oj.uz

Submission #199959

# Submission time Handle Problem Language Result Execution time Memory
199959 2020-02-04T11:48:08 Z dennisstar Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1982 ms 335796 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define all(V) (V).begin(), (V).end()
using namespace std;
typedef vector<int> vim;
typedef pair<int, int> pii;

const int MAX=400;

int N, M, Q, ans[100010], chk[100010], ar[100010];
vim adj[100010], qu[100010], C[100010];
vector<pii> B[100010];

int main() {
	scanf("%d %d %d", &N, &M, &Q);
	for (int i=0, u, v; i<M; i++) scanf("%d %d", &u, &v), adj[v].eb(u);
	for (int i=1, t, y; i<=Q; i++) {
		scanf("%d %d", &t, &y); qu[t].eb(i);
		C[i].resize(y); for (auto &j:C[i]) scanf("%d", &j);
	}
	for (int i=1; i<=N; i++) {
		B[i].eb(0, i);
		for (auto &j:adj[i]) {
			vector<pii> im;
			int b=0;
			for (auto &k:B[i]) {
				while (b<B[j].size()&&k.fi<B[j][b].fi+1&&im.size()<MAX) {
					if (!chk[B[j][b].se]) im.eb(B[j][b].fi+1, B[j][b].se), chk[B[j][b].se]=1;
					b++;
				}
				if (im.size()>=MAX) break;
				if (!chk[k.se]) im.eb(k), chk[k.se]=1;
			}
			for (auto &k:im) chk[k.se]=0;
			B[i]=im;
		}
		for (auto &j:qu[i]) {
			ans[j]=-1;
			for (auto &k:C[j]) chk[k]=1;
			if (B[i].size()<MAX||C[j].size()<MAX) {
				for (auto &k:B[i]) if (!chk[k.se]) { 
					ans[j]=k.fi;
					break;
				}
			}
			else {
				for (int k=1; k<=i; k++) {
					ar[k]=(chk[k]?-1e6:0);
					for (auto &l:adj[k]) ar[k]=max(ar[k], ar[l]+1);
				}
				if (ar[i]>=0) ans[j]=ar[i];
			}
			for (auto &k:C[j]) chk[k]=0;
		}
	}
	for (int i=1; i<=Q; i++) printf("%d\n", ans[i]);
	return 0;
}

