| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 677755 |
2023-01-04T10:01:25 Z |
dooompy |
Pipes (BOI13_pipes) |
C++17 |
|
170 ms |
18880 KB |
#include "bits/stdc++.h"
using namespace std;
void abc() {cout << endl;}
template <typename T, typename ...U> void abc(T a, U ...b) {
cout << a << ' ', abc(b...);
}
template <typename T> void printv(T l, T r) {
while (l != r) cout << *l << " \n"[++l == r];
}
template <typename A, typename B> istream& operator >> (istream& o, pair<A, B> &a) {
return o >> a.first >> a.second;
}
template <typename A, typename B> ostream& operator << (ostream& o, pair<A, B> a) {
return o << '(' << a.first << ", " << a.second << ')';
}
template <typename T> ostream& operator << (ostream& o, vector<T> a) {
bool is = false;
for (T i : a) {o << (is ? ' ' : '{'), is = true, o << i;}
return o << '}';
}
#ifdef local
#define test(args...) abc("[" + string(#args) + "]", args)
#else
#define test(args...) void(0)
#endif
using ll = long long;
ll v[100005];
int deg[100005];
vector<pair<int, int>> adj[100005];
ll calc[500005];
bool seen[100005];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
// freopen("", "r", stdin);
// freopen("", "w", stdout);
int n, m; cin >> n >> m;
for (int i = 1; i <= n; i++) cin >> v[i];
for (int i = 1; i <= m; i++) {
int a, b; cin >> a >> b;
adj[a].push_back({b, i});
adj[b].push_back({a, i});
deg[a]++; deg[b]++;
}
queue<int> q;
for (int i = 1; i <= n; i++) {
if (deg[i] == 1) {
q.push(i);
}
}
while (!q.empty()) {
// deg 1
auto cur = q.front(); q.pop();
seen[cur] = true;
deg[cur] == 0;
auto to = adj[cur][0];
if (seen[to.first]) continue;
ll weight = v[cur];
v[to.first] -= weight;
calc[to.second] = weight;
if (--deg[to.first] == 1) {
q.push(to.first);
}
}
if (m == n - 1) {
for (int i = 1; i <= m; i++) {
cout << calc[i] * 2 << "\n";
}
return 0;
}
if (m > n || m % 2 == 0) {
cout << 0 << endl;
return 0;
}
for (int i = 1; i <= n; i++) {
assert(deg[i] == 2);
}
}
Compilation message
pipes.cpp: In function 'int main()':
pipes.cpp:66:18: warning: statement has no effect [-Wunused-value]
66 | deg[cur] == 0;
| ~~~~~~~~~^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
2680 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
2644 KB |
Output isn't correct |
| 3 |
Incorrect |
2 ms |
2688 KB |
Output isn't correct |
| 4 |
Incorrect |
55 ms |
10060 KB |
Output isn't correct |
| 5 |
Incorrect |
2 ms |
2596 KB |
Output isn't correct |
| 6 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 7 |
Incorrect |
2 ms |
2748 KB |
Output isn't correct |
| 8 |
Incorrect |
3 ms |
2684 KB |
Output isn't correct |
| 9 |
Incorrect |
3 ms |
2644 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
2772 KB |
Output isn't correct |
| 11 |
Incorrect |
2 ms |
2696 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
2696 KB |
Output isn't correct |
| 13 |
Incorrect |
37 ms |
8760 KB |
Output isn't correct |
| 14 |
Incorrect |
54 ms |
9788 KB |
Output isn't correct |
| 15 |
Incorrect |
49 ms |
10172 KB |
Output isn't correct |
| 16 |
Incorrect |
46 ms |
9204 KB |
Output isn't correct |
| 17 |
Incorrect |
57 ms |
10120 KB |
Output isn't correct |
| 18 |
Incorrect |
50 ms |
10144 KB |
Output isn't correct |
| 19 |
Incorrect |
45 ms |
9300 KB |
Output isn't correct |
| 20 |
Incorrect |
2 ms |
2684 KB |
Output isn't correct |
