// In the name of Allah
// Hope is last to die
// Khodaya khodet komak kon
// Let's go
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define pb push_back
#define S second
#define F first
#define mp make_pair
#define smax(x, y) (x) = max((x), (y))
#define smin(x, y) (x) = min((x), (y))
#define all(x) (x).begin(), (x).end()
#define sz(x) ((int)(x).size())
const int maxn = 1e5 + 10, msq = 320 + 10;
const int inf = 1e9 + 7;
int n, m, q, sq, cur[maxn], val[maxn];
pii dp[maxn][msq];
vector<int> adj[maxn], party;
bool mark[maxn];
void calcdp(){
for(int i = 0; i < n; i++){
for(int j = 0; j < sq; j++) dp[i][j] = mp(-1, 0);
}
for(int i = 1; i <= n; i++){
for(int j = 0; j < sq; j++){
pii res = mp(-1, 0);
for(int k = 0; k < sz(adj[i]); k++){
int u = adj[i][k];
while(mark[dp[u][cur[u]].S]) cur[u]++;
if(!dp[u][cur[u]].S) continue;
if(dp[u][cur[u]].F + 1 > res.F) res = mp(dp[u][cur[u]].F + 1, dp[u][cur[u]].S);
}
dp[i][j] = res;
if(res.S) mark[res.S] = 1;
}
for(int j = 0; j < sq; j++){
mark[dp[i][j].S] = 0;
if(dp[i][j].F == -1){
dp[i][j] = mp(0, i);
break;
}
}
for(auto u: adj[i]) cur[u] = 0;
}
}
int get(int v){
for(int i = 1; i <= v; i++){
val[i] = (mark[i] ? -1 : 0);
for(auto u: adj[i]){
if(~val[u]) smax(val[i], val[u] + 1);
}
}
return val[v];
}
int32_t main()
{
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n >> m >> q;
sq = 320;
for(int i = 0; i < m; i++){
int u, v; cin >> u >> v;
adj[v].pb(u);
}
calcdp();
while(q--){
int v, y; cin >> v >> y;
party.clear();
for(int i = 0; i < y; i++){
int x; cin >> x;
mark[x] = 1;
party.pb(x);
}
if(y >= sq) cout << get(v) << '\n';
else{
for(int i = 0; i < sq; i++){
if(!mark[dp[v][i].S]){
cout << dp[v][i].F << '\n';
break;
}
}
}
for(auto u: party) mark[u] = 0;
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4660 KB |
Output is correct |
4 |
Correct |
1 ms |
4668 KB |
Output is correct |
5 |
Correct |
3 ms |
6748 KB |
Output is correct |
6 |
Correct |
4 ms |
6748 KB |
Output is correct |
7 |
Correct |
4 ms |
6748 KB |
Output is correct |
8 |
Correct |
4 ms |
6748 KB |
Output is correct |
9 |
Correct |
4 ms |
6744 KB |
Output is correct |
10 |
Correct |
6 ms |
6708 KB |
Output is correct |
11 |
Correct |
4 ms |
6720 KB |
Output is correct |
12 |
Correct |
4 ms |
6748 KB |
Output is correct |
13 |
Correct |
4 ms |
6744 KB |
Output is correct |
14 |
Correct |
4 ms |
6748 KB |
Output is correct |
15 |
Correct |
4 ms |
6744 KB |
Output is correct |
16 |
Correct |
4 ms |
6748 KB |
Output is correct |
17 |
Correct |
4 ms |
6768 KB |
Output is correct |
18 |
Correct |
4 ms |
6748 KB |
Output is correct |
19 |
Correct |
4 ms |
6748 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4660 KB |
Output is correct |
4 |
Correct |
1 ms |
4668 KB |
Output is correct |
5 |
Correct |
3 ms |
6748 KB |
Output is correct |
6 |
Correct |
4 ms |
6748 KB |
Output is correct |
7 |
Correct |
4 ms |
6748 KB |
Output is correct |
8 |
Correct |
4 ms |
6748 KB |
Output is correct |
9 |
Correct |
4 ms |
6744 KB |
Output is correct |
10 |
Correct |
6 ms |
6708 KB |
Output is correct |
11 |
Correct |
4 ms |
6720 KB |
Output is correct |
12 |
Correct |
4 ms |
6748 KB |
Output is correct |
13 |
Correct |
4 ms |
6744 KB |
Output is correct |
14 |
Correct |
4 ms |
6748 KB |
Output is correct |
15 |
Correct |
4 ms |
6744 KB |
Output is correct |
16 |
Correct |
4 ms |
6748 KB |
Output is correct |
17 |
Correct |
4 ms |
6768 KB |
Output is correct |
18 |
Correct |
4 ms |
6748 KB |
Output is correct |
19 |
Correct |
4 ms |
6748 KB |
Output is correct |
20 |
Correct |
205 ms |
9040 KB |
Output is correct |
21 |
Correct |
199 ms |
9112 KB |
Output is correct |
22 |
Correct |
206 ms |
9224 KB |
Output is correct |
23 |
Correct |
232 ms |
9232 KB |
Output is correct |
24 |
Correct |
411 ms |
266156 KB |
Output is correct |
25 |
Correct |
434 ms |
264948 KB |
Output is correct |