Compilation message

bitaro.cpp: In function 'int main()':
bitaro.cpp:30:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while (b<B[j].size()&&k.fi<B[j][b].fi+1&&im.size()<MAX) {
            ~^~~~~~~~~~~~
bitaro.cpp:18:7: 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:19:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i=0, u, v; i<M; i++) scanf("%d %d", &u, &v), adj[v].eb(u);
                                ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
bitaro.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &t, &y); qu[t].eb(i);
   ~~~~~^~~~~~~~~~~~~~~~~
bitaro.cpp:22:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   C[i].resize(y); for (auto &j:C[i]) scanf("%d", &j);
                                      ~~~~~^~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9592 KB Output is correct
5 Correct 14 ms 10104 KB Output is correct
6 Correct 14 ms 10104 KB Output is correct
7 Correct 14 ms 10104 KB Output is correct
8 Correct 25 ms 12280 KB Output is correct
9 Correct 25 ms 12284 KB Output is correct
10 Correct 25 ms 12280 KB Output is correct
11 Correct 24 ms 12024 KB Output is correct
12 Correct 17 ms 10744 KB Output is correct
13 Correct 24 ms 11896 KB Output is correct
14 Correct 22 ms 11264 KB Output is correct
15 Correct 17 ms 10488 KB Output is correct
16 Correct 23 ms 11256 KB Output is correct
17 Correct 21 ms 11384 KB Output is correct
18 Correct 17 ms 10616 KB Output is correct
19 Correct 22 ms 11384 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9592 KB Output is correct
5 Correct 14 ms 10104 KB Output is correct
6 Correct 14 ms 10104 KB Output is correct
7 Correct 14 ms 10104 KB Output is correct
8 Correct 25 ms 12280 KB Output is correct
9 Correct 25 ms 12284 KB Output is correct
10 Correct 25 ms 12280 KB Output is correct
11 Correct 24 ms 12024 KB Output is correct
12 Correct 17 ms 10744 KB Output is correct
13 Correct 24 ms 11896 KB Output is correct
14 Correct 22 ms 11264 KB Output is correct
15 Correct 17 ms 10488 KB Output is correct
16 Correct 23 ms 11256 KB Output is correct
17 Correct 21 ms 11384 KB Output is correct
18 Correct 17 ms 10616 KB Output is correct
19 Correct 22 ms 11384 KB Output is correct
20 Correct 1192 ms 13664 KB Output is correct
21 Correct 981 ms 13568 KB Output is correct
22 Correct 1163 ms 13640 KB Output is correct
23 Correct 1190 ms 13820 KB Output is correct
24 Correct 1383 ms 192708 KB Output is correct
25 Correct 1462 ms 202488 KB Output is correct
26 Correct 1441 ms 201976 KB Output is correct
27 Correct 1830 ms 328056 KB Output is correct
28 Correct 1796 ms 327928 KB Output is correct
29 Correct 1809 ms 327776 KB Output is correct
30 Correct 1805 ms 327416 KB Output is correct
31 Correct 1841 ms 315512 KB Output is correct
32 Correct 1820 ms 327160 KB Output is correct
33 Correct 1381 ms 204024 KB Output is correct
34 Correct 1246 ms 166740 KB Output is correct
35 Correct 1371 ms 202608 KB Output is correct
36 Correct 1633 ms 265884 KB Output is correct
37 Correct 1533 ms 239736 KB Output is correct
38 Correct 1674 ms 266244 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 9720 KB Output is correct
2 Correct 12 ms 9720 KB Output is correct
3 Correct 10 ms 9720 KB Output is correct
4 Correct 10 ms 9592 KB Output is correct
5 Correct 14 ms 10104 KB Output is correct
6 Correct 14 ms 10104 KB Output is correct
7 Correct 14 ms 10104 KB Output is correct
8 Correct 25 ms 12280 KB Output is correct
9 Correct 25 ms 12284 KB Output is correct
10 Correct 25 ms 12280 KB Output is correct
11 Correct 24 ms 12024 KB Output is correct
12 Correct 17 ms 10744 KB Output is correct
13 Correct 24 ms 11896 KB Output is correct
14 Correct 22 ms 11264 KB Output is correct
15 Correct 17 ms 10488 KB Output is correct
16 Correct 23 ms 11256 KB Output is correct
17 Correct 21 ms 11384 KB Output is correct
18 Correct 17 ms 10616 KB Output is correct
19 Correct 22 ms 11384 KB Output is correct
20 Correct 1192 ms 13664 KB Output is correct
21 Correct 981 ms 13568 KB Output is correct
22 Correct 1163 ms 13640 KB Output is correct
23 Correct 1190 ms 13820 KB Output is correct
24 Correct 1383 ms 192708 KB Output is correct
25 Correct 1462 ms 202488 KB Output is correct
26 Correct 1441 ms 201976 KB Output is correct
27 Correct 1830 ms 328056 KB Output is correct
28 Correct 1796 ms 327928 KB Output is correct
29 Correct 1809 ms 327776 KB Output is correct
30 Correct 1805 ms 327416 KB Output is correct
31 Correct 1841 ms 315512 KB Output is correct
