QOJ.ac
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 |
---|---|---|---|---|---|---|---|---|---|
#810993 | #9810. Obliviate, Then Reincarnate | False0099 | WA | 856ms | 92920kb | C++20 | 3.4kb | 2024-12-12 14:21:59 | 2024-12-12 14:21:59 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 2e6 + 10, M = 2e6 + 10;
int n, m, mod;
int h[N], e[M << 1], ne[M << 1], idx, val[N]; // 原图参数
/*tarjan中间量*/
int dfn[N], low[N], timestamp;
int stk[N], top;
bool in_stk[N];
/*tarjan中间量*/
int id[N], scc_size[N]; // 新旧关系
int scc_cnt; // 新图的n
int hs[N], sum[N], dp[N], in[N]; // 新图的参数
int ans;
bool vis[N];
void add(int h[], int a, int b)
{
e[idx] = b, ne[idx] = h[a], h[a] = idx++;
}
void tarjan(int u)
{
dfn[u] = low[u] = ++timestamp;
stk[++top] = u, in_stk[u] = true;
for (int i = h[u]; ~i; i = ne[i])
{
int j = e[i];
if (!dfn[j])
{
tarjan(j);
low[u] = min(low[u], low[j]);
}
else if (in_stk[j])
low[u] = min(low[u], dfn[j]);
}
if (dfn[u] == low[u])
{
++scc_cnt;
int y;
do
{
y = stk[top--];
in_stk[y] = false;
id[y] = scc_cnt;
sum[scc_cnt] += val[y]; // 处理我们的合并点
scc_size[scc_cnt]++;
dp[scc_cnt] |= vis[y];
} while (y != u);
}
}
void topsort()
{
queue<int> q;
for (int i = 1; i <= scc_cnt; i++)
{
if (in[i] == 0)
{
q.push(i);
}
}
while (!q.empty())
{
int now = q.front();
q.pop();
for (int i = hs[now]; i != -1; i = ne[i])
{
int v = e[i];
in[v]--;
dp[v] = (dp[v] | dp[now]);
if (in[v] == 0)
{
q.push(v);
}
}
}
}
signed main()
{
memset(h, -1, sizeof h);
memset(hs, -1, sizeof hs);
int q;
cin >> n >> m >> q;
set<array<int, 2>> edges;
while (m--)
{
int a, b;
cin >> a >> b;
a %= n;
// b %= n;
a = (a + n) % n;
if (b == 0)
{
continue;
}
else
{
if (b == n)
{
vis[a] = 1;
}
b %= n;
// b = (b + n) % n;
if (a + b >= n || a + b < 0)
{
vis[a] = 1;
}
edges.insert({a, (a + b + n) % n});
// cerr << a << " " << (a + b + n) % n << endl;
add(h, a, (a + b + n) % n);
}
}
for (int i = 1; i <= n; i++)
{
if (!dfn[i])
{
tarjan(i);
}
}
for (int i = 1; i <= n; i++)
{
for (int j = h[i]; ~j; j = ne[j])
{
int k = e[j];
int a = id[i], b = id[k];
if (a != b)
{
add(hs, b, a);
in[a]++;
}
}
}
for (int i = 0; i < n; i++)
{
if (edges.count({i, i}))
{
dp[id[i]] = 1;
}
}
topsort();
// cerr << "q" << endl;
while (q--)
{
int u;
cin >> u;
u %= n;
u = (u + n) % n;
//cerr << u << " " << id[u] << endl;
if (dp[id[u]] == true)
{
cout << "Yes" << endl;
}
else
{
cout << "No" << endl;
}
}
// cout << ans << endl;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 46728kb
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: 0ms
memory: 46552kb
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: 4ms
memory: 45160kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 0ms
memory: 44608kb
input:
3 2 3 0 1000000000 1 -1000000000 -1000000000 0 -1000000000
output:
No No No
result:
ok 3 tokens
Test #5:
score: -100
Wrong Answer
time: 856ms
memory: 92920kb
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...
output:
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ...
result:
wrong answer 1st words differ - expected: 'No', found: 'Yes'