#include<bits/stdc++.h>
using namespace std;
#define FOR(i, a, b) for(int i = (a), _b = (b); i <= _b; ++i)
#define FORD(i, b, a) for(int i = (b), _a = (a); i >= _a; --i)
#define REP(i, a, b) for(int i = (a), _b = (b); i < _b; ++i)
#define REPD(i, b, a) for(int i = (b), _a = (a); i > _a; --i)
#define MASK(i) (1LL << (i))
#define BIT(mask, i) (((mask) >> (i)) & 1)
#define __builtin_popcount __builtin_popcountll
#define all(val) val.begin(), val.end()
#define ll long long
#define ull unsigned long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll Rand(ll l, ll r) {return l + rng() % (r - l + 1);}
template<class X, class Y>
bool minimize(X &x, const Y &y) {
if (x > y) {
x = y;
return true;
} else return false;
}
template<class X, class Y>
bool maximize(X &x, const Y &y) {
if (x < y) {
x = y;
return true;
} else return false;
}
template<class T>
T Abs(const T &x) {
return (x < 0 ? -x : x);
}
const int N = 3e5 + 5;
int n, x[N];
ll s;
vector<int> g[N];
priority_queue<pll> q[N];
void process() {
cin >> n >> s;
FOR(i, 1, n) {
int p;
cin >> x[i] >> p;
g[p].push_back(i);
}
function<void(int)> dfs = [&](int u) {
for(int v : g[u]) {
dfs(v);
if(q[u].size() < q[v].size()) swap(q[u], q[v]);
while(q[v].size()) {
auto top = q[v].top(); q[v].pop();
q[u].push(top);
}
}
if(u == 0) return;
if(x[u] > 0) q[u].emplace(0, x[u]);
else {
ll mn = x[u], prof = x[u]; // <= 0
while(q[u].size()) {
auto top = q[u].top();
if(prof <= 0) {
minimize(mn, prof + top.fi);
prof += top.se;
}
else {
if(top.fi < mn) break;
prof += top.se;
}
q[u].pop();
}
if(prof > 0) q[u].emplace(mn, prof);
else {
while(q[u].size()) q[u].pop();
}
}
};
dfs(0);
ll prof = 0;
while(q[0].size()) {
auto top = q[0].top(); q[0].pop();
if(s + prof + top.fi >= 0) prof += top.se;
else break;
}
cout << prof << '\n';
}
signed main() {
if(fopen("test.inp","r")) {
freopen("test.inp","r",stdin);
freopen("test.out","w",stdout);
}
ios::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int ntests = 1;
// cin >> ntests;
while(ntests--) process();
return 0;
}
// https://oj.uz/problem/view/BOI24_jobs
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:97:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
97 | freopen("test.inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:98:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
98 | freopen("test.out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
188 ms |
51720 KB |
Output is correct |
2 |
Correct |
189 ms |
41676 KB |
Output is correct |
3 |
Correct |
121 ms |
35988 KB |
Output is correct |
4 |
Correct |
96 ms |
46528 KB |
Output is correct |
5 |
Correct |
91 ms |
53960 KB |
Output is correct |
6 |
Correct |
94 ms |
35456 KB |
Output is correct |
7 |
Correct |
171 ms |
44992 KB |
Output is correct |
8 |
Correct |
166 ms |
36676 KB |
Output is correct |
9 |
Correct |
101 ms |
48776 KB |
Output is correct |
10 |
Correct |
88 ms |
53392 KB |
Output is correct |
11 |
Correct |
205 ms |
53832 KB |
Output is correct |
12 |
Correct |
174 ms |
44992 KB |
Output is correct |
13 |
Correct |