26 |
Correct |
395 ms |
264828 KB |
Output is correct |
27 |
Correct |
362 ms |
265180 KB |
Output is correct |
28 |
Correct |
345 ms |
265168 KB |
Output is correct |
29 |
Correct |
349 ms |
265448 KB |
Output is correct |
30 |
Correct |
368 ms |
265168 KB |
Output is correct |
31 |
Correct |
368 ms |
265352 KB |
Output is correct |
32 |
Correct |
346 ms |
265176 KB |
Output is correct |
33 |
Correct |
319 ms |
264756 KB |
Output is correct |
34 |
Correct |
291 ms |
264868 KB |
Output is correct |
35 |
Correct |
313 ms |
264924 KB |
Output is correct |
36 |
Correct |
331 ms |
264912 KB |
Output is correct |
37 |
Correct |
360 ms |
264688 KB |
Output is correct |
38 |
Correct |
350 ms |
264772 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
4444 KB |
Output is correct |
2 |
Correct |
1 ms |
4444 KB |
Output is correct |
3 |
Correct |
1 ms |
4660 KB |
Output is correct |
4 |
Correct |
1 ms |
4668 KB |
Output is correct |
5 |
Correct |
3 ms |
6748 KB |
Output is correct |
6 |
Correct |
4 ms |
6748 KB |
Output is correct |
7 |
Correct |
4 ms |
6748 KB |
Output is correct |
8 |
Correct |
4 ms |
6748 KB |
Output is correct |
9 |
Correct |
4 ms |
6744 KB |
Output is correct |
10 |
Correct |
6 ms |
6708 KB |
Output is correct |
11 |
Correct |
4 ms |
6720 KB |
Output is correct |
12 |
Correct |
4 ms |
6748 KB |
Output is correct |
13 |
Correct |
4 ms |
6744 KB |
Output is correct |
14 |
Correct |
4 ms |
6748 KB |
Output is correct |
15 |
Correct |
4 ms |
6744 KB |
Output is correct |
16 |
Correct |
4 ms |
6748 KB |
Output is correct |
17 |
Correct |
4 ms |
6768 KB |
Output is correct |
18 |
Correct |
4 ms |
6748 KB |
Output is correct |
19 |
Correct |
4 ms |
6748 KB |
Output is correct |
20 |
Correct |
205 ms |
9040 KB |
Output is correct |
21 |
Correct |
199 ms |
9112 KB |
Output is correct |
22 |
Correct |
206 ms |
9224 KB |
Output is correct |
23 |
Correct |
232 ms |
9232 KB |
Output is correct |
24 |
Correct |
411 ms |
266156 KB |
Output is correct |
25 |
Correct |
434 ms |
264948 KB |
Output is correct |
26 |
Correct |
395 ms |
264828 KB |
Output is correct |
27 |
Correct |
362 ms |
265180 KB |
Output is correct |
28 |
Correct |
345 ms |
265168 KB |
Output is correct |
29 |
Correct |
349 ms |
265448 KB |
Output is correct |
30 |
Correct |
368 ms |
265168 KB |
Output is correct |
31 |
Correct |
368 ms |
265352 KB |
Output is correct |
32 |
Correct |
346 ms |
265176 KB |
Output is correct |
33 |
Correct |
319 ms |
264756 KB |
Output is correct |
34 |
Correct |
291 ms |
264868 KB |
Output is correct |
35 |
Correct |
313 ms |
264924 KB |
Output is correct |
36 |
Correct |
331 ms |
264912 KB |
Output is correct |
37 |
Correct |
360 ms |
264688 KB |
Output is correct |
38 |
Correct |
350 ms |
264772 KB |
Output is correct |
39 |
Correct |
420 ms |
264532 KB |
Output is correct |
40 |
Correct |
421 ms |
264264 KB |
Output is correct |
41 |
Correct |
412 ms |
264532 KB |
Output is correct |
42 |
Correct |
446 ms |
264976 KB |
Output is correct |
43 |
Correct |
395 ms |
264764 KB |
Output is correct |
44 |
Correct |
235 ms |
8220 KB |
Output is correct |
45 |
Correct |
211 ms |
8020 KB |
Output is correct |
46 |
Correct |
210 ms |
7888 KB |
Output is correct |
47 |
Correct |
230 ms |
7772 KB |
Output is correct |
48 |
Correct |
217 ms |
7936 KB |
Output is correct |
49 |
Correct |
384 ms |
265256 KB |
Output is correct |
50 |
Correct |
372 ms |
265016 KB |
Output is correct |
51 |
Correct |
234 ms |
8176 KB |
Output is correct |
52 |
Correct |
204 ms |
7760 KB |
Output is correct |
53 |
Correct |
366 ms |
265332 KB |
Output is correct |
54 |
Correct |
398 ms |
267552 KB |
Output is correct |
55 |
Correct |
349 ms |
266836 KB |
Output is correct |
56 |
Correct |
369 ms |
266584 KB |
Output is correct |
57 |
Correct |
226 ms |
10832 KB |
Output is correct |
58 |
Correct |