| 21 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 22 |
Incorrect |
59 ms |
10176 KB |
Output isn't correct |
| 23 |
Incorrect |
39 ms |
8780 KB |
Output isn't correct |
| 24 |
Incorrect |
53 ms |
10160 KB |
Output isn't correct |
| 25 |
Incorrect |
41 ms |
9128 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
2684 KB |
Output isn't correct |
| 2 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 3 |
Correct |
46 ms |
9172 KB |
Output is correct |
| 4 |
Correct |
45 ms |
9144 KB |
Output is correct |
| 5 |
Correct |
46 ms |
9392 KB |
Output is correct |
| 6 |
Correct |
169 ms |
18880 KB |
Output is correct |
| 7 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 8 |
Runtime error |
4 ms |
5332 KB |
Execution killed with signal 6 |
| 9 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2624 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2684 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
2644 KB |
Output isn't correct |
| 15 |
Incorrect |
3 ms |
2644 KB |
Output isn't correct |
| 16 |
Runtime error |
5 ms |
5332 KB |
Execution killed with signal 6 |
| 17 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2708 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2644 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2772 KB |
Output is correct |
| 22 |
Incorrect |
2 ms |
2644 KB |
Output isn't correct |
| 23 |
Runtime error |
48 ms |
15456 KB |
Execution killed with signal 6 |
| 24 |
Incorrect |
41 ms |
9328 KB |
Output isn't correct |
| 25 |
Correct |
39 ms |
9128 KB |
Output is correct |
| 26 |
Correct |
46 ms |
9328 KB |
Output is correct |
| 27 |
Correct |
42 ms |
9032 KB |
Output is correct |
| 28 |
Correct |
50 ms |
9552 KB |
Output is correct |
| 29 |
Correct |
139 ms |
16872 KB |
Output is correct |
| 30 |
Incorrect |
37 ms |
8892 KB |
Output isn't correct |
| 31 |
Runtime error |
49 ms |
17076 KB |
Execution killed with signal 6 |
| 32 |
Runtime error |
70 ms |
18228 KB |
Execution killed with signal 6 |
| 33 |
Correct |
57 ms |
9356 KB |
Output is correct |
| 34 |
Correct |
55 ms |
9124 KB |
Output is correct |
| 35 |
Correct |
44 ms |
9192 KB |
Output is correct |
| 36 |
Correct |
40 ms |
9512 KB |
Output is correct |
| 37 |
Correct |
170 ms |
18852 KB |
Output is correct |
| 38 |
Incorrect |
42 ms |
9164 KB |
Output isn't correct |
| 39 |
Runtime error |
46 ms |
18252 KB |
Execution killed with signal 6 |
| 40 |
Incorrect |
41 ms |
9352 KB |
Output isn't correct |
| 41 |
Runtime error |
43 ms |
17120 KB |
Execution killed with signal 6 |
| 42 |
Correct |
43 ms |
8956 KB |
Output is correct |
| 43 |
Correct |
44 ms |
8956 KB |
Output is correct |
| 44 |
Correct |
50 ms |
9440 KB |
Output is correct |
| 45 |
Correct |
107 ms |
16740 KB |
Output is correct |
| 46 |
Incorrect |
42 ms |
8908 KB |
Output isn't correct |
| 47 |
Incorrect |
44 ms |
9360 KB |
Output isn't correct |
| 48 |
Runtime error |
42 ms |
17108 KB |
Execution killed with signal 6 |
| 49 |
Correct |
39 ms |
9408 KB |
Output is correct |
| 50 |
Correct |
41 ms |
9164 KB |
Output is correct |
| 51 |
Correct |
43 ms |
9428 KB |
Output is correct |
| 52 |
Correct |
37 ms |
9072 KB |
Output is correct |
| 53 |
Correct |
131 ms |
16588 KB |
Output is correct |
| 54 |
Incorrect |
41 ms |
9076 KB |
Output isn't correct |