203 ms |
51068 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
16732 KB |
Output is correct |
2 |
Correct |
8 ms |
16768 KB |
Output is correct |
3 |
Correct |
8 ms |
16732 KB |
Output is correct |
4 |
Correct |
7 ms |
16988 KB |
Output is correct |
5 |
Correct |
10 ms |
17240 KB |
Output is correct |
6 |
Correct |
10 ms |
16988 KB |
Output is correct |
7 |
Correct |
8 ms |
17084 KB |
Output is correct |
8 |
Correct |
7 ms |
16984 KB |
Output is correct |
9 |
Correct |
8 ms |
17036 KB |
Output is correct |
10 |
Correct |
9 ms |
16988 KB |
Output is correct |
11 |
Correct |
8 ms |
17240 KB |
Output is correct |
12 |
Correct |
9 ms |
16988 KB |
Output is correct |
13 |
Correct |
6 ms |
16984 KB |
Output is correct |
14 |
Correct |
7 ms |
16916 KB |
Output is correct |
15 |
Correct |
9 ms |
16784 KB |
Output is correct |
16 |
Correct |
7 ms |
16988 KB |
Output is correct |
17 |
Correct |
8 ms |
17244 KB |
Output is correct |
18 |
Correct |
7 ms |
16988 KB |
Output is correct |
19 |
Correct |
8 ms |
16988 KB |
Output is correct |
20 |
Correct |
7 ms |
16984 KB |
Output is correct |
21 |
Correct |
10 ms |
17004 KB |
Output is correct |
22 |
Correct |
7 ms |
16984 KB |
Output is correct |
23 |
Correct |
7 ms |
17244 KB |
Output is correct |
24 |
Correct |
7 ms |
17188 KB |
Output is correct |
25 |
Correct |
7 ms |
16988 KB |
Output is correct |
26 |
Correct |
7 ms |
16984 KB |
Output is correct |
27 |
Correct |
6 ms |
16988 KB |
Output is correct |
28 |
Correct |
6 ms |
16984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
16732 KB |
Output is correct |
2 |
Correct |
8 ms |
16768 KB |
Output is correct |
3 |
Correct |
8 ms |
16732 KB |
Output is correct |
4 |
Correct |
7 ms |
16988 KB |
Output is correct |
5 |
Correct |
10 ms |
17240 KB |
Output is correct |
6 |
Correct |
10 ms |
16988 KB |
Output is correct |
7 |
Correct |
8 ms |
17084 KB |
Output is correct |
8 |
Correct |
7 ms |
16984 KB |
Output is correct |
9 |
Correct |
8 ms |
17036 KB |
Output is correct |
10 |
Correct |
9 ms |
16988 KB |
Output is correct |
11 |
Correct |
8 ms |
17240 KB |
Output is correct |
12 |
Correct |
9 ms |
16988 KB |
Output is correct |
13 |
Correct |
6 ms |
16984 KB |
Output is correct |
14 |
Correct |
7 ms |
16916 KB |
Output is correct |
15 |
Correct |
9 ms |
16784 KB |
Output is correct |
16 |
Correct |
7 ms |
16988 KB |
Output is correct |
17 |
Correct |
8 ms |
17244 KB |
Output is correct |
18 |
Correct |
7 ms |
16988 KB |
Output is correct |
19 |
Correct |
8 ms |
16988 KB |
Output is correct |
20 |
Correct |
7 ms |
16984 KB |
Output is correct |
21 |
Correct |
10 ms |
17004 KB |
Output is correct |
22 |
Correct |
7 ms |
16984 KB |
Output is correct |
23 |
Correct |
7 ms |
17244 KB |
Output is correct |
24 |
Correct |
7 ms |
17188 KB |
Output is correct |
25 |
Correct |
7 ms |
16988 KB |
Output is correct |
26 |
Correct |
7 ms |
16984 KB |
Output is correct |
27 |
Correct |
6 ms |
16988 KB |
Output is correct |
28 |
Correct |
6 ms |
16984 KB |
Output is correct |
29 |
Correct |
