# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
557811 |
2022-05-06T05:01:45 Z |
Ai7081 |
Graph (BOI20_graph) |
C++17 |
|
2 ms |
2644 KB |
#include <bits/stdc++.h>
using namespace std;
#define st first
#define nd second
const int N = 1e5 + 5;
int n, m;
double ans[N];
pair<int, int> val[N], x;
bool mark[N], markx, fail;
vector<pair<int, int>> adj[N];
vector<int> a, now;
void dfs(int v) {
if (fail) return;
mark[v] = true;
now.push_back(v);
for (auto [to, w] : adj[v]) {
if (mark[to]) {
if (val[v].nd != val[to].nd) {
if (val[v].st + val[to].st != w) {fail = true; return;}
}
else {
if (markx) {
if (x.nd*(val[v].st+val[to].st) + x.st*(val[v].nd+val[to].nd) != x.nd*w) {
fail = true; return;
}
}
else if (val[v].nd == val[to].nd) {
x = {w-(val[v].st+val[to].st), val[v].nd+val[to].nd};
markx = true;
}
}
}
else {
val[to] = {w-val[v].st, -val[v].nd};
dfs(to);
}
}
}
int main() {
ios_base::sync_with_stdio(false); cin.tie(0);
// scanf(" %d %d", &n, &m);
cin >> n >> m;
while (m--) {
int u, v, w;
// scanf(" %d %d %d", &u, &v, &w);
cin >> u >> v >> w;
adj[u].push_back({v, w});
adj[v].push_back({u, w});
}
for (int i=1; i<=n; i++) if (!mark[i]) {
markx = false;
now.clear();
val[i] = {0, 1};
dfs(i);
if (fail) {/*printf("NO");*/ cout << "NO"; return 0;}
if (!markx) {
for (auto i : now) a.push_back(-val[i].nd*val[i].st);
sort(a.begin(), a.end());
x = {a[a.size()/2], 1};
}
for (auto i : now) ans[i] = (double)(x.st*val[i].nd+x.nd*val[i].st) / (double)x.nd;
}
// printf("YES\n");
// for (int i=1; i<=n; i++) printf("%lf ", ans[i]);
cout << "YES\n";
for (int i=1; i<=n; i++) cout << ans[i];
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
2 ms |
2644 KB |
Expected double, but "0.50.51.5-0.5" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
2 ms |
2644 KB |
Expected double, but "0.50.51.5-0.5" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
2 ms |
2644 KB |
Expected double, but "0.50.51.5-0.5" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
2 ms |
2644 KB |
Expected double, but "0.50.51.5-0.5" found |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
2 ms |
2644 KB |
Expected double, but "0.50.51.5-0.5" found |
2 |
Halted |
0 ms |
0 KB |
- |