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 |
---|---|---|---|---|---|---|---|---|---|
#812387 | #9810. Obliviate, Then Reincarnate | fzx | WA | 404ms | 93748kb | C++14 | 2.6kb | 2024-12-13 14:56:13 | 2024-12-13 14:56:15 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define fi first
#define se second
#define pb push_back
using namespace std;
const int INF=1e6+5;
int n,m,Q,low[INF],dfn[INF],vis3[INF],vis4[INF],vis[INF];
int ff[INF],gg[INF],tot,s[INF],r,f[INF];
vector < pii > e2[INF],e[INF];
void DFS(int x) {
if (vis3[x]) return ;
vis3[x]=1;
for (pii it:e[x]) {
int v=it.fi,d=it.se;
if (!vis4[v]) continue;
ff[v]=ff[x]+d;DFS(v);
}
}
void DFS2(int x) {
if (vis3[x]) return ;
vis3[x]=1;
for (pii it:e2[x]) {
int v=it.fi,d=it.se;
if (!vis4[v]) continue;
gg[v]=gg[x]+d;DFS2(v);
}
}
void tarjan(int x) {
low[x]=dfn[x]=++tot;
s[++r]=x;f[x]=1;
for (pii it:e[x]) {
int v=it.fi;
if (!dfn[v]) {
tarjan(v);
low[x]=min(low[x],dfn[v]);
} else if (f[v])
low[x]=min(low[x],low[v]);
}
if (low[x]==dfn[x]) {
vector <int> cnt;
int xx=s[r];r--;
cnt.pb(xx);f[xx]=0;
while (xx!=x) {
xx=s[r];r--;
cnt.pb(xx);f[xx]=0;
}
for (int i:cnt) vis4[i]=1;
DFS(x);for (int i:cnt) vis3[i]=0;
DFS2(x);
int F=0;
for (int xx:cnt) {
if (ff[xx]+gg[xx]) F=1;
for (pii it:e[xx]) {
if (!vis4[it.fi]) continue;
// cerr<<xx<<" "<<it.fi<<" "<<vis4[xx]<<" "<<<<" qwerij\n";
if (ff[xx]+gg[it.fi]+it.se) F=1;
}
}
for (int i:cnt) vis4[i]=0;
if (!F) return ;
for (int i:cnt) vis[i]=1;
}
}
void solve() {
cin>>n>>m>>Q;
for (int i=1;i<=m;i++) {
int a=0,b=0;cin>>a>>b;
int aa=a%n,bb=(b+a)%n;
aa+=n;aa%=n;
bb+=n;bb%=n;
if (aa==bb) {
if (b) vis[aa]=1;
}
else {
e[aa].pb({bb,b});
e2[bb].pb({aa,b});
}
}
for (int i=0;i<n;i++)
if (!dfn[i]) tarjan(i);
queue <int> q;
for (int i=0;i<n;i++)
if (vis[i]) q.push(i);
while (q.size()) {
int x=q.front();q.pop();
for (pii it:e2[x]) {
int v=it.fi;
if (vis[v]) continue;
vis[v]=1;q.push(v);
}
}
for (int i=1;i<=Q;i++) {
int x=0;cin>>x;
x%=n;x+=n;x%=n;
if (vis[x]) cout<<"Yes\n";
else cout<<"No\n";
}
}
signed main()
{
// freopen("test.out","w",stdout);
ios::sync_with_stdio(false);
int t=1;
while (t--) solve();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 4ms
memory: 57500kb
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: 3ms
memory: 56464kb
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: 58540kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 13ms
memory: 56000kb
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: 404ms
memory: 93748kb
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'