75 ms |
37824 KB |
Output is correct |
30 |
Correct |
111 ms |
37476 KB |
Output is correct |
31 |
Correct |
74 ms |
34240 KB |
Output is correct |
32 |
Correct |
108 ms |
71268 KB |
Output is correct |
33 |
Correct |
100 ms |
55000 KB |
Output is correct |
34 |
Correct |
82 ms |
47688 KB |
Output is correct |
35 |
Correct |
41 ms |
26700 KB |
Output is correct |
36 |
Correct |
116 ms |
41152 KB |
Output is correct |
37 |
Correct |
83 ms |
38336 KB |
Output is correct |
38 |
Correct |
92 ms |
70328 KB |
Output is correct |
39 |
Correct |
84 ms |
55880 KB |
Output is correct |
40 |
Correct |
83 ms |
44420 KB |
Output is correct |
41 |
Correct |
79 ms |
35880 KB |
Output is correct |
42 |
Correct |
41 ms |
31688 KB |
Output is correct |
43 |
Correct |
84 ms |
48004 KB |
Output is correct |
44 |
Correct |
123 ms |
72536 KB |
Output is correct |
45 |
Correct |
84 ms |
55768 KB |
Output is correct |
46 |
Correct |
86 ms |
47456 KB |
Output is correct |
47 |
Correct |
83 ms |
35848 KB |
Output is correct |
48 |
Correct |
80 ms |
36292 KB |
Output is correct |
49 |
Correct |
89 ms |
38424 KB |
Output is correct |
50 |
Correct |
92 ms |
72392 KB |
Output is correct |
51 |
Correct |
62 ms |
47344 KB |
Output is correct |
52 |
Correct |
73 ms |
43848 KB |
Output is correct |
53 |
Correct |
59 ms |
39320 KB |
Output is correct |
54 |
Correct |
75 ms |
35400 KB |
Output is correct |
55 |
Correct |
81 ms |
38400 KB |
Output is correct |
56 |
Correct |
90 ms |
72392 KB |
Output is correct |
57 |
Correct |
126 ms |
55132 KB |
Output is correct |
58 |
Correct |
77 ms |
43756 KB |
Output is correct |
59 |
Correct |
89 ms |
41500 KB |
Output is correct |
60 |
Correct |
61 ms |
35528 KB |
Output is correct |
61 |
Correct |
82 ms |
47164 KB |
Output is correct |
62 |
Correct |
93 ms |
45672 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
16732 KB |
Output is correct |
2 |
Correct |
8 ms |
16768 KB |
Output is correct |
3 |
Correct |
8 ms |
16732 KB |
Output is correct |
4 |
Correct |
7 ms |
16988 KB |
Output is correct |
5 |
Correct |
10 ms |
17240 KB |
Output is correct |
6 |
Correct |
10 ms |
16988 KB |
Output is correct |
7 |
Correct |
8 ms |
17084 KB |
Output is correct |
8 |
Correct |
7 ms |
16984 KB |
Output is correct |
9 |
Correct |
8 ms |
17036 KB |
Output is correct |
10 |
Correct |
9 ms |
16988 KB |
Output is correct |
11 |
Correct |
8 ms |
17240 KB |
Output is correct |
12 |
Correct |
9 ms |
16988 KB |
Output is correct |
13 |
Correct |
6 ms |
16984 KB |
Output is correct |
14 |
Correct |
7 ms |
16916 KB |
Output is correct |
15 |
Correct |
9 ms |
16784 KB |
Output is correct |
16 |
Correct |
7 ms |
16988 KB |
Output is correct |
17 |
Correct |
8 ms |
17244 KB |
Output is correct |
18 |
Correct |
7 ms |
16988 KB |
Output is correct |
19 |
Correct |
8 ms |
16988 KB |
Output is correct |
20 |
Correct |
7 ms |
16984 KB |
Output is correct |
21 |
Correct |
10 ms |
17004 KB |
Output is correct |
22 |
Correct |
7 ms |
16984 KB |
Output is correct |
23 |
Correct |
7 ms |
17244 KB |
