#include <bits/stdc++.h>
using namespace std;
const int BACKET = 60;
int N, M, Q, A[1 << 18], B[1 << 18], dp[1 << 18];
vector<int>X[1 << 18], Y[1 << 18];
vector<pair<int, int>> vec1;
pair<int, int> G[1 << 17][120], I[12000000]; int SZ[1 << 17];
bool used[1 << 18];
// --------------------------- 平方分割のそれぞれの解法 --------------------
int melee_solve(int pos, vector<int>vec) {
for (int i = 0; i < (int)vec.size(); i++) used[vec[i]] = true;
int maxn = -1;
for (int i = 0; i < SZ[pos]; i++) {
if (used[G[pos][i].second] == false) { maxn = max(maxn, G[pos][i].first); break; }
}
for (int i = 0; i < (int)vec.size(); i++) used[vec[i]] = false;
return maxn;
}
int ranged_solve(int pos, vector<int>vec) {
for (int i = 1; i <= N; i++) dp[i] = 0;
for (int i = 0; i < (int)vec.size(); i++) dp[vec[i]] = -1000000;
for (int i = 0; i < M; i++) {
dp[B[i]] = max(dp[B[i]], dp[A[i]] + 1);
}
return max(-1, dp[pos]);
}
void init() {
for (int i = 1; i <= N; i++) {
int cntv = 0, cnts = 0;
for (int pos : Y[i]) {
for (int k = 0; k < SZ[pos]; k++) {
I[cntv] = make_pair(G[pos][k].first + 1, G[pos][k].second); cntv++;
}
}
I[cntv] = make_pair(0, i); cntv++;
sort(I, I + cntv, greater<pair<int, int>>());
for (int j = 0; j < cntv; j++) {
if (used[I[j].second] == false) { used[I[j].second] = true; G[i][cnts] = I[j]; cnts++; }
if (cnts >= BACKET) break;
}
SZ[i] = cnts;
for (int j = 0; j < cntv; j++) used[I[j].second] = false;
}
}
int main(){
//FILE *in = freopen("in1.txt", "r", stdin);
//FILE *out = freopen("out1.txt", "w", stdout);
scanf("%d%d%d", &N, &M, &Q);
for (int i = 0; i < M; i++) {
scanf("%d%d", &A[i], &B[i]);
X[A[i]].push_back(B[i]);
Y[B[i]].push_back(A[i]);
vec1.push_back(make_pair(A[i], B[i]));
}
sort(vec1.begin(), vec1.end());
for (int i = 0; i < M; i++) {
A[i] = vec1[i].first;
B[i] = vec1[i].second;
}
init();
for (int i = 1; i <= Q; i++) {
int P, S, C; vector<int>vec1;
scanf("%d%d", &P, &S);
for (int j = 0; j < S; j++) {
scanf("%d", &C); vec1.push_back(C);
}
int ans = 0;
if (S < BACKET) ans = melee_solve(P, vec1);
else ans = ranged_solve(P, vec1);
printf("%d\n", ans);
}
return 0;
}
Compilation message
bitaro.cpp: In function 'int main()':
bitaro.cpp:58:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d", &N, &M, &Q);
~~~~~^~~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:60:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &A[i], &B[i]);
~~~~~^~~~~~~~~~~~~~~~~~~~~~
bitaro.cpp:75:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &P, &S);
~~~~~^~~~~~~~~~~~~~~~
bitaro.cpp:77:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &C); vec1.push_back(C);
~~~~~^~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12672 KB |
Output is correct |
2 |
Correct |
15 ms |
12672 KB |
Output is correct |
3 |
Correct |
15 ms |
12672 KB |
Output is correct |
4 |
Correct |
14 ms |
12672 KB |
Output is correct |
5 |
Correct |
17 ms |
13696 KB |
Output is correct |
6 |
Correct |
20 ms |
13696 KB |
Output is correct |
7 |
Correct |
17 ms |
13696 KB |
Output is correct |
8 |
Correct |
17 ms |
13696 KB |
Output is correct |
9 |
Correct |
17 ms |
13824 KB |
Output is correct |
10 |
Correct |
20 ms |
13696 KB |
Output is correct |
11 |
Correct |
19 ms |
13688 KB |
