oj.uz

Submission #199960

# Submission time Handle Problem Language Result Execution time Memory
199960 2020-02-04T11:49:00 Z dennisstar Bitaro’s Party (JOI18_bitaro) C++17
100 / 100
 1905 ms 419852 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;
			swap(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 12 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 12 ms 9720 KB Output is correct
4 Correct 12 ms 9720 KB Output is correct
5 Correct 14 ms 10232 KB Output is correct
6 Correct 13 ms 10232 KB Output is correct
7 Correct 13 ms 10104 KB Output is correct
8 Correct 26 ms 13052 KB Output is correct
9 Correct 24 ms 13048 KB Output is correct
10 Correct 24 ms 13176 KB Output is correct
11 Correct 29 ms 12764 KB Output is correct
12 Correct 17 ms 11128 KB Output is correct
13 Correct 23 ms 12536 KB Output is correct
14 Correct 22 ms 11768 KB Output is correct
15 Correct 17 ms 10744 KB Output is correct
16 Correct 21 ms 11640 KB Output is correct
17 Correct 22 ms 12024 KB Output is correct
18 Correct 18 ms 10872 KB Output is correct
19 Correct 22 ms 11896 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 12 ms 9720 KB Output is correct
4 Correct 12 ms 9720 KB Output is correct
5 Correct 14 ms 10232 KB Output is correct
6 Correct 13 ms 10232 KB Output is correct
7 Correct 13 ms 10104 KB Output is correct
8 Correct 26 ms 13052 KB Output is correct
9 Correct 24 ms 13048 KB Output is correct
10 Correct 24 ms 13176 KB Output is correct
11 Correct 29 ms 12764 KB Output is correct
12 Correct 17 ms 11128 KB Output is correct
13 Correct 23 ms 12536 KB Output is correct
14 Correct 22 ms 11768 KB Output is correct
15 Correct 17 ms 10744 KB Output is correct
16 Correct 21 ms 11640 KB Output is correct
17 Correct 22 ms 12024 KB Output is correct
18 Correct 18 ms 10872 KB Output is correct
19 Correct 22 ms 11896 KB Output is correct
20 Correct 1144 ms 14260 KB Output is correct
21 Correct 920 ms 14200 KB Output is correct
22 Correct 1109 ms 14188 KB Output is correct
23 Correct 1183 ms 14172 KB Output is correct
24 Correct 1415 ms 256640 KB Output is correct
25 Correct 1458 ms 268268 KB Output is correct
26 Correct 1465 ms 267396 KB Output is correct
27 Correct 1707 ms 415488 KB Output is correct
28 Correct 1685 ms 415480 KB Output is correct
29 Correct 1740 ms 415412 KB Output is correct
30 Correct 1719 ms 414932 KB Output is correct
31 Correct 1781 ms 400756 KB Output is correct
32 Correct 1712 ms 414840 KB Output is correct
33 Correct 1348 ms 257192 KB Output is correct
34 Correct 1237 ms 211448 KB Output is correct
35 Correct 1372 ms 255476 KB Output is correct
36 Correct 1649 ms 336372 KB Output is correct
37 Correct 1527 ms 304492 KB Output is correct
38 Correct 1630 ms 337168 KB Output is correct