Output is correct |
24 |
Correct |
7 ms |
17188 KB |
Output is correct |
25 |
Correct |
7 ms |
16988 KB |
Output is correct |
26 |
Correct |
7 ms |
16984 KB |
Output is correct |
27 |
Correct |
6 ms |
16988 KB |
Output is correct |
28 |
Correct |
6 ms |
16984 KB |
Output is correct |
29 |
Correct |
6 ms |
16732 KB |
Output is correct |
30 |
Correct |
7 ms |
16988 KB |
Output is correct |
31 |
Correct |
7 ms |
16988 KB |
Output is correct |
32 |
Correct |
8 ms |
16964 KB |
Output is correct |
33 |
Correct |
7 ms |
16988 KB |
Output is correct |
34 |
Correct |
7 ms |
17052 KB |
Output is correct |
35 |
Correct |
8 ms |
16960 KB |
Output is correct |
36 |
Correct |
7 ms |
16988 KB |
Output is correct |
37 |
Correct |
7 ms |
16988 KB |
Output is correct |
38 |
Correct |
7 ms |
16984 KB |
Output is correct |
39 |
Correct |
7 ms |
16988 KB |
Output is correct |
40 |
Correct |
7 ms |
17032 KB |
Output is correct |
41 |
Correct |
7 ms |
16988 KB |
Output is correct |
42 |
Correct |
7 ms |
17024 KB |
Output is correct |
43 |
Correct |
8 ms |
16984 KB |
Output is correct |
44 |
Correct |
7 ms |
16988 KB |
Output is correct |
45 |
Correct |
8 ms |
16988 KB |
Output is correct |
46 |
Correct |
6 ms |
16940 KB |
Output is correct |
47 |
Correct |
7 ms |
16988 KB |
Output is correct |
48 |
Correct |
7 ms |
16984 KB |
Output is correct |
49 |
Correct |
6 ms |
16984 KB |
Output is correct |
50 |
Correct |
7 ms |
16988 KB |
Output is correct |
51 |
Correct |
9 ms |
17020 KB |
Output is correct |
52 |
Correct |
7 ms |
17060 KB |
Output is correct |
53 |
Correct |
6 ms |
16916 KB |
Output is correct |
54 |
Correct |
6 ms |
16988 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
188 ms |
51720 KB |
Output is correct |
2 |
Correct |
189 ms |
41676 KB |
Output is correct |
3 |
Correct |
121 ms |
35988 KB |
Output is correct |
4 |
Correct |
96 ms |
46528 KB |
Output is correct |
5 |
Correct |
91 ms |
53960 KB |
Output is correct |
6 |
Correct |
94 ms |
35456 KB |
Output is correct |
7 |
Correct |
171 ms |
44992 KB |
Output is correct |
8 |
Correct |
166 ms |
36676 KB |
Output is correct |
9 |
Correct |
101 ms |
48776 KB |
Output is correct |
10 |
Correct |
88 ms |
53392 KB |
Output is correct |
11 |
Correct |
205 ms |
53832 KB |
Output is correct |
12 |
Correct |
174 ms |
44992 KB |
Output is correct |
13 |
Correct |
203 ms |
51068 KB |
Output is correct |
14 |
Correct |
7 ms |
16732 KB |
Output is correct |
15 |
Correct |
8 ms |
16768 KB |
Output is correct |
16 |
Correct |
8 ms |
16732 KB |
Output is correct |
17 |
Correct |
7 ms |
16988 KB |
Output is correct |
18 |
Correct |
10 ms |
17240 KB |
Output is correct |
19 |
Correct |
10 ms |
16988 KB |
Output is correct |
20 |
Correct |
8 ms |
17084 KB |
Output is correct |
21 |
Correct |
7 ms |
16984 KB |
Output is correct |
22 |
Correct |
8 ms |
17036 KB |
Output is correct |
23 |
Correct |
9 ms |
16988 KB |
Output is correct |
24 |
Correct |
8 ms |
17240 KB |
Output is correct |
25 |
Correct |
9 ms |
16988 KB |
Output is correct |
26 |
Correct |
