1 条题解
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0
#include <bits/stdc++.h> using namespace std; const int MOD = 100003; int n, m; vector<int> e[1123456]; int dis[1123456]; int cnt[1123456]; queue<int> q; int main() { ios::sync_with_stdio(false); cin.tie(0); cin >> n >> m; for (int i = 1; i <= m; i++) { int u, v; cin >> u >> v; e[u].push_back(v); e[v].push_back(u); } memset(dis, 0x3f, sizeof(dis)); q.push(1); dis[1] = 0; cnt[1] = 1; while (!q.empty()) { int u = q.front(); q.pop(); for (int i = 0; i < e[u].size(); i++) { int v = e[u][i]; if (dis[u] + 1 < dis[v]) { dis[v] = dis[u] + 1; cnt[v] = cnt[u]; q.push(v); } else if (dis[u] + 1 == dis[v]) { cnt[v] = (cnt[v] + cnt[u]) % MOD; } } } for (int i = 1; i <= n; i++) cout << cnt[i] << "\n"; return 0; }
- 1
信息
- ID
- 1787
- 时间
- 1000ms
- 内存
- 512MiB
- 难度
- 4
- 标签
- 递交数
- 32
- 已通过
- 13
- 上传者