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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#789093 | #9810. Obliviate, Then Reincarnate | wifi32767 | TL | 0ms | 0kb | C++20 | 2.3kb | 2024-11-27 19:15:17 | 2024-11-27 19:15:21 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define int ll
#define endl '\n'
#define yes cout << "Yes" << endl
#define no cout << "No" << endl
const int MAX = 5e5 + 5, mod = 998244353;
vector<int> graph[MAX];
vector<int> rev_graph[MAX];
int color[MAX];
int n, m, q;
void dfs(int cur){
for (int nex : rev_graph[cur]){
// cerr << "_" << (nex + cur + n) % n << ' ' << nex << endl;
if (color[(nex + cur + n) % n] != 1){
color[(nex + cur + n) % n] = 1;
dfs((nex + cur + n) % n);
}
}
}
void solve(){
cin >> n >> m >> q;
vector<array<int, 2>> comm;
for (int i = 0; i < m; i ++){
int x, y; cin >> x >> y;
x = (x % n + n) % n;
if (y) comm.push_back({x, y});
}
for (auto [x, y] : comm){
graph[x].push_back(y);
int pos = (x + y) % n;
rev_graph[pos].push_back((n - (y % n)) % n);
}
for (int i = 0; i < n; i ++){
if (color[i]) continue;
set<array<int, 2>> vis1;
set<int> vis2;
queue<array<int, 2>> que;
que.push({i, 0});
vis2.insert(i);
vis1.insert({i, 0});
color[i] = 2;
while (!que.empty()){
auto [x, y] = que.front();
// cerr << x << ' ' << y << endl;
que.pop();
for (int nex : graph[x]){
int nx = ((x + nex % n) + n) % n;
int ny = (__int128_t)(x + y * n + nex) / n;
if (color[nx] == 1) continue;
if (vis1.count({nx, ny})) continue;
if (vis2.count(nx)){
// for (int j : vis2){
// if (color[j] == 2)
// color[j] = 0;
// }
color[nx] = 1;
dfs(nx);
}
vis1.insert({nx, ny});
vis2.insert(nx);
color[nx] = 2;
que.push({nx, ny});
}
}
// cerr << i << endl;
}
for (int i = 0; i < q; i ++){
int x; cin >> x;
x = (x % n + n) % n;
if (color[x] == 1) yes;
else no;
}
}
signed main(){
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
// int T=1;cin>>T;while(T--)
solve();
}
详细
Test #1:
score: 0
Time Limit Exceeded
input:
3 2 3 1 1 -1 3 1 2 3