#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define _CRT_SECURE_NO_WARNINGS
/****Author: Barish Namazov****/
#include <bits/stdc++.h>
using namespace std;
/***TEMPLATE***/
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define F first
#define S second
#define pb push_back
#define endl '\n'
const int max4 = 10004;
const int maxx = 200005;
const int max6 = 1000006;
const int lg5 = 17;
const int INF = 2 * 1000000007;
const long long INFLL = 4LL * 1000000000 * 1000000000;
/***************/
int powmod (int a, int b, int mod) {
int res = 1; a %= mod;
for (; b; b >>= 1) {
if (b & 1) {
res = 1LL * res * a % mod;
}
a = 1LL * a * a % mod;
}
return res;
}
int gcd (int a, int b) {
while (b > 0) {
int t = a % b;
a = b, b = t;
}
return a;
}
int lcm (int a, int b) {
return (a / gcd (a, b)) * b;
}
int is_prime (int n) {
if (n <= 1 || n > 3 && (n % 2 == 0 || n % 3 == 0))
return 0;
for (int i = 5, t = 2; i * i <= n; i += t, t = 6 - t)
if (n % i == 0)
return 0;
return 1;
}
/******Don't forget to use long long when needed!!******/
const int Block = 220;
int n, m, q;
vector <int> g[maxx];
vector <pair <int, int>> dp[maxx]; int res[maxx];
inline void update(int u, int v) {
for (auto i : dp[u]) {
res[i.S] = i.F;
}
for (auto i : dp[v]) {
res[i.S] = max(res[i.S], i.F + 1);
}
for (auto &i : dp[u]) {
i.F = max(i.F, res[i.S]); res[i.S] = 0;
}
for (auto i : dp[v]) {
if (res[i.S] > 0) {
dp[u].pb({i.F + 1, i.S}); res[i.S] = 0;
}
} sort(rall(dp[u]));
/*
vector <pair <int, int>> A, B;
for (auto i : dp[u]) B.pb(i);
for (auto i : dp[v]) {
if (res[i.S] > 0) {
A.pb({i.F + 1, i.S}); res[i.S] = 0;
}
} //sort(rall(A)); sort(rall(B));
while (!dp[u].empty()) dp[u].pop_back();
int ptr1 = 0, ptr2 = 0;
while (ptr1 < A.size() && ptr2 < B.size()) {
if (A[ptr1] > B[ptr2]) {
dp[u].pb(A[ptr1++]);
} else {
dp[u].pb(B[ptr2++]);
}
}
while (ptr1 < A.size()) dp[u].pb(A[ptr1++]);
while (ptr2 < B.size()) dp[u].pb(B[ptr2++]);*/
while (dp[u].size() > Block) {
dp[u].pop_back();
}
}
int has[maxx], lpath[maxx];
int main() {
//freopen("in.txt","r",stdin);
//freopen("out.txt","w",stdout);
ios_base :: sync_with_stdio(0);
cin.tie(0), cout.tie(0);
cin >> n >> m >> q;
int a, b;
for (int i = 1; i <= m; i++) {
cin >> a >> b;
g[b].pb(a);
}
for (int i = 1; i <= n; i++) {
for (int j : g[i]) {
update(i, j);
}
if (dp[i].size() < Block) {
dp[i].pb({0, i});
}
}
vector <int> bad; int tmp;
int t, y;
while (q --) {
cin >> t >> y;
for (int i = 0; i < y; i++) {
cin >> tmp;
bad.pb(tmp); has[tmp] = 1;
}
if (y < Block) {
int res = -1;
for (auto i : dp[t]) {
if (has[i.S] == 0) {
res = i.F; break;
}
}
cout << res << endl;
} else {
for (int i = 1; i <= t; i++) {
lpath[i] = -has[i];
for (int j : g[i]) {
if (lpath[j] != -1) {
lpath[i] = max(lpath[i], lpath[j] + 1);
}
}
}
cout << lpath[t] << endl;
}
for (int i = 0; i < y; i++) {
has[bad[i]] = 0;
}
bad.clear();
}
return 0;
}
Compilation message
bitaro.cpp:1:0: warning: ignoring #pragma comment [-Wunknown-pragmas]
#pragma comment(linker, "/stack:200000000")
bitaro.cpp: In function 'int is_prime(int)':
bitaro.cpp:55:25: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if (n <= 1 || n > 3 && (n % 2 == 0 || n % 3 == 0))
~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