6 ms |
16984 KB |
Output is correct |
27 |
Correct |
7 ms |
16916 KB |
Output is correct |
28 |
Correct |
9 ms |
16784 KB |
Output is correct |
29 |
Correct |
7 ms |
16988 KB |
Output is correct |
30 |
Correct |
8 ms |
17244 KB |
Output is correct |
31 |
Correct |
7 ms |
16988 KB |
Output is correct |
32 |
Correct |
8 ms |
16988 KB |
Output is correct |
33 |
Correct |
7 ms |
16984 KB |
Output is correct |
34 |
Correct |
10 ms |
17004 KB |
Output is correct |
35 |
Correct |
7 ms |
16984 KB |
Output is correct |
36 |
Correct |
7 ms |
17244 KB |
Output is correct |
37 |
Correct |
7 ms |
17188 KB |
Output is correct |
38 |
Correct |
7 ms |
16988 KB |
Output is correct |
39 |
Correct |
7 ms |
16984 KB |
Output is correct |
40 |
Correct |
6 ms |
16988 KB |
Output is correct |
41 |
Correct |
6 ms |
16984 KB |
Output is correct |
42 |
Correct |
75 ms |
37824 KB |
Output is correct |
43 |
Correct |
111 ms |
37476 KB |
Output is correct |
44 |
Correct |
74 ms |
34240 KB |
Output is correct |
45 |
Correct |
108 ms |
71268 KB |
Output is correct |
46 |
Correct |
100 ms |
55000 KB |
Output is correct |
47 |
Correct |
82 ms |
47688 KB |
Output is correct |
48 |
Correct |
41 ms |
26700 KB |
Output is correct |
49 |
Correct |
116 ms |
41152 KB |
Output is correct |
50 |
Correct |
83 ms |
38336 KB |
Output is correct |
51 |
Correct |
92 ms |
70328 KB |
Output is correct |
52 |
Correct |
84 ms |
55880 KB |
Output is correct |
53 |
Correct |
83 ms |
44420 KB |
Output is correct |
54 |
Correct |
79 ms |
35880 KB |
Output is correct |
55 |
Correct |
41 ms |
31688 KB |
Output is correct |
56 |
Correct |
84 ms |
48004 KB |
Output is correct |
57 |
Correct |
123 ms |
72536 KB |
Output is correct |
58 |
Correct |
84 ms |
55768 KB |
Output is correct |
59 |
Correct |
86 ms |
47456 KB |
Output is correct |
60 |
Correct |
83 ms |
35848 KB |
Output is correct |
61 |
Correct |
80 ms |
36292 KB |
Output is correct |
62 |
Correct |
89 ms |
38424 KB |
Output is correct |
63 |
Correct |
92 ms |
72392 KB |
Output is correct |
64 |
Correct |
62 ms |
47344 KB |
Output is correct |
65 |
Correct |
73 ms |
43848 KB |
Output is correct |
66 |
Correct |
59 ms |
39320 KB |
Output is correct |
67 |
Correct |
75 ms |
35400 KB |
Output is correct |
68 |
Correct |
81 ms |
38400 KB |
Output is correct |
69 |
Correct |
90 ms |
72392 KB |
Output is correct |
70 |
Correct |
126 ms |
55132 KB |
Output is correct |
71 |
Correct |
77 ms |
43756 KB |
Output is correct |
72 |
Correct |
89 ms |
41500 KB |
Output is correct |
73 |
Correct |
61 ms |
35528 KB |
Output is correct |
74 |
Correct |
82 ms |
47164 KB |
Output is correct |
75 |
Correct |
93 ms |
45672 KB |
Output is correct |
76 |
Correct |
6 ms |
16732 KB |
Output is correct |
77 |
Correct |
7 ms |
16988 KB |
Output is correct |
78 |
Correct |
7 ms |
16988 KB |
Output is correct |
79 |
Correct |
8 ms |
16964 KB |
Output is correct |
80 |
Correct |
7 ms |
16988 KB |
Output is correct |
81 |
Correct |
7 ms |
17052 KB |
Output is correct |
82 |
Correct |
8 ms |
16960 KB |