Output is correct |
12 |
Correct |
18 ms |
13696 KB |
Output is correct |
13 |
Correct |
23 ms |
13680 KB |
Output is correct |
14 |
Correct |
21 ms |
13680 KB |
Output is correct |
15 |
Correct |
19 ms |
13824 KB |
Output is correct |
16 |
Correct |
20 ms |
13824 KB |
Output is correct |
17 |
Correct |
20 ms |
13696 KB |
Output is correct |
18 |
Correct |
17 ms |
13696 KB |
Output is correct |
19 |
Correct |
19 ms |
13668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12672 KB |
Output is correct |
2 |
Correct |
15 ms |
12672 KB |
Output is correct |
3 |
Correct |
15 ms |
12672 KB |
Output is correct |
4 |
Correct |
14 ms |
12672 KB |
Output is correct |
5 |
Correct |
17 ms |
13696 KB |
Output is correct |
6 |
Correct |
20 ms |
13696 KB |
Output is correct |
7 |
Correct |
17 ms |
13696 KB |
Output is correct |
8 |
Correct |
17 ms |
13696 KB |
Output is correct |
9 |
Correct |
17 ms |
13824 KB |
Output is correct |
10 |
Correct |
20 ms |
13696 KB |
Output is correct |
11 |
Correct |
19 ms |
13688 KB |
Output is correct |
12 |
Correct |
18 ms |
13696 KB |
Output is correct |
13 |
Correct |
23 ms |
13680 KB |
Output is correct |
14 |
Correct |
21 ms |
13680 KB |
Output is correct |
15 |
Correct |
19 ms |
13824 KB |
Output is correct |
16 |
Correct |
20 ms |
13824 KB |
Output is correct |
17 |
Correct |
20 ms |
13696 KB |
Output is correct |
18 |
Correct |
17 ms |
13696 KB |
Output is correct |
19 |
Correct |
19 ms |
13668 KB |
Output is correct |
20 |
Correct |
849 ms |
19300 KB |
Output is correct |
21 |
Correct |
833 ms |
19340 KB |
Output is correct |
22 |
Correct |
878 ms |
19432 KB |
Output is correct |
23 |
Correct |
871 ms |
19688 KB |
Output is correct |
24 |
Correct |
652 ms |
116452 KB |
Output is correct |
25 |
Correct |
672 ms |
116468 KB |
Output is correct |
26 |
Correct |
739 ms |
116392 KB |
Output is correct |
27 |
Correct |
438 ms |
117732 KB |
Output is correct |
28 |
Correct |
418 ms |
117716 KB |
Output is correct |
29 |
Correct |
402 ms |
117720 KB |
Output is correct |
30 |
Correct |
436 ms |
117096 KB |
Output is correct |
31 |
Correct |
548 ms |
116992 KB |
Output is correct |
32 |
Correct |
456 ms |
117248 KB |
Output is correct |
33 |
Correct |
489 ms |
117092 KB |
Output is correct |
34 |
Correct |
557 ms |
117348 KB |
Output is correct |
35 |
Correct |
576 ms |
117092 KB |
Output is correct |
36 |
Correct |
520 ms |
117220 KB |
Output is correct |
37 |
Correct |
573 ms |
117380 KB |
Output is correct |
38 |
Correct |
528 ms |
117360 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
13 ms |
12672 KB |
Output is correct |
2 |
Correct |
15 ms |
12672 KB |
Output is correct |
3 |
Correct |
15 ms |
12672 KB |
Output is correct |
4 |
Correct |
14 ms |
12672 KB |
Output is correct |
5 |
Correct |
17 ms |
13696 KB |
Output is correct |
6 |
Correct |
20 ms |
13696 KB |
Output is correct |
7 |
Correct |
17 ms |
13696 KB |
Output is correct |
8 |
Correct |
17 ms |
13696 KB |
Output is correct |
9 |
Correct |
17 ms |
13824 KB |
Output is correct |
10 |
Correct |
20 ms |
13696 KB |
Output is correct |
11 |
Correct |
19 ms |
13688 KB |
Output is correct |
12 |
Correct |
18 ms |
13696 KB |
Output is correct |
13 |
