#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pll pair <ll , ll>
#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
#define mp make_pair
#define X first
#define Y second
#define LB(x) ((x) & -(x))
#define BIT(x , y) (((x) >> (y)) & 1)
#define ll int
const ll MAXN=1e5+10;
const ll SQ=0;
vector <pll> e[MAXN];
vector <ll> in[MAXN];
vector <ll> out[MAXN];
vector <pll> f;
ll w[MAXN];
ll z[MAXN];
ll dp[MAXN];
int main()
{
ios_base :: sync_with_stdio(false);
cin.tie(0);
ll n , m , q;
cin>>n>>m>>q;
for(ll i=1;i<=m;i++)
{
ll v , u;
cin>>v>>u;
out[v].pb(u);
in[u].pb(v);
}
for(ll i=1;i<=n;i++)
{
for(ll j=0;j<in[i].size();j++)
{
ll v=in[i][j];
for(ll u=0;u<e[v].size();u++)
{
f.pb(mp(e[v][u].X+1 , e[v][u].Y));
}
}
sort(f.begin() , f.end() , std::greater<pll>());
for(ll j=0;j<f.size();j++)
{
if (e[i].size()==SQ)
{
break;
}
if (w[f[j].Y]!=i)
{
w[f[j].Y]=i;
e[i].pb(f[j]);
}
}
if (e[i].size()<SQ)
{
e[i].pb(mp(0 , i));
}
f.clear();
}
for(ll i=1;i<=q;i++)
{
ll t , y;
cin>>t>>y;
for(ll j=1;j<=y;j++)
{
ll x;
cin>>x;
z[x]=i;
}
if (y>=SQ)
{
ll res=-1;
for(ll j=t;j>=1;j--)
{
dp[j]=(j==t ? 0 : -1);
for(ll u=0;u<out[j].size();u++)
{
if (out[j][u]<=t && dp[out[j][u]]!=-1)
{
dp[j]=max(dp[j] , dp[out[j][u]]+1);
}
}
if (z[j]!=i)
{
res=max(res , dp[j]);
}
}
cout<<res<<endl;
}
else
{
bool flag=false;
for(ll j=0;j<e[t].size();j++)
{
if (z[e[t][j].Y]!=i)
{
cout<<e[t][j].X<<endl;
flag=true;
break;
}
}
if (!flag)
{
cout<<-1<<endl;
}
}
}
}
Compilation message
bitaro.cpp:21:0: warning: "ll" redefined
#define ll int
bitaro.cpp:5:0: note: this is the location of the previous definition
#define ll long long
bitaro.cpp: In function 'int main()':
bitaro.cpp:55:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ll j=0;j<in[i].size();j++)
~^~~~~~~~~~~~~
bitaro.cpp:59:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ll u=0;u<e[v].size();u++)
~^~~~~~~~~~~~
bitaro.cpp:67:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ll j=0;j<f.size();j++)
~^~~~~~~~~
bitaro.cpp:110:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ll u=0;u<out[j].size();u++)
~^~~~~~~~~~~~~~
bitaro.cpp:130:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(ll j=0;j<e[t].size();j++)
~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
7416 KB |
Output is correct |
2 |
Correct |
7 ms |
7416 KB |
Output is correct |
3 |
Correct |
24 ms |
7416 KB |
Output is correct |
4 |
Correct |
7 ms |
7416 KB |
Output is correct |
5 |
Correct |
7 ms |
7416 KB |
Output is correct |
6 |
Correct |
7 ms |
7416 KB |
Output is correct |
7 |
Correct |
7 ms |
7416 KB |
Output is correct |
8 |
Correct |
8 ms |
7416 KB |
Output is correct |
9 |
Correct |
7 ms |
7544 KB |
Output is correct |
10 |
Correct |
7 ms |
7416 KB |
Output is correct |
11 |
Correct |
7 ms |
7416 KB |
Output is correct |
12 |
Correct |
7 ms |
7544 KB |
Output is correct |
13 |
Correct |
7 ms |
7416 KB |
Output is correct |
14 |
Correct |
7 ms |
7416 KB |
Output is correct |
15 |
Correct |
8 ms |
7416 KB |
Output is correct |
16 |
Correct |
7 ms |
7416 KB |
Output is correct |
17 |
Correct |
8 ms |
7416 KB |
Output is correct |
18 |
Correct |
7 ms |
7416 KB |
Output is correct |
19 |
Correct |
7 ms |
7544 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
7416 KB |
Output is correct |
2 |
Correct |
7 ms |
7416 KB |
Output is correct |
3 |
Correct |
24 ms |
7416 KB |
Output is correct |
4 |
Correct |
7 ms |
7416 KB |
Output is correct |
5 |
Correct |
7 ms |
7416 KB |
Output is correct |
6 |
Correct |
7 ms |
7416 KB |
Output is correct |
7 |
Correct |
7 ms |
7416 KB |
Output is correct |
8 |
Correct |
8 ms |
7416 KB |
Output is correct |
9 |
Correct |
7 ms |
7544 KB |
Output is correct |
10 |
Correct |