222 ms |
10580 KB |
Output is correct |
59 |
Correct |
208 ms |
9552 KB |
Output is correct |
60 |
Correct |
223 ms |
9600 KB |
Output is correct |
61 |
Correct |
392 ms |
267552 KB |
Output is correct |
62 |
Correct |
393 ms |
267156 KB |
Output is correct |
63 |
Correct |
458 ms |
267188 KB |
Output is correct |
64 |
Correct |
446 ms |
267504 KB |
Output is correct |
65 |
Correct |
457 ms |
267340 KB |
Output is correct |
66 |
Correct |
475 ms |
267164 KB |
Output is correct |
67 |
Correct |
362 ms |
266956 KB |
Output is correct |
68 |
Correct |
336 ms |
266572 KB |
Output is correct |
69 |
Correct |
363 ms |
266840 KB |
Output is correct |
70 |
Correct |
374 ms |
267656 KB |
Output is correct |
71 |
Correct |
351 ms |
267332 KB |
Output is correct |
72 |
Correct |
372 ms |
267316 KB |
Output is correct |
73 |
Correct |
392 ms |
267752 KB |
Output is correct |
74 |
Correct |
351 ms |
267292 KB |
Output is correct |
75 |
Correct |
390 ms |
267296 KB |
Output is correct |
76 |
Correct |
377 ms |
268720 KB |
Output is correct |
77 |
Correct |
362 ms |
267364 KB |
Output is correct |
78 |
Correct |
353 ms |
267856 KB |
Output is correct |
79 |
Correct |
266 ms |
10348 KB |
Output is correct |
80 |
Correct |
218 ms |
9808 KB |
Output is correct |
81 |
Correct |
220 ms |
9460 KB |
Output is correct |
82 |
Correct |
379 ms |
268676 KB |
Output is correct |
83 |
Correct |
419 ms |
268636 KB |
Output is correct |
84 |
Correct |
353 ms |
267348 KB |
Output is correct |
85 |
Correct |
395 ms |
267592 KB |
Output is correct |
86 |
Correct |
378 ms |
267860 KB |
Output is correct |
87 |
Correct |
396 ms |
268372 KB |
Output is correct |
88 |
Correct |
221 ms |
10528 KB |
Output is correct |
89 |
Correct |
223 ms |
10324 KB |
Output is correct |
90 |
Correct |
267 ms |
9872 KB |
Output is correct |
91 |
Correct |
208 ms |
9848 KB |
Output is correct |
92 |
Correct |
216 ms |
9296 KB |
Output is correct |
93 |
Correct |
228 ms |
9312 KB |
Output is correct |
94 |
Correct |
355 ms |
268116 KB |
Output is correct |
95 |
Correct |
329 ms |
268080 KB |
Output is correct |
96 |
Correct |
309 ms |
267016 KB |
Output is correct |
97 |
Correct |
316 ms |
266748 KB |
Output is correct |
98 |
Correct |
313 ms |
267440 KB |
Output is correct |
99 |
Correct |
306 ms |
267840 KB |
Output is correct |
100 |
Correct |
250 ms |
10484 KB |
Output is correct |
101 |
Correct |
249 ms |
10496 KB |
Output is correct |
102 |
Correct |
262 ms |
9744 KB |
Output is correct |
103 |
Correct |
232 ms |
9724 KB |
Output is correct |
104 |
Correct |
238 ms |
9296 KB |
Output is correct |
105 |
Correct |
240 ms |
9296 KB |
Output is correct |
106 |
Correct |
401 ms |
268212 KB |
Output is correct |
107 |
Correct |
392 ms |
268328 KB |
Output is correct |
108 |
Correct |
341 ms |
266836 KB |
Output is correct |
109 |
Correct |
387 ms |
266972 KB |
Output is correct |
110 |
Correct |
351 ms |
267600 KB |
Output is correct |
111 |
Correct |
419 ms |
267448 KB |
Output is correct |
112 |
Correct |
223 ms |
10548 KB |
Output is correct |
113 |
Correct |
231 ms |
10368 KB |
Output is correct |
114 |
Correct |
223 ms |
9812 KB |
Output is correct |
115 |
Correct |
208 ms |
9796 KB |
Output is correct |
116 |
Correct |
219 ms |
9468 KB |
Output is correct |
117 |
Correct |
218 ms |
9484 KB |
Output is correct |
118 |
Correct |
347 ms |
266936 KB |
Output is correct |
119 |
Correct |
340 ms |
266536 KB |
Output is correct |
120 |
Correct |
368 ms |
266620 KB |
Output is correct |
121 |
Correct |
350 ms |
267088 KB |
Output is correct |
122 |
Correct |
339 ms |
266572 KB |
Output is correct |
123 |
Correct |
360 ms |
266560 KB |
Output is correct |
124 |
Correct |
377 ms |
266960 KB |
Output is correct |
125 |
Correct |
338 ms |
266728 KB |
Output is correct |
126 |
Correct |
368 ms |
266560 KB |
Output is correct |