/**
* code generated by JHelper
* More info: https://github.com/AlexeyDmitriev/JHelper
* @author Miguel Mini
*/
#include <bits/stdc++.h>
#define sz(x) (int)x.size()
#define trav(v, x) for (auto v : x)
#define re(x, y, z) for (int x=y; x<z; ++x)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define set_to(x, v) fill(all(x), v)
#define eb emplace_back
#define lso(x) ((x)&-(x))
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
const int mod = 1e9 + 7;
const int maxn = 1e5 + 10;
const int inf = INT_MAX;
vector<ii> g[maxn];
class pipes {
public:
void solveOne(istream& in, ostream& out) {
int n, m;
in >> n >> m;
if (m > n) {
out << 0 << endl;
return;
}
vector<ll> c(n);
vi deg(n);
trav(&v, c) in >> v;
vector<ii> edges;
re(i, 0, m) {
int a, b;
in >> a >> b;
a -= 1; b -= 1;
edges.eb(a, b);
g[a].eb(b, i); deg[a] += 1;
g[b].eb(a, i); deg[b] += 1;
}
vi res(m);
vector<bool> vis(m);
queue<int> Q;
re(i, 0, n) {
if (sz(g[i]) == 1) {
Q.push(i);
}
}
while (!Q.empty()) {
int q = Q.front(); Q.pop();
for (auto v : g[q]) {
int id = v.second;
if (vis[id]) continue;
vis[id] = 1;
m -= 1;
res[id] = 2 * c[q];
int u = v.first;
c[u] -= c[q];
c[q] = 0;
deg[u] -= 1;
if (deg[u] == 1) {
Q.push(u);
}
}
}
if (m == 0 and accumulate(all(c), 0ll) == 0) {
assert(false);
trav(v, res) out << v << endl;
} else if (m&1) {
int x = 0;
while (deg[x] == 0) x += 1;
ll sum = 0;
vector<int> t;
function<int(int, vi&, ll&)> dfs = [&](int v, vi& t, ll& sum)->int {
if (deg[v] != 2) return -inf;
sum = c[v] - sum;
trav(node, g[v]) {
if (!vis[node.second]) {
vis[node.second] = 1;
t.emplace_back(node.second);
if (node.first == x) return 1;
return dfs(node.first, t, sum) + 1;
}
}
return -inf;
};
if (dfs(x, t, sum) == m) {
res[t[0]] = 2 * c[x] - sum;
sum = res[t[0]];
re(i, 1, sz(t)) {
x ^= edges[t[i-1]].first ^ edges[t[i-1]].second;
res[t[i]] = 2 * c[x] - sum;
sum = res[t[i]];
}
trav(v, res) out << v << endl;
} else {
assert(false);
out << 0 << endl;
}
} else {
assert(false);
out << 0 << endl;
}
}
void solve(istream& in, ostream& out) {
int testNumber = 1;
//in >> testNumber;
re(tc, 1, testNumber+1) {
//out << "Case #" << tc << ": ";
solveOne(in, out);
}
}
};
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
pipes solver;
std::istream& in(std::cin);
std::ostream& out(std::cout);
solver.solve(in, out);
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
10 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Runtime error |
8 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 3 |
Runtime error |
10 ms |
5504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Runtime error |
85 ms |
18796 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 5 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 6 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 7 |
Runtime error |
9 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 9 |
Runtime error |
9 ms |
5504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Runtime error |
9 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 11 |
Runtime error |
9 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 12 |
Runtime error |
9 ms |
5504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 13 |
Runtime error |
66 ms |
16236 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 14 |
Runtime error |
74 ms |
18028 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 15 |
Runtime error |
83 ms |
18800 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 16 |
Runtime error |
68 ms |
16880 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 17 |
Runtime error |
86 ms |
18668 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 18 |
Runtime error |
84 ms |
18672 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 19 |
Runtime error |
76 ms |
17388 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 20 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 21 |
Runtime error |
10 ms |
5504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 22 |
Runtime error |
78 ms |
18668 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 23 |
Runtime error |
59 ms |
16108 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 24 |
Runtime error |
83 ms |
18796 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 25 |
Runtime error |
70 ms |
16620 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
10 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Correct |
8 ms |
2816 KB |
Output is correct |
| 3 |
Runtime error |
72 ms |
17388 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 4 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 5 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 7 |
Runtime error |
9 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 8 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 9 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 10 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 14 |
Runtime error |
9 ms |
5248 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 15 |
Correct |
8 ms |
2816 KB |
Output is correct |
| 16 |
Correct |
8 ms |
2816 KB |
Output is correct |
| 17 |
Runtime error |
10 ms |
5376 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 18 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 19 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 20 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 21 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 22 |
Runtime error |
9 ms |
5504 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 23 |
Correct |
220 ms |
12116 KB |
Output is correct |
| 24 |
Correct |
257 ms |
13420 KB |
Output is correct |
| 25 |
Runtime error |
72 ms |
17388 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 26 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 27 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 28 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 29 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 30 |
Runtime error |
77 ms |
17132 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 31 |
Correct |
271 ms |
15820 KB |
Output is correct |
| 32 |
Correct |
270 ms |
11116 KB |
Output is correct |
| 33 |
Runtime error |
73 ms |
17772 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 34 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 35 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 36 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 37 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 38 |
Correct |
260 ms |
12784 KB |
Output is correct |
| 39 |
Runtime error |
82 ms |
18416 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 40 |
Runtime error |
73 ms |
17900 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 41 |
Runtime error |
68 ms |
17388 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 42 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 43 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 44 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 45 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 46 |
Correct |
269 ms |
12380 KB |
Output is correct |
| 47 |
Runtime error |
70 ms |
17900 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 48 |
Correct |
268 ms |
15596 KB |
Output is correct |
| 49 |
Runtime error |
73 ms |
18028 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 50 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 51 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 52 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 53 |
Correct |
6 ms |
2688 KB |
Output is correct |
| 54 |
Runtime error |
77 ms |
17388 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
