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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#798469 | #9810. Obliviate, Then Reincarnate | IGVA | WA | 93ms | 41320kb | C++14 | 3.4kb | 2024-12-04 14:00:14 | 2024-12-04 14:00:20 |
Judging History
answer
#include<bits/stdc++.h>
#define ll long long
#define inf 0x3f3f3f3f
#define rep(i,a,b) for(int i=(a),i##_end=(b);i<=i##_end;++i)
#define dep(i,a,b) for(int i=(a),i##_end=(b);i>=i##_end;--i)
using namespace std;
template<class T>inline T mymin(T x,T y){return x<y?x:y;}
template<class T>inline T mymax(T x,T y){return x>y?x:y;}
template <typename T>
inline void read(T &X){
X=0;int w=0; char ch=0;
while(!isdigit(ch)) {w|=ch=='-';ch=getchar();}
while(isdigit(ch)) X=X*10+(ch^48),ch=getchar();
if(w) X=-X;
}
const int maxn = 5e5 + 5;
//const double pi = acos(-1.0);
//const double eps = 1e-9;
//const int mo = 1e9 + 7;
int n,m,k,q;
int a[maxn],c[maxn];
int ans,tmp,cnt;
int flag;
char s[maxn];
bool ok[maxn];
vector<int>vc[maxn];
queue<int>Q;
int num;
int l,he[maxn],low[maxn],dfn[maxn],sz[maxn];
int f,sta[maxn],j,ti;
int t,h,sum[maxn];
bool us[maxn];
struct node{
int v,nex;
bool vis;
}e[maxn];
void init(){
t=0;cnt=0;f=0;ti=0;
memset(he,-1,sizeof(he));
memset(dfn,0,sizeof(dfn)); //注意
memset(us,0,sizeof(us));
memset(sum,0,sizeof(sum));
rep(i,0,n) sz[i] = low[i] = 0;
}
void add(int u,int v)
{
e[t].v=v;
e[t].vis=0;
e[t].nex=he[u];
he[u]=t++;
}
void tar(int k)
{
low[k]=dfn[k]=++ti;
us[k]=1;
sta[++f]=k;
for(int i=he[k];i!=-1;i=e[i].nex)
{
int v=e[i].v;
if(!dfn[v])
{
tar(v);
low[k]=min(low[k],low[v]);
}
else if(us[v]) low[k]=min(low[k],dfn[v]);
}
if(low[k]==dfn[k])
{
cnt++;
do{
j=sta[f--];
us[j]=0;
sum[j]=cnt;
sz[cnt]++;
}while(j!=k);
}
}
void sol()
{
for(int i=0;i<n;i++)
if(!dfn[i]) tar(i);
}
int X[maxn],Y[maxn];
void solve(){
read(n);read(m);read(q);
init();
rep(i,0,n) ok[i] = 0;
int ct = 0;
rep(i,1,m){
int x,y;
read(x);read(y);
if(y == 0) continue;
if(y % n == 0){
x = (x % n + n) % n;
ok[x] = 1;
continue;
}
if(y > 0){
x = (x % n + n) % n;
y = (y % n + n) % n;
int nxt = (x + y) % n;
add(nxt,x);
continue;
}
X[++ct] = x;
Y[ct] = y;
}
sol();
rep(i,0,n-1) if(sz[sum[i]] > 1) ok[i] = 1;
rep(i,0,n-1) if(ok[i]){
Q.push(i);
while(!Q.empty()){
int x = Q.front();Q.pop();
for(int j=he[x];j!=-1;j=e[j].nex) {
int v = e[j].v;
if(!ok[v]){
ok[v] = 1;
Q.push(v);
}
}
}
}
// rep(i,1,n) cout<<"debug: "<<i<<" "<<ok[i]<<endl;
init();
rep(i,1,ct){
int x = X[i];
int y = Y[i];
x = (x % n + n) % n;
y = (y % n + n) % n;
int nxt = (x + y) % n;
add(nxt,x);
}
sol();
rep(i,0,n-1) if(sz[sum[i]] > 1) ok[i] = 1;
rep(i,0,n-1) if(ok[i]){
Q.push(i);
while(!Q.empty()){
int x = Q.front();Q.pop();
for(int j=he[x];j!=-1;j=e[j].nex) {
int v = e[j].v;
if(!ok[v]){
ok[v] = 1;
Q.push(v);
}
}
}
}
rep(i,1,q){
int x;
read(x);
x = (x % n + n) % n;
if(ok[x]) puts("Yes");
else puts("No");
}
// printf("%d\n",ans);
}
int main(){
//cin.tie(0)->sync_with_stdio(false);
int T=1,cas=1;
//read(T);
while(T--) solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 4ms
memory: 34364kb
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: 32244kb
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: 30252kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 4ms
memory: 34288kb
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: 62ms
memory: 38824kb
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: 93ms
memory: 41320kb
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 218th words differ - expected: 'Yes', found: 'No'