32 Correct 1820 ms 327160 KB Output is correct
33 Correct 1381 ms 204024 KB Output is correct
34 Correct 1246 ms 166740 KB Output is correct
35 Correct 1371 ms 202608 KB Output is correct
36 Correct 1633 ms 265884 KB Output is correct
37 Correct 1533 ms 239736 KB Output is correct
38 Correct 1674 ms 266244 KB Output is correct
39 Correct 1520 ms 200312 KB Output is correct
40 Correct 1444 ms 201080 KB Output is correct
41 Correct 1427 ms 202488 KB Output is correct
42 Correct 1500 ms 201392 KB Output is correct
43 Correct 1418 ms 200700 KB Output is correct
44 Correct 1268 ms 19576 KB Output is correct
45 Correct 1229 ms 16248 KB Output is correct
46 Correct 1188 ms 15992 KB Output is correct
47 Correct 1186 ms 15564 KB Output is correct
48 Correct 1173 ms 15224 KB Output is correct
49 Correct 1982 ms 335304 KB Output is correct
50 Correct 1856 ms 329956 KB Output is correct
51 Correct 1086 ms 18888 KB Output is correct
52 Correct 1020 ms 15652 KB Output is correct
53 Correct 1735 ms 272188 KB Output is correct
54 Correct 1644 ms 247756 KB Output is correct
55 Correct 1720 ms 267480 KB Output is correct
56 Correct 1567 ms 243184 KB Output is correct
57 Correct 1219 ms 19152 KB Output is correct
58 Correct 1292 ms 19140 KB Output is correct
59 Correct 1169 ms 15920 KB Output is correct
60 Correct 1205 ms 15992 KB Output is correct
61 Correct 1958 ms 330488 KB Output is correct
62 Correct 1748 ms 268916 KB Output is correct
63 Correct 1664 ms 242552 KB Output is correct
64 Correct 1807 ms 330100 KB Output is correct
65 Correct 1673 ms 267460 KB Output is correct
66 Correct 1582 ms 243152 KB Output is correct
67 Correct 1828 ms 329992 KB Output is correct
68 Correct 1671 ms 268560 KB Output is correct
69 Correct 1558 ms 240196 KB Output is correct
70 Correct 1853 ms 330536 KB Output is correct
71 Correct 1694 ms 268948 KB Output is correct
72 Correct 1590 ms 243416 KB Output is correct
73 Correct 1877 ms 330584 KB Output is correct
74 Correct 1715 ms 269084 KB Output is correct
75 Correct 1607 ms 243624 KB Output is correct
76 Correct 1884 ms 335796 KB Output is correct
77 Correct 1908 ms 330616 KB Output is correct
78 Correct 1874 ms 331272 KB Output is correct
79 Correct 1054 ms 18848 KB Output is correct
80 Correct 1018 ms 15608 KB Output is correct
81 Correct 991 ms 15084 KB Output is correct
82 Correct 1907 ms 335408 KB Output is correct
83 Correct 1967 ms 323432 KB Output is correct
84 Correct 1835 ms 330336 KB Output is correct
85 Correct 1853 ms 318184 KB Output is correct
86 Correct 1918 ms 330540 KB Output is correct
87 Correct 1910 ms 319184 KB Output is correct
88 Correct 1281 ms 19192 KB Output is correct
89 Correct 1336 ms 19316 KB Output is correct
90 Correct 1208 ms 15836 KB Output is correct
91 Correct 1232 ms 15980 KB Output is correct
92 Correct 1231 ms 15352 KB Output is correct
93 Correct 1197 ms 15256 KB Output is correct
94 Correct 1512 ms 212116 KB Output is correct
95 Correct 1403 ms 173628 KB Output is correct
96 Correct 1453 ms 206268 KB Output is correct
97 Correct 1299 ms 172260 KB Output is correct
98 Correct 1473 ms 207232 KB Output is correct
99 Correct 1296 ms 171768 KB Output is correct
100 Correct 1317 ms 19360 KB Output is correct
101 Correct 1270 ms 19072 KB Output is correct
102 Correct 1324 ms 16092 KB Output is correct
103 Correct 1305 ms 15912 KB Output is correct
104 Correct 1353 ms 15104 KB Output is correct
105 Correct 1254 ms 15232 KB Output is correct
106 Correct 1816 ms 272776 KB Output is correct
107 Correct 1689 ms 247832 KB Output is correct
108 Correct 1663 ms 269476 KB Output is correct
109 Correct 1566 ms 242764 KB Output is correct
110 Correct 1685 ms 269932 KB Output is correct
111 Correct 1590 ms 243960 KB Output is correct
112 Correct 1249 ms 19192 KB Output is correct
113 Correct 1277 ms 19224 KB Output is correct
114 Correct 1136 ms 15864 KB Output is correct
115 Correct 1191 ms 15800 KB Output is correct
116 Correct 1180 ms 15248 KB Output is correct
117 Correct 1203 ms 15224 KB Output is correct
118 Correct 1835 ms 330380 KB Output is correct
119 Correct 1677 ms 269556 KB Output is correct
120 Correct 1583 ms 242620 KB Output is correct
121 Correct 1810 ms 330508 KB Output is correct
122 Correct 1694 ms 268712 KB Output is correct
123 Correct 1611 ms 243144 KB Output is correct
124 Correct 1814 ms 330044 KB Output is correct
125 Correct 1672 ms 269396 KB Output is correct
126 Correct 1583 ms 241876 KB Output is correct