Correct |
23 ms |
13680 KB |
Output is correct |
14 |
Correct |
21 ms |
13680 KB |
Output is correct |
15 |
Correct |
19 ms |
13824 KB |
Output is correct |
16 |
Correct |
20 ms |
13824 KB |
Output is correct |
17 |
Correct |
20 ms |
13696 KB |
Output is correct |
18 |
Correct |
17 ms |
13696 KB |
Output is correct |
19 |
Correct |
19 ms |
13668 KB |
Output is correct |
20 |
Correct |
849 ms |
19300 KB |
Output is correct |
21 |
Correct |
833 ms |
19340 KB |
Output is correct |
22 |
Correct |
878 ms |
19432 KB |
Output is correct |
23 |
Correct |
871 ms |
19688 KB |
Output is correct |
24 |
Correct |
652 ms |
116452 KB |
Output is correct |
25 |
Correct |
672 ms |
116468 KB |
Output is correct |
26 |
Correct |
739 ms |
116392 KB |
Output is correct |
27 |
Correct |
438 ms |
117732 KB |
Output is correct |
28 |
Correct |
418 ms |
117716 KB |
Output is correct |
29 |
Correct |
402 ms |
117720 KB |
Output is correct |
30 |
Correct |
436 ms |
117096 KB |
Output is correct |
31 |
Correct |
548 ms |
116992 KB |
Output is correct |
32 |
Correct |
456 ms |
117248 KB |
Output is correct |
33 |
Correct |
489 ms |
117092 KB |
Output is correct |
34 |
Correct |
557 ms |
117348 KB |
Output is correct |
35 |
Correct |
576 ms |
117092 KB |
Output is correct |
36 |
Correct |
520 ms |
117220 KB |
Output is correct |
37 |
Correct |
573 ms |
117380 KB |
Output is correct |
38 |
Correct |
528 ms |
117360 KB |
Output is correct |
39 |
Correct |
740 ms |
115784 KB |
Output is correct |
40 |
Correct |
701 ms |
115428 KB |
Output is correct |
41 |
Correct |
1385 ms |
115828 KB |
Output is correct |
42 |
Correct |
698 ms |
118116 KB |
Output is correct |
43 |
Correct |
624 ms |
117940 KB |
Output is correct |
44 |
Correct |
886 ms |
21748 KB |
Output is correct |
45 |
Correct |
842 ms |
21220 KB |
Output is correct |
46 |
Correct |
1091 ms |
21220 KB |
Output is correct |
47 |
Correct |
889 ms |
20968 KB |
Output is correct |
48 |
Correct |
874 ms |
20988 KB |
Output is correct |
49 |
Correct |
504 ms |
119508 KB |
Output is correct |
50 |
Correct |
1010 ms |
119384 KB |
Output is correct |
51 |
Correct |
904 ms |
21816 KB |
Output is correct |
52 |
Correct |
1087 ms |
21200 KB |
Output is correct |
53 |
Correct |
569 ms |
118884 KB |
Output is correct |
54 |
Correct |
668 ms |
118884 KB |
Output is correct |
55 |
Correct |
956 ms |
118912 KB |
Output is correct |
56 |
Correct |
1036 ms |
118852 KB |
Output is correct |
57 |
Correct |
887 ms |
21736 KB |
Output is correct |
58 |
Correct |
904 ms |
22064 KB |
Output is correct |
59 |
Correct |
1070 ms |
21220 KB |
Output is correct |
60 |
Correct |
1080 ms |
21228 KB |
Output is correct |
61 |
Correct |
454 ms |
119388 KB |
Output is correct |
62 |
Correct |
544 ms |
118756 KB |
Output is correct |
63 |
Correct |
551 ms |
118948 KB |
Output is correct |
64 |
Correct |
609 ms |
119396 KB |
Output is correct |
65 |
Correct |
600 ms |
118724 KB |
Output is correct |
66 |
Correct |
692 ms |
118984 KB |
Output is correct |
67 |
Correct |
659 ms |
119268 KB |
Output is correct |
68 |
Correct |
790 ms |
118884 KB |
Output is correct |
69 |
Correct |
842 ms |
118888 KB |
Output is correct |
70 |
Correct |
