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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#804651 | #9810. Obliviate, Then Reincarnate | chzhc_ | WA | 86ms | 44236kb | C++14 | 3.7kb | 2024-12-08 01:39:32 | 2024-12-08 01:39:32 |
Judging History
answer
#include <bits/stdc++.h>
template < typename T >
inline void read(T &cnt)
{
cnt = 0; char ch = getchar(); bool op = 1;
for (; ! isdigit(ch); ch = getchar())
if (ch == '-') op = 0;
for (; isdigit(ch); ch = getchar())
cnt = cnt * 10 + ch - 48;
cnt = op ? cnt : - cnt;
}
const int N = 5e5 + 10;
const int M = 5e5 + 10;
namespace E1
{
int head[N], nxt[M], to[M], val[M], tot;
inline void add(int u, int v, int w)
{
// std::cout << "edge " << u << ' ' << v << '\n';
nxt[++ tot] = head[u];
head[u] = tot;
to[tot] = v;
val[tot] = w;
}
}
namespace E2
{
int head[N], nxt[M], to[M], tot;
inline void add(int u, int v)
{
// std::cout << "EDGE " << u << ' ' << v << '\n';
nxt[++ tot] = head[u];
head[u] = tot;
to[tot] = v;
}
}
int n, m, q, valteam[N], in[N];
int dfn[N], low[N], dt;
int col[N], ct;
int sck[N], st;
std::vector < int > set[N];
bool choose[N];
inline void tarjan(int u)
{
++ dt; dfn[u] = low[u] = dt;
++ st; sck[st] = u;
for (int i = E1::head[u]; i; i = E1::nxt[i])
{
int v = E1::to[i];
if (! dfn[v])
{
tarjan(v);
low[u] = std::min(low[u], low[v]);
}
else low[u] = std::min(low[u], dfn[v]);
}
if (dfn[u] == low[u])
{
++ ct;
while (sck[st] != u)
{
valteam[ct] ++; col[sck[st]] = ct; set[ct].push_back(sck[st]); st --;
}
valteam[ct] ++; col[sck[st]] = ct; set[ct].push_back(sck[st]); st --;
}
}
std::queue < int > Q;
int opt[N], flg[N], vis[N], nowcase;
long long h[N];
inline void dfs(int x) {
vis[x] = 1;
for (int i = E1::head[x]; i; i = E1::nxt[i]) {
int v = E1::to[i];
if (choose[v] == 0) continue;
if (vis[v] == 0) h[v] = h[x] + E1::val[i];
else if (h[v] != h[x] + E1::val[i]) {
nowcase = 1;
return;
}
if (vis[v] == 0) dfs(v);
}
}
inline bool check(int color) {
nowcase = 0;
int beg = -1;
for (auto it : set[color])
choose[it] = 1, beg = it;
h[beg] = 1;
dfs(beg);
for (auto it : set[color])
choose[it] = 0, vis[it] = 0;
if (nowcase == 1) return 1;
else return 0;
}
int main()
{
read(n), read(m), read(q);
for (int i = 1; i <= m; ++ i)
{
int u, v, b; read(u), read(v); b = v;
if (v == 0) continue;
u = (((u % n) + n) % n);
v = (((u + v) % n) + n) % n;
// if (u != v)
E1::add(u, v, b);
// if (u == v) opt[u] = 1;
}
for (int i = 0; i < n; ++ i)
if (! dfn[i]) tarjan(i);
for (int i = 1; i <= ct; ++ i) {
if (check(i))
flg[i] = 1;
}
for (int u = 0; u < n; ++ u)
{
for (int i = E1::head[u]; i; i = E1::nxt[i])
{
int v = E1::to[i];
if (col[u] != col[v])
{
E2::add(col[v], col[u]);
in[col[u]] ++;
}
}
}
for (int i = 1; i <= ct; ++ i)
if (in[i] == 0)
Q.push(i);
while (Q.size())
{
int u = Q.front(); Q.pop();
for (int i = E2::head[u]; i; i = E2::nxt[i])
{
int v = E2::to[i];
flg[v] = std::max(flg[v], flg[u]);
in[v] --;
if (in[v] == 0) Q.push(v);
}
}
while (q --) {
int x; read(x);
x = (((x % n) + n) % n);
if (flg[col[x]] == 0) std::cout << "No\n";
else std::cout << "Yes\n";
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 32436kb
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: 30460kb
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: 3ms
memory: 30236kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 3ms
memory: 28064kb
input:
3 2 3 0 1000000000 1 -1000000000 -1000000000 0 -1000000000
output:
No No No
result:
ok 3 tokens
Test #5:
score: 0
Accepted
time: 86ms
memory: 35800kb
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:
No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No ...
result:
ok 500000 tokens
Test #6:
score: -100
Wrong Answer
time: 83ms
memory: 44236kb
input:
100848 500000 500000 720352587 361776806 231853504 -933882325 960971230 -83519300 -152772415 -631132247 842871215 -666621297 857194330 -754943024 -698506963 -705416545 -3551931 -927937446 628710320 -942247987 674921043 847145884 -325629529 475694308 -339363446 686789318 236702996 654762989 420412365...
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 No 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 Y...
result:
wrong answer 619th words differ - expected: 'No', found: 'Yes'