14 ms |
10232 KB |
Output is correct |
6 |
Correct |
15 ms |
10232 KB |
Output is correct |
7 |
Correct |
13 ms |
10232 KB |
Output is correct |
8 |
Correct |
20 ms |
11640 KB |
Output is correct |
9 |
Correct |
20 ms |
11640 KB |
Output is correct |
10 |
Correct |
19 ms |
11640 KB |
Output is correct |
11 |
Correct |
20 ms |
11512 KB |
Output is correct |
12 |
Correct |
19 ms |
10872 KB |
Output is correct |
13 |
Correct |
20 ms |
11512 KB |
Output is correct |
14 |
Correct |
19 ms |
10872 KB |
Output is correct |
15 |
Correct |
18 ms |
10616 KB |
Output is correct |
16 |
Correct |
19 ms |
10872 KB |
Output is correct |
17 |
Correct |
20 ms |
11000 KB |
Output is correct |
18 |
Correct |
19 ms |
10744 KB |
Output is correct |
19 |
Correct |
20 ms |
11128 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
14 ms |
10232 KB |
Output is correct |
6 |
Correct |
15 ms |
10232 KB |
Output is correct |
7 |
Correct |
13 ms |
10232 KB |
Output is correct |
8 |
Correct |
20 ms |
11640 KB |
Output is correct |
9 |
Correct |
20 ms |
11640 KB |
Output is correct |
10 |
Correct |
19 ms |
11640 KB |
Output is correct |
11 |
Correct |
20 ms |
11512 KB |
Output is correct |
12 |
Correct |
19 ms |
10872 KB |
Output is correct |
13 |
Correct |
20 ms |
11512 KB |
Output is correct |
14 |
Correct |
19 ms |
10872 KB |
Output is correct |
15 |
Correct |
18 ms |
10616 KB |
Output is correct |
16 |
Correct |
19 ms |
10872 KB |
Output is correct |
17 |
Correct |
20 ms |
11000 KB |
Output is correct |
18 |
Correct |
19 ms |
10744 KB |
Output is correct |
19 |
Correct |
20 ms |
11128 KB |
Output is correct |
20 |
Correct |
533 ms |
12792 KB |
Output is correct |
21 |
Correct |
508 ms |
12792 KB |
Output is correct |
22 |
Correct |
621 ms |
12804 KB |
Output is correct |
23 |
Correct |
555 ms |
12792 KB |
Output is correct |
24 |
Correct |
1674 ms |
211324 KB |
Output is correct |
25 |
Correct |
1716 ms |
218028 KB |
Output is correct |
26 |
Correct |
1679 ms |
218380 KB |
Output is correct |
27 |
Correct |
987 ms |
215664 KB |
Output is correct |
28 |
Correct |
984 ms |
215804 KB |
Output is correct |
29 |
Correct |
988 ms |
215652 KB |
Output is correct |
30 |
Correct |
1035 ms |
215544 KB |
Output is correct |
31 |
Correct |
1642 ms |
274712 KB |
Output is correct |
32 |
Correct |
1104 ms |
215164 KB |
Output is correct |
33 |
Correct |
1004 ms |
140308 KB |
Output is correct |
34 |
Correct |
1381 ms |
167036 KB |
Output is correct |
35 |
Correct |
1012 ms |
139612 KB |
Output is correct |
36 |
Correct |
1077 ms |
177464 KB |
Output is correct |
37 |
Correct |
1753 ms |
231752 KB |
Output is correct |
38 |
Correct |
1112 ms |
177504 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
14 ms |
10232 KB |
Output is correct |
6 |
Correct |
15 ms |
10232 KB |
Output is correct |
7 |
Correct |
13 ms |
10232 KB |
Output is correct |
8 |
Correct |
20 ms |
11640 KB |
Output is correct |
9 |
Correct |
20 ms |
11640 KB |
Output is correct |
10 |
Correct |
19 ms |
11640 KB |
Output is correct |
11 |
Correct |
20 ms |
11512 KB |
Output is correct |
12 |
Correct |
19 ms |
10872 KB |
Output is correct |
13 |
Correct |
20 ms |
11512 KB |
Output is correct |