Subtask #3
86.0 / 86.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 9720 KB Output is correct
2 Correct 10 ms 9720 KB Output is correct
3 Correct 12 ms 9720 KB Output is correct
4 Correct 12 ms 9720 KB Output is correct
5 Correct 14 ms 10232 KB Output is correct
6 Correct 13 ms 10232 KB Output is correct
7 Correct 13 ms 10104 KB Output is correct
8 Correct 26 ms 13052 KB Output is correct
9 Correct 24 ms 13048 KB Output is correct
10 Correct 24 ms 13176 KB Output is correct
11 Correct 29 ms 12764 KB Output is correct
12 Correct 17 ms 11128 KB Output is correct
13 Correct 23 ms 12536 KB Output is correct
14 Correct 22 ms 11768 KB Output is correct
15 Correct 17 ms 10744 KB Output is correct
16 Correct 21 ms 11640 KB Output is correct
17 Correct 22 ms 12024 KB Output is correct
18 Correct 18 ms 10872 KB Output is correct
19 Correct 22 ms 11896 KB Output is correct
20 Correct 1144 ms 14260 KB Output is correct
21 Correct 920 ms 14200 KB Output is correct
22 Correct 1109 ms 14188 KB Output is correct
23 Correct 1183 ms 14172 KB Output is correct
24 Correct 1415 ms 256640 KB Output is correct
25 Correct 1458 ms 268268 KB Output is correct
26 Correct 1465 ms 267396 KB Output is correct
27 Correct 1707 ms 415488 KB Output is correct
28 Correct 1685 ms 415480 KB Output is correct
29 Correct 1740 ms 415412 KB Output is correct
30 Correct 1719 ms 414932 KB Output is correct
31 Correct 1781 ms 400756 KB Output is correct
32 Correct 1712 ms 414840 KB Output is correct
33 Correct 1348 ms 257192 KB Output is correct
34 Correct 1237 ms 211448 KB Output is correct
35 Correct 1372 ms 255476 KB Output is correct
36 Correct 1649 ms 336372 KB Output is correct
37 Correct 1527 ms 304492 KB Output is correct
38 Correct 1630 ms 337168 KB Output is correct
39 Correct 1529 ms 264368 KB Output is correct
40 Correct 1446 ms 263240 KB Output is correct
41 Correct 1479 ms 265440 KB Output is correct
42 Correct 1548 ms 263528 KB Output is correct
43 Correct 1465 ms 262812 KB Output is correct
44 Correct 1236 ms 17564 KB Output is correct
45 Correct 1129 ms 14848 KB Output is correct
46 Correct 1127 ms 14720 KB Output is correct
47 Correct 1141 ms 14472 KB Output is correct
48 Correct 1111 ms 14224 KB Output is correct
49 Correct 1808 ms 419704 KB Output is correct
50 Correct 1758 ms 415360 KB Output is correct
51 Correct 1029 ms 17632 KB Output is correct
52 Correct 998 ms 14712 KB Output is correct
53 Correct 1753 ms 339168 KB Output is correct
54 Correct 1643 ms 309244 KB Output is correct
55 Correct 1651 ms 335456 KB Output is correct
56 Correct 1551 ms 305816 KB Output is correct
57 Correct 1170 ms 17544 KB Output is correct
58 Correct 1250 ms 17688 KB Output is correct
59 Correct 1150 ms 14664 KB Output is correct
60 Correct 1158 ms 14532 KB Output is correct
61 Correct 1905 ms 415376 KB Output is correct
62 Correct 1758 ms 337232 KB Output is correct
63 Correct 1665 ms 304600 KB Output is correct
64 Correct 1708 ms 414972 KB Output is correct
65 Correct 1679 ms 335308 KB Output is correct
66 Correct 1569 ms 306052 KB Output is correct
67 Correct 1726 ms 415040 KB Output is correct
68 Correct 1701 ms 336732 KB Output is correct
69 Correct 1614 ms 301904 KB Output is correct
70 Correct 1789 ms 415480 KB Output is correct
71 Correct 1740 ms 336860 KB Output is correct
72 Correct 1617 ms 305692 KB Output is correct
73 Correct 1720 ms 415488 KB Output is correct
74 Correct 1751 ms 337096 KB Output is correct
75 Correct 1585 ms 305804 KB Output is correct
76 Correct 1793 ms 419852 KB Output is correct
77 Correct 1786 ms 415464 KB Output is correct
78 Correct 1810 ms 415828 KB Output is correct
79 Correct 1059 ms 17272 KB Output is correct
80 Correct 970 ms 14620 KB Output is correct
81 Correct 940 ms 14224 KB Output is correct
82 Correct 1811 ms 419240 KB Output is correct
83 Correct 1852 ms 404904 KB Output is correct
84 Correct 1688 ms 414912 KB Output is correct
85 Correct 1773 ms 400404 KB Output is correct
86 Correct 1732 ms 415152 KB Output is correct
87 Correct 1774 ms 401448 KB Output is correct
88 Correct 1263 ms 17200 KB Output is correct
89 Correct 1190 ms 17176 KB Output is correct
90 Correct 1142 ms 14972 KB Output is correct
91 Correct 1210 ms 14848 KB Output is correct
92 Correct 1183 ms 14456 KB Output is correct
93 Correct 1170 ms 14740 KB Output is correct
94 Correct 1490 ms 262100 KB Output is correct
95 Correct 1320 ms 214392 KB Output is correct
96 Correct 1434 ms 256496 KB Output is correct
97 Correct 1251 ms 214516 KB Output is correct
98 Correct 1395 ms 258044 KB Output is correct
99 Correct 1273 ms 214132 KB Output is correct
100 Correct 1248 ms 17648 KB Output is correct
101 Correct 1215 ms 17888 KB Output is correct
102 Correct 1168 ms 15096 KB Output is correct
103 Correct 1142 ms 15224 KB Output is correct
104 Correct 1170 ms 14712 KB Output is correct
105 Correct 1159 ms 14972 KB Output is correct
106 Correct 1734 ms 340040 KB Output is correct
107 Correct 1644 ms 309624 KB Output is correct
108 Correct 1634 ms 337912 KB Output is correct
109 Correct 1537 ms 305272 KB Output is correct
110 Correct 1629 ms 338424 KB Output is correct
111 Correct 1539 ms 306552 KB Output is correct
112 Correct 1158 ms 17788 KB Output is correct
113 Correct 1196 ms 17708 KB Output is correct
114 Correct 1093 ms 15100 KB Output is correct
115 Correct 1146 ms 15072 KB Output is correct
116 Correct 1096 ms 14716 KB Output is correct
117 Correct 1119 ms 14712 KB Output is correct
118 Correct 1658 ms 415484 KB Output is correct
119 Correct 1622 ms 337784 KB Output is correct
120 Correct 1519 ms 305088 KB Output is correct
121 Correct 1674 ms 415648 KB Output is correct
122 Correct 1618 ms 336632 KB Output is correct
123 Correct 1534 ms 305656 KB Output is correct
124 Correct 1650 ms 415096 KB Output is correct
125 Correct 1648 ms 337784 KB Output is correct
126 Correct 1521 ms 304248 KB Output is correct