Output is correct |
83 |
Correct |
7 ms |
16988 KB |
Output is correct |
84 |
Correct |
7 ms |
16988 KB |
Output is correct |
85 |
Correct |
7 ms |
16984 KB |
Output is correct |
86 |
Correct |
7 ms |
16988 KB |
Output is correct |
87 |
Correct |
7 ms |
17032 KB |
Output is correct |
88 |
Correct |
7 ms |
16988 KB |
Output is correct |
89 |
Correct |
7 ms |
17024 KB |
Output is correct |
90 |
Correct |
8 ms |
16984 KB |
Output is correct |
91 |
Correct |
7 ms |
16988 KB |
Output is correct |
92 |
Correct |
8 ms |
16988 KB |
Output is correct |
93 |
Correct |
6 ms |
16940 KB |
Output is correct |
94 |
Correct |
7 ms |
16988 KB |
Output is correct |
95 |
Correct |
7 ms |
16984 KB |
Output is correct |
96 |
Correct |
6 ms |
16984 KB |
Output is correct |
97 |
Correct |
7 ms |
16988 KB |
Output is correct |
98 |
Correct |
9 ms |
17020 KB |
Output is correct |
99 |
Correct |
7 ms |
17060 KB |
Output is correct |
100 |
Correct |
6 ms |
16916 KB |
Output is correct |
101 |
Correct |
6 ms |
16988 KB |
Output is correct |
102 |
Correct |
168 ms |
48284 KB |
Output is correct |
103 |
Correct |
170 ms |
43052 KB |
Output is correct |
104 |
Correct |
108 ms |
36568 KB |
Output is correct |
105 |
Correct |
97 ms |
36168 KB |
Output is correct |
106 |
Correct |
81 ms |
53364 KB |
Output is correct |
107 |
Correct |
81 ms |
46024 KB |
Output is correct |
108 |
Correct |
170 ms |
53300 KB |
Output is correct |
109 |
Correct |
75 ms |
30152 KB |
Output is correct |
110 |
Correct |
133 ms |
38752 KB |
Output is correct |
111 |
Correct |
133 ms |
37056 KB |
Output is correct |
112 |
Correct |
112 ms |
35008 KB |
Output is correct |
113 |
Correct |
86 ms |
45640 KB |
Output is correct |
114 |
Correct |
89 ms |
54272 KB |
Output is correct |
115 |
Correct |
79 ms |
31944 KB |
Output is correct |
116 |
Correct |
174 ms |
49784 KB |
Output is correct |
117 |
Correct |
130 ms |
39876 KB |
Output is correct |
118 |
Correct |
117 ms |
37568 KB |
Output is correct |
119 |
Correct |
95 ms |
33600 KB |
Output is correct |
120 |
Correct |
83 ms |
46532 KB |
Output is correct |
121 |
Correct |
76 ms |
46216 KB |
Output is correct |
122 |
Correct |
184 ms |
57696 KB |
Output is correct |
123 |
Correct |
153 ms |
48324 KB |
Output is correct |
124 |
Correct |
137 ms |
38412 KB |
Output is correct |
125 |
Correct |
136 ms |
38260 KB |
Output is correct |
126 |
Correct |
107 ms |
36020 KB |
Output is correct |
127 |
Correct |
52 ms |
31756 KB |
Output is correct |
128 |
Correct |
36 ms |
30480 KB |
Output is correct |
129 |
Correct |
186 ms |
57464 KB |
Output is correct |
130 |
Correct |
169 ms |
48320 KB |
Output is correct |
131 |
Correct |
156 ms |
42820 KB |
Output is correct |
132 |
Correct |
125 ms |
36968 KB |
Output is correct |
133 |
Correct |
106 ms |
35392 KB |
Output is correct |
134 |
Correct |
85 ms |
53764 KB |
Output is correct |
135 |
Correct |
81 ms |
49128 KB |
Output is correct |
136 |
Correct |
198 ms |
53248 KB |
Output is correct |
137 |
Correct |
187 ms |
56508 KB |
Output is correct |