14 |
Correct |
19 ms |
10872 KB |
Output is correct |
15 |
Correct |
18 ms |
10616 KB |
Output is correct |
16 |
Correct |
19 ms |
10872 KB |
Output is correct |
17 |
Correct |
20 ms |
11000 KB |
Output is correct |
18 |
Correct |
19 ms |
10744 KB |
Output is correct |
19 |
Correct |
20 ms |
11128 KB |
Output is correct |
20 |
Correct |
533 ms |
12792 KB |
Output is correct |
21 |
Correct |
508 ms |
12792 KB |
Output is correct |
22 |
Correct |
621 ms |
12804 KB |
Output is correct |
23 |
Correct |
555 ms |
12792 KB |
Output is correct |
24 |
Correct |
1674 ms |
211324 KB |
Output is correct |
25 |
Correct |
1716 ms |
218028 KB |
Output is correct |
26 |
Correct |
1679 ms |
218380 KB |
Output is correct |
27 |
Correct |
987 ms |
215664 KB |
Output is correct |
28 |
Correct |
984 ms |
215804 KB |
Output is correct |
29 |
Correct |
988 ms |
215652 KB |
Output is correct |
30 |
Correct |
1035 ms |
215544 KB |
Output is correct |
31 |
Correct |
1642 ms |
274712 KB |
Output is correct |
32 |
Correct |
1104 ms |
215164 KB |
Output is correct |
33 |
Correct |
1004 ms |
140308 KB |
Output is correct |
34 |
Correct |
1381 ms |
167036 KB |
Output is correct |
35 |
Correct |
1012 ms |
139612 KB |
Output is correct |
36 |
Correct |
1077 ms |
177464 KB |
Output is correct |
37 |
Correct |
1753 ms |
231752 KB |
Output is correct |
38 |
Correct |
1112 ms |
177504 KB |
Output is correct |
39 |
Correct |
1943 ms |
214020 KB |
Output is correct |
40 |
Correct |
1783 ms |
216548 KB |
Output is correct |
41 |
Correct |
1799 ms |
217976 KB |
Output is correct |
42 |
Correct |
1840 ms |
218496 KB |
Output is correct |
43 |
Correct |
1870 ms |
217852 KB |
Output is correct |
44 |
Correct |
557 ms |
15472 KB |
Output is correct |
45 |
Correct |
584 ms |
14700 KB |
Output is correct |
46 |
Correct |
516 ms |
14600 KB |
Output is correct |
47 |
Correct |
563 ms |
14408 KB |
Output is correct |
48 |
Correct |
533 ms |
14276 KB |
Output is correct |
49 |
Correct |
1152 ms |
218540 KB |
Output is correct |
50 |
Correct |
1133 ms |
217320 KB |
Output is correct |
51 |
Correct |
552 ms |
15388 KB |
Output is correct |
52 |
Correct |
521 ms |
14480 KB |
Output is correct |
53 |
Correct |
1210 ms |
179440 KB |
Output is correct |
54 |
Correct |
1794 ms |
234384 KB |
Output is correct |
55 |
Correct |
1153 ms |
178284 KB |
Output is correct |
56 |
Correct |
1740 ms |
236548 KB |
Output is correct |
57 |
Correct |
545 ms |
15340 KB |
Output is correct |
58 |
Correct |
551 ms |
15360 KB |
Output is correct |
59 |
Correct |
527 ms |
14456 KB |
Output is correct |
60 |
Correct |
532 ms |
14688 KB |
Output is correct |
61 |
Correct |
1204 ms |
217724 KB |
Output is correct |
62 |
Correct |
1221 ms |
179536 KB |
Output is correct |
63 |
Correct |
1820 ms |
230392 KB |
Output is correct |
64 |
Correct |
1346 ms |
217692 KB |
Output is correct |
65 |
Correct |
1351 ms |
179068 KB |
Output is correct |
66 |
Correct |
1959 ms |
240216 KB |
Output is correct |
67 |
Correct |
1075 ms |
217700 KB |
Output is correct |
68 |
Correct |
1133 ms |
179492 KB |
Output is correct |
69 |
Correct |
1818 ms |
228280 KB |
Output is correct |
70 |
Correct |
1048 ms |
218104 KB |