483 ms |
119400 KB |
Output is correct |
71 |
Correct |
529 ms |
118888 KB |
Output is correct |
72 |
Correct |
599 ms |
119176 KB |
Output is correct |
73 |
Correct |
443 ms |
119428 KB |
Output is correct |
74 |
Correct |
530 ms |
118904 KB |
Output is correct |
75 |
Correct |
578 ms |
119176 KB |
Output is correct |
76 |
Correct |
501 ms |
119652 KB |
Output is correct |
77 |
Correct |
820 ms |
119268 KB |
Output is correct |
78 |
Correct |
453 ms |
119508 KB |
Output is correct |
79 |
Correct |
911 ms |
21832 KB |
Output is correct |
80 |
Correct |
1036 ms |
21348 KB |
Output is correct |
81 |
Correct |
909 ms |
20836 KB |
Output is correct |
82 |
Correct |
545 ms |
118876 KB |
Output is correct |
83 |
Correct |
796 ms |
118596 KB |
Output is correct |
84 |
Correct |
916 ms |
118760 KB |
Output is correct |
85 |
Correct |
950 ms |
118744 KB |
Output is correct |
86 |
Correct |
484 ms |
118824 KB |
Output is correct |
87 |
Correct |
508 ms |
118856 KB |
Output is correct |
88 |
Correct |
917 ms |
21872 KB |
Output is correct |
89 |
Correct |
944 ms |
21864 KB |
Output is correct |
90 |
Correct |
1073 ms |
21204 KB |
Output is correct |
91 |
Correct |
1055 ms |
21220 KB |
Output is correct |
92 |
Correct |
851 ms |
20752 KB |
Output is correct |
93 |
Correct |
870 ms |
20964 KB |
Output is correct |
94 |
Correct |
676 ms |
118880 KB |
Output is correct |
95 |
Correct |
552 ms |
118772 KB |
Output is correct |
96 |
Correct |
870 ms |
118756 KB |
Output is correct |
97 |
Correct |
873 ms |
118756 KB |
Output is correct |
98 |
Correct |
532 ms |
118884 KB |
Output is correct |
99 |
Correct |
478 ms |
119056 KB |
Output is correct |
100 |
Correct |
846 ms |
21884 KB |
Output is correct |
101 |
Correct |
873 ms |
21908 KB |
Output is correct |
102 |
Correct |
1050 ms |
21440 KB |
Output is correct |
103 |
Correct |
1054 ms |
21460 KB |
Output is correct |
104 |
Correct |
805 ms |
21064 KB |
Output is correct |
105 |
Correct |
855 ms |
21200 KB |
Output is correct |
106 |
Correct |
554 ms |
118884 KB |
Output is correct |
107 |
Correct |
628 ms |
119240 KB |
Output is correct |
108 |
Correct |
865 ms |
119028 KB |
Output is correct |
109 |
Correct |
888 ms |
119140 KB |
Output is correct |
110 |
Correct |
542 ms |
118984 KB |
Output is correct |
111 |
Correct |
689 ms |
119344 KB |
Output is correct |
112 |
Correct |
1135 ms |
21864 KB |
Output is correct |
113 |
Correct |
900 ms |
22068 KB |
Output is correct |
114 |
Correct |
1018 ms |
21344 KB |
Output is correct |
115 |
Correct |
1010 ms |
21424 KB |
Output is correct |
116 |
Correct |
807 ms |
20956 KB |
Output is correct |
117 |
Correct |
876 ms |
21128 KB |
Output is correct |
118 |
Correct |
435 ms |
119140 KB |
Output is correct |
119 |
Correct |
570 ms |
118288 KB |
Output is correct |
120 |
Correct |
622 ms |
118244 KB |
Output is correct |
121 |
Correct |
451 ms |
118888 KB |
Output is correct |
122 |
Correct |
530 ms |
118204 KB |
Output is correct |
123 |
Correct |
580 ms |
118244 KB |
Output is correct |
124 |
Correct |
511 ms |
119112 KB |
Output is correct |
125 |
Correct |
669 ms |
118628 KB |
Output is correct |
126 |
Correct |
679 ms |
118680 KB |
Output is correct |