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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#788819 | #9810. Obliviate, Then Reincarnate | wifi32767 | RE | 2ms | 3832kb | C++20 | 1.9kb | 2024-11-27 18:24:57 | 2024-11-27 18:24:58 |
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]){
if (!color[(nex + cur) % n]){
color[(nex + cur) % n] = 1;
dfs((nex + cur) % 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(-y);
}
for (int i = 0; i < n; i ++){
set<array<int, 2>> vis1;
set<int> vis2;
queue<array<int, 2>> que;
que.push({i, 0});
vis2.insert(i);
vis1.insert({i, 0});
while (!que.empty()){
auto [x, y] = que.front();
// cerr << x << ' ' << y << endl;
que.pop();
for (int nex : graph[x]){
int nx = (x + nex) % n;
int ny = (x + y * n + nex) / n;
if (vis1.count({nx, ny})) continue;
if (vis2.count(nx)){
color[nx] = 1;
dfs(nx);
break;
}
vis1.insert({nx, ny});
vis2.insert(nx);
que.push({nx, ny});
}
}
// cerr << endl;
}
for (int i = 0; i < q; i ++){
int x; cin >> x;
x = (x % n + n) % n;
if (color[x]) 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: 100
Accepted
time: 2ms
memory: 3576kb
input:
3 2 3 1 1 -1 3 1 2 3
output:
Yes Yes No
result:
ok 3 tokens
Test #2:
score: 0
Accepted
time: 1ms
memory: 3572kb
input:
3 2 3 1 1 -1 0 1 2 3
output:
No No No
result:
ok 3 tokens
Test #3:
score: 0
Accepted
time: 0ms
memory: 3832kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 1ms
memory: 3640kb
input:
3 2 3 0 1000000000 1 -1000000000 -1000000000 0 -1000000000
output:
No No No
result:
ok 3 tokens
Test #5:
score: -100
Runtime Error
input:
50134 500000 500000 -154428638 -283522863 -186373509 -327130969 154999046 46750274 -933523447 349415487 -437683609 140099255 864996699 -262318199 811293034 -264299324 120273173 52410685 874944410 -52048424 445049930 -803690605 -138111276 -104634331 720288580 126597671 471164416 -348777147 -356502322...