| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 445009 |
2021-07-16T08:28:19 Z |
zxcvbnm |
Pipes (BOI13_pipes) |
C++14 |
|
221 ms |
42584 KB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int maxN = 1e5 + 5;
vector<int> need, curr;
vector<pair<int, int>> adj[maxN];
vector<int> in;
vector<int> ans;
void bfs(int n) {
queue<int> q;
vector<bool> vis(n, false);
for(int i = 0; i < n; i++) {
if (in[i] == 1) {
q.push(i);
}
}
while(!q.empty()) {
int v = q.front();
q.pop();
vis[v] = true;
for(auto u : adj[v]) {
if (vis[u.first]) continue;
ans[u.second] = (need[v] - curr[v]) * 2;
curr[u.first] += ans[u.second] / 2;
curr[v] += ans[u.second] / 2;
in[u.first]--;
if (in[u.first] == 1) {
q.push(u.first);
}
}
assert(curr[v] == need[v]);
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
need.resize(n);
curr.assign(n, 0);
in.assign(n, 0);
ans.assign(n, 0);
for(int& i : need) {
cin >> i;
}
for(int i = 0; i < m; i++) {
int x, y;
cin >> x >> y;
x--, y--;
adj[x].push_back({y, i});
adj[y].push_back({x, i});
in[x]++;
in[y]++;
}
bfs(n);
for(int i = 0; i < m; i++) {
cout << ans[i] << "\n";
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2664 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 4 |
Correct |
71 ms |
10068 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2668 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2672 KB |
Output is correct |
| 13 |
Correct |
55 ms |
8560 KB |
Output is correct |
| 14 |
Correct |
66 ms |
9664 KB |
Output is correct |
| 15 |
Correct |
73 ms |
10184 KB |
Output is correct |
| 16 |
Correct |
58 ms |
8996 KB |
Output is correct |
| 17 |
Correct |
70 ms |
10180 KB |
Output is correct |
| 18 |
Correct |
71 ms |
10180 KB |
Output is correct |
| 19 |
Correct |
72 ms |
9540 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2636 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2708 KB |
Output is correct |
| 22 |
Correct |
77 ms |
10140 KB |
Output is correct |
| 23 |
Correct |
54 ms |
8552 KB |
Output is correct |
| 24 |
Correct |
72 ms |
10148 KB |
Output is correct |
| 25 |
Correct |
59 ms |
8896 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 2 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 3 |
Incorrect |
62 ms |
9264 KB |
Output isn't correct |
| 4 |
Incorrect |
63 ms |
9288 KB |
Output isn't correct |
| 5 |
Incorrect |
72 ms |
9684 KB |
Output isn't correct |
| 6 |
Runtime error |
215 ms |
42360 KB |
Execution killed with signal 11 |
| 7 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 8 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 9 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 11 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 12 |
Runtime error |
5 ms |
5196 KB |
Execution killed with signal 6 |
| 13 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 14 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 15 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 16 |
Incorrect |
2 ms |
2668 KB |
Output isn't correct |
| 17 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 18 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 19 |
Incorrect |
2 ms |
2700 KB |
Output isn't correct |
| 20 |
Runtime error |
5 ms |
5324 KB |
Execution killed with signal 11 |
| 21 |
Incorrect |
3 ms |
2764 KB |
Output isn't correct |
| 22 |
Incorrect |
2 ms |
2636 KB |
Output isn't correct |
| 23 |
Incorrect |
52 ms |
8260 KB |
Output isn't correct |
| 24 |
Incorrect |
68 ms |
9592 KB |
Output isn't correct |
| 25 |
Incorrect |
64 ms |
9284 KB |
Output isn't correct |
| 26 |
Incorrect |
69 ms |
9540 KB |
Output isn't correct |
| 27 |
Incorrect |
61 ms |
9296 KB |
Output isn't correct |
| 28 |
Runtime error |
82 ms |
17212 KB |
Execution killed with signal 11 |
| 29 |
Incorrect |
221 ms |
21620 KB |
Output isn't correct |
| 30 |
Incorrect |
67 ms |
9112 KB |
Output isn't correct |
| 31 |
Incorrect |
62 ms |
9320 KB |
Output isn't correct |
| 32 |
Incorrect |
70 ms |
9924 KB |
Output isn't correct |
| 33 |
Incorrect |
70 ms |
9568 KB |
Output isn't correct |
| 34 |
Incorrect |
61 ms |
9244 KB |
Output isn't correct |
| 35 |
Incorrect |
61 ms |
9284 KB |
Output isn't correct |
| 36 |
Runtime error |
78 ms |
17000 KB |
Execution killed with signal 6 |
| 37 |
Runtime error |
218 ms |
42584 KB |
Execution killed with signal 11 |
| 38 |
Incorrect |
67 ms |
9412 KB |
Output isn't correct |
| 39 |
Incorrect |
71 ms |
9984 KB |
Output isn't correct |
| 40 |
Incorrect |
66 ms |
9632 KB |
Output isn't correct |
| 41 |
Incorrect |
65 ms |
9216 KB |
Output isn't correct |
| 42 |
Incorrect |
64 ms |
9088 KB |
Output isn't correct |
| 43 |
Incorrect |
57 ms |
9156 KB |
Output isn't correct |
| 44 |
Incorrect |
66 ms |
9660 KB |
Output isn't correct |
| 45 |
Runtime error |
185 ms |
37744 KB |
Execution killed with signal 11 |
| 46 |
Incorrect |
65 ms |
9284 KB |
Output isn't correct |
| 47 |
Incorrect |
66 ms |
9600 KB |
Output isn't correct |
| 48 |
Incorrect |
67 ms |
9384 KB |
Output isn't correct |
| 49 |
Incorrect |
64 ms |
9608 KB |
Output isn't correct |
| 50 |
Incorrect |
63 ms |
9496 KB |
Output isn't correct |
| 51 |
Incorrect |
63 ms |
9664 KB |
Output isn't correct |
| 52 |
Incorrect |
60 ms |
9244 KB |
Output isn't correct |
| 53 |
Runtime error |
202 ms |
38052 KB |
Execution killed with signal 11 |
| 54 |
Incorrect |
65 ms |
9412 KB |
Output isn't correct |