Output is correct |
71 |
Correct |
1133 ms |
179452 KB |
Output is correct |
72 |
Correct |
1722 ms |
232960 KB |
Output is correct |
73 |
Correct |
1061 ms |
217928 KB |
Output is correct |
74 |
Correct |
1107 ms |
179444 KB |
Output is correct |
75 |
Correct |
1619 ms |
229668 KB |
Output is correct |
76 |
Correct |
1156 ms |
219256 KB |
Output is correct |
77 |
Correct |
1120 ms |
218256 KB |
Output is correct |
78 |
Correct |
1069 ms |
218616 KB |
Output is correct |
79 |
Correct |
539 ms |
15652 KB |
Output is correct |
80 |
Correct |
521 ms |
14560 KB |
Output is correct |
81 |
Correct |
515 ms |
14200 KB |
Output is correct |
82 |
Correct |
1138 ms |
219152 KB |
Output is correct |
83 |
Correct |
1595 ms |
281592 KB |
Output is correct |
84 |
Correct |
1090 ms |
218076 KB |
Output is correct |
85 |
Correct |
1625 ms |
309752 KB |
Output is correct |
86 |
Correct |
1109 ms |
218460 KB |
Output is correct |
87 |
Correct |
1688 ms |
294592 KB |
Output is correct |
88 |
Correct |
552 ms |
15656 KB |
Output is correct |
89 |
Correct |
561 ms |
15608 KB |
Output is correct |
90 |
Correct |
522 ms |
14596 KB |
Output is correct |
91 |
Correct |
554 ms |
14712 KB |
Output is correct |
92 |
Correct |
519 ms |
14300 KB |
Output is correct |
93 |
Correct |
512 ms |
14200 KB |
Output is correct |
94 |
Correct |
1099 ms |
144300 KB |
Output is correct |
95 |
Correct |
1587 ms |
174404 KB |
Output is correct |
96 |
Correct |
1043 ms |
142840 KB |
Output is correct |
97 |
Correct |
1520 ms |
176756 KB |
Output is correct |
98 |
Correct |
996 ms |
143736 KB |
Output is correct |
99 |
Correct |
1365 ms |
174328 KB |
Output is correct |
100 |
Correct |
579 ms |
15560 KB |
Output is correct |
101 |
Correct |
581 ms |
15684 KB |
Output is correct |
102 |
Correct |
563 ms |
14712 KB |
Output is correct |
103 |
Correct |
585 ms |
14636 KB |
Output is correct |
104 |
Correct |
572 ms |
14412 KB |
Output is correct |
105 |
Correct |
563 ms |
14288 KB |
Output is correct |
106 |
Correct |
1204 ms |
180104 KB |
Output is correct |
107 |
Correct |
1832 ms |
239408 KB |
Output is correct |
108 |
Correct |
1181 ms |
180180 KB |
Output is correct |
109 |
Correct |
1666 ms |
222008 KB |
Output is correct |
110 |
Correct |
1215 ms |
180892 KB |
Output is correct |
111 |
Correct |
1734 ms |
237688 KB |
Output is correct |
112 |
Correct |
568 ms |
15608 KB |
Output is correct |
113 |
Correct |
540 ms |
15608 KB |
Output is correct |
114 |
Correct |
525 ms |
14584 KB |
Output is correct |
115 |
Correct |
523 ms |
14528 KB |
Output is correct |
116 |
Correct |
511 ms |
14176 KB |
Output is correct |
117 |
Correct |
517 ms |
14328 KB |
Output is correct |
118 |
Correct |
1055 ms |
217484 KB |
Output is correct |
119 |
Correct |
1323 ms |
179332 KB |
Output is correct |
120 |
Correct |
1806 ms |
232984 KB |
Output is correct |
121 |
Correct |
1106 ms |
217340 KB |
Output is correct |
122 |
Correct |
1104 ms |
178476 KB |
Output is correct |
123 |
Correct |
1670 ms |
231080 KB |
Output is correct |
124 |
Correct |
1082 ms |
217316 KB |
Output is correct |
125 |
Correct |
1120 ms |
179616 KB |
Output is correct |
126 |
Correct |
1680 ms |
228684 KB |
Output is correct |