7 ms |
7416 KB |
Output is correct |
11 |
Correct |
7 ms |
7416 KB |
Output is correct |
12 |
Correct |
7 ms |
7544 KB |
Output is correct |
13 |
Correct |
7 ms |
7416 KB |
Output is correct |
14 |
Correct |
7 ms |
7416 KB |
Output is correct |
15 |
Correct |
8 ms |
7416 KB |
Output is correct |
16 |
Correct |
7 ms |
7416 KB |
Output is correct |
17 |
Correct |
8 ms |
7416 KB |
Output is correct |
18 |
Correct |
7 ms |
7416 KB |
Output is correct |
19 |
Correct |
7 ms |
7544 KB |
Output is correct |
20 |
Correct |
46 ms |
9848 KB |
Output is correct |
21 |
Correct |
45 ms |
9864 KB |
Output is correct |
22 |
Correct |
42 ms |
9852 KB |
Output is correct |
23 |
Correct |
43 ms |
9848 KB |
Output is correct |
24 |
Correct |
142 ms |
13184 KB |
Output is correct |
25 |
Correct |
136 ms |
13184 KB |
Output is correct |
26 |
Correct |
129 ms |
12904 KB |
Output is correct |
27 |
Correct |
121 ms |
14584 KB |
Output is correct |
28 |
Correct |
96 ms |
14712 KB |
Output is correct |
29 |
Correct |
111 ms |
14712 KB |
Output is correct |
30 |
Correct |
123 ms |
13916 KB |
Output is correct |
31 |
Correct |
126 ms |
13948 KB |
Output is correct |
32 |
Correct |
111 ms |
13660 KB |
Output is correct |
33 |
Correct |
120 ms |
13660 KB |
Output is correct |
34 |
Correct |
138 ms |
14200 KB |
Output is correct |
35 |
Correct |
125 ms |
13688 KB |
Output is correct |
36 |
Correct |
115 ms |
14200 KB |
Output is correct |
37 |
Correct |
117 ms |
13916 KB |
Output is correct |
38 |
Correct |
104 ms |
13816 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
7416 KB |
Output is correct |
2 |
Correct |
7 ms |
7416 KB |
Output is correct |
3 |
Correct |
24 ms |
7416 KB |
Output is correct |
4 |
Correct |
7 ms |
7416 KB |
Output is correct |
5 |
Correct |
7 ms |
7416 KB |
Output is correct |
6 |
Correct |
7 ms |
7416 KB |
Output is correct |
7 |
Correct |
7 ms |
7416 KB |
Output is correct |
8 |
Correct |
8 ms |
7416 KB |
Output is correct |
9 |
Correct |
7 ms |
7544 KB |
Output is correct |
10 |
Correct |
7 ms |
7416 KB |
Output is correct |
11 |
Correct |
7 ms |
7416 KB |
Output is correct |
12 |
Correct |
7 ms |
7544 KB |
Output is correct |
13 |
Correct |
7 ms |
7416 KB |
Output is correct |
14 |
Correct |
7 ms |
7416 KB |
Output is correct |
15 |
Correct |
8 ms |
7416 KB |
Output is correct |
16 |
Correct |
7 ms |
7416 KB |
Output is correct |
17 |
Correct |
8 ms |
7416 KB |
Output is correct |
18 |
Correct |
7 ms |
7416 KB |
Output is correct |
19 |
Correct |
7 ms |
7544 KB |
Output is correct |
20 |
Correct |
46 ms |
9848 KB |
Output is correct |
21 |
Correct |
45 ms |
9864 KB |
Output is correct |
22 |
Correct |
42 ms |
9852 KB |
Output is correct |
23 |
Correct |
43 ms |
9848 KB |
Output is correct |
24 |
Correct |
142 ms |
13184 KB |
Output is correct |
25 |
Correct |
136 ms |
13184 KB |
Output is correct |
26 |
Correct |
129 ms |
12904 KB |
Output is correct |
27 |
Correct |
121 ms |
14584 KB |
Output is correct |
28 |
Correct |
96 ms |
14712 KB |
Output is correct |
29 |
Correct |
111 ms |
14712 KB |
Output is correct |
30 |
Correct |
123 ms |
13916 KB |
Output is correct |
31 |
Correct |
126 ms |
13948 KB |
Output is correct |
32 |
Correct |
111 ms |
13660 KB |
Output is correct |
33 |
Correct |
120 ms |
13660 KB |
Output is correct |
34 |
Correct |
138 ms |
14200 KB |
Output is correct |
35 |
Correct |
125 ms |
13688 KB |
Output is correct |
36 |
Correct |
115 ms |
14200 KB |
Output is correct |
37 |
Correct |
117 ms |
13916 KB |
Output is correct |
38 |
Correct |
104 ms |
13816 KB |
Output is correct |
39 |
Execution timed out |
2054 ms |
13444 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |