이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
#define dbg(x) x
#define prt(x) dbg(cerr << x)
#define pv(x) prt(#x << " = " << x << '\n')
#define parr(x) dbg(prt(#x << " = "); for (auto y : x) prt(y << ' '); prt('\n'));
#define parr2d(x) dbg(prt(#x << " = \n"); for (auto y : x) parr(y); prt('\n'));
/*
which ties are possible?
a can convince b if sum(a) > sum(b)
note that nodes are weighted
note that the tie with the strictly least number can't be 1 in the end
one with strictly most can be 1 in the end
how to greedily make 1 the largest?
dfs from the node
and keep adding the smallest adj greedily
and make sure that the size of this color's comp is greater than any other color's comp
subtask 1: brute force
subtask 3: just some weird stuff with set ig
*/
int main() {
int n, m;
cin >> n >> m;
vector<long long> s(n);
for (int i = 0; i < n; i++) {
cin >> s[i];
}
vector<vector<int>> edges(n);
for (int i = 0; i < m; i++) {
int x, y;
cin >> x >> y;
x--; y--;
edges[x].push_back(y);
edges[y].push_back(x);
}
for (int i = 0; i < n; i++) {
vector<bool> vis(n, false);
vis[i] = true;
priority_queue<array<long long, 2>> que;
que.push({-s[i], i});
bool ok = true;
long long tot = s[i];
while (que.size()) {
long long sz = -que.top()[0], node = que.top()[1];
que.pop();
if (sz > tot) {
ok = false;
break;
}
if (node != i) {
tot += sz;
}
for (auto next : edges[node]) {
if (!vis[next]) {
vis[next] = true;
que.push({-s[next], next});
}
}
}
cout << (ok ? 1 : 0);
}
cout << '\n';
}
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