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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 |
---|---|---|---|---|---|---|---|---|---|
#792057 | #9810. Obliviate, Then Reincarnate | Clclclcl | WA | 248ms | 47288kb | C++20 | 3.1kb | 2024-11-28 23:13:32 | 2024-11-28 23:13:33 |
Judging History
answer
# include <bits/stdc++.h>
using namespace std;
using ll = long long;
# define int long long
# define endl '\n'
# define cy cout << "Yes" << endl
# define cn cout << "No" << endl
# define pb push_back
# define fi first
# define se second
# define in insert
# define all(a) a.begin(), a.end()
# define rep(i,a,n) for (int i = a;i <= n;i ++)
# define per(i,a,n) for (int i = n;i >= a;i --)
typedef pair<int,int> PII;
typedef double db;
const int N = 5e5 + 10;
const ll mod = 1e9 + 7;
const int inf = 0x3f3f3f3f;
const int INF = 1e17;
priority_queue<ll,vector<ll>, greater<ll> > mi;
priority_queue<ll> ma;
vector <int> g[N],ng[N];
vector <int> pos[N];
int n,m,k;
int dfn[N],low[N],tim;
int stk[N],top;
bool in_stk[N];
int din[N];
int id[N],cnt,Size[N];
int f[N];
void tarjan(int u){
dfn[u] = low[u] = ++ tim;
stk[ ++ top] = u,in_stk[u] = true;
for (auto l : g[u]){
if (!dfn[l]){
tarjan(l);
low[u] = min(low[u],low[l]);
}
else if (in_stk[l]) low[u] = min(low[u],dfn[l]);
}
if (dfn[u] == low[u]){
++ cnt;
int y;
do{
y = stk[top --];
in_stk[y] = false;
id[y] = cnt;
Size[cnt] ++;
pos[cnt].pb(y);
}while(y != u);
}
}
void solve() {
cin >> n >> m >> k;
vector <vector <PII>> g2(n + 1);
for(int i = 1;i <= m;i ++ ){
int l,r;
cin >> l >> r;
int l1 = ((l % n + n) % n);
int r1 = ((l % n + r) % n + n) % n;
l1 ++;
r1 ++;
//cout << l1 << r1 << endl;
g2[l1].pb({r1,r});
g[l1].pb(r1);
}
for(int i = 1;i <= n;i ++ ){
if(!dfn[i]) tarjan(i);
}
for(int i = 1;i <= cnt;i ++ ){
int a = id[i];
for(auto l : g[i]){
int b = id[l];
if(a != b){
ng[b].pb(a);
din[a] ++;
}
}
}
vector <int> ok(n + 1,0);
vector <bool> st(n + 1,0);
vector <int> dist(n + 1,0);
auto dfs = [&] (auto dfs,int u,int p) -> void{
if(st[u]) return;
st[u] = 1;
for(auto [l,w] : g2[u]){
if(id[l] != p) continue;
if(st[l]){
if(dist[u] + w != dist[l]){
//cout << dist[l] + w << ' ' << dist[u] << endl;
//cout << l << ' ' << u << endl;
ok[p] = 1;
return;
}
continue;
}
dist[l] = dist[u] + w;
dfs(dfs,l,p);
}
};
for(int i = 1;i <= cnt;i ++ ){
//cout << pos[i][0] << endl;
dfs(dfs,pos[i][0],i);
}
auto topsort = [&] () -> void{
queue <int> q;
for(int i = 1;i <= cnt;i ++ ){
if(!din[i]) q.push(i);
}
while(q.size()){
auto u = q.front();
q.pop();
for(auto l : ng[u]){
(ok[l] |= ok[u]);
if(-- din[l] == 0) q.push(l);
}
}
};
topsort();
while(k -- ){
int l;
cin >> l;
l = (l % n + n) % n + 1;
//cout << l;
l = id[l];
if(ok[l]) cy;
else cn;
}
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int _ = 1;
//cin >> _ ;
while( _ -- )
{
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 4ms
memory: 11840kb
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: 11824kb
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: 9800kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 0ms
memory: 9784kb
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: 245ms
memory: 37996kb
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: 248ms
memory: 47288kb
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 80th words differ - expected: 'Yes', found: 'No'