ms | 27896 KB | Output is correct |
7 | Correct | 38 ms | 27896 KB | Output is correct |
8 | Correct | 38 ms | 29176 KB | Output is correct |
9 | Correct | 45 ms | 29148 KB | Output is correct |
10 | Correct | 44 ms | 29176 KB | Output is correct |
11 | Correct | 47 ms | 29048 KB | Output is correct |
12 | Correct | 43 ms | 28664 KB | Output is correct |
13 | Correct | 48 ms | 29052 KB | Output is correct |
14 | Correct | 37 ms | 27768 KB | Output is correct |
15 | Correct | 37 ms | 27484 KB | Output is correct |
16 | Correct | 39 ms | 27900 KB | Output is correct |
17 | Correct | 39 ms | 28280 KB | Output is correct |
18 | Correct | 39 ms | 27896 KB | Output is correct |
19 | Correct | 39 ms | 28280 KB | Output is correct |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 24 ms | 25336 KB | Output is correct |
2 | Correct | 25 ms | 25336 KB | Output is correct |
3 | Correct | 25 ms | 25336 KB | Output is correct |
4 | Correct | 24 ms | 25336 KB | Output is correct |
5 | Correct | 35 ms | 27896 KB | Output is correct |
6 | Correct | 42 ms | 27896 KB | Output is correct |
7 | Correct | 38 ms | 27896 KB | Output is correct |
8 | Correct | 38 ms | 29176 KB | Output is correct |
9 | Correct | 45 ms | 29148 KB | Output is correct |
10 | Correct | 44 ms | 29176 KB | Output is correct |
11 | Correct | 47 ms | 29048 KB | Output is correct |
12 | Correct | 43 ms | 28664 KB | Output is correct |
13 | Correct | 48 ms | 29052 KB | Output is correct |
14 | Correct | 37 ms | 27768 KB | Output is correct |
15 | Correct | 37 ms | 27484 KB | Output is correct |
16 | Correct | 39 ms | 27900 KB | Output is correct |
17 | Correct | 39 ms | 28280 KB | Output is correct |
18 | Correct | 39 ms | 27896 KB | Output is correct |
19 | Correct | 39 ms | 28280 KB | Output is correct |
20 | Correct | 1906 ms | 31068 KB | Output is correct |
21 | Execution timed out | 2057 ms | 31572 KB | Time limit exceeded |
22 | Halted | 0 ms | 0 KB | - |
# | Verdict | Execution time | Memory | Grader output |
---|---|---|---|---|
1 | Correct | 24 ms | 25336 KB | Output is correct |
2 | Correct | 25 ms | 25336 KB | Output is correct |
3 | Correct | 25 ms | 25336 KB | Output is correct |
4 | Correct | 24 ms | 25336 KB | Output is correct |
5 | Correct | 35 ms | 27896 KB | Output is correct |
6 | Correct | 42 ms | 27896 KB | Output is correct |
7 | Correct | 38 ms | 27896 KB | Output is correct |
8 | Correct | 38 ms | 29176 KB | Output is correct |
9 | Correct | 45 ms | 29148 KB | Output is correct |
10 | Correct | 44 ms | 29176 KB | Output is correct |
11 | Correct | 47 ms | 29048 KB | Output is correct |
12 | Correct | 43 ms | 28664 KB | Output is correct |
13 | Correct | 48 ms | 29052 KB | Output is correct |
14 | Correct | 37 ms | 27768 KB | Output is correct |
15 | Correct | 37 ms | 27484 KB | Output is correct |
16 | Correct | 39 ms | 27900 KB | Output is correct |
17 | Correct | 39 ms | 28280 KB | Output is correct |
18 | Correct | 39 ms | 27896 KB | Output is correct |
19 | Correct | 39 ms | 28280 KB | Output is correct |
20 | Correct | 1906 ms | 31068 KB | Output is correct |
21 | Execution timed out | 2057 ms | 31572 KB | Time limit exceeded |
22 | Halted | 0 ms | 0 KB | - |