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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#865649 | #9810. Obliviate, Then Reincarnate | Hanoist | WA | 103ms | 38796kb | C++14 | 3.0kb | 2025-01-21 20:47:06 | 2025-01-21 20:47:06 |
Judging History
answer
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cmath>
#include<vector>
#include<queue>
#include<functional>
#include<utility>
#include<cassert>
using namespace std;
inline int read(){
int x = 0,f = 1;
char c = getchar();
while(c < '0' || c > '9'){
if(c == '-') f = -1;
c = getchar();
}
while(c >= '0' && c <= '9'){
x = (x << 3) + (x << 1) + (c ^ 48);
c = getchar();
}
return x * f;
}
const int N = 5e5 + 11;
int n,m,q,tt,top,cnt,head[N],stak[N],dfn[N],low[N],col[N],ecnt = -1;
int ecnt1 = -1,head1[N],in1[N],pos[N];
long long val[N];
bool vis[N],flag[N];
struct yjx{
int nxt,to;
long long c;
}e[N],e1[N];
inline void save(int x,int y,int w){
e[++ecnt] = (yjx){head[x],y,w};
head[x] = ecnt;
}
inline void save1(int x,int y,int w){
e1[++ecnt1] = (yjx){head1[x],y,w};
head1[x] = ecnt1;
++in1[y];
}
void tarjan(int now){
int i,temp;
dfn[now] = low[now] = ++tt;
stak[++top] = now;
for(i = head[now];~i;i = e[i].nxt){
temp = e[i].to;
if(!dfn[temp]){
tarjan(temp);
low[now] = min(low[now],low[temp]);
}
else if(!col[temp]) low[now] = min(low[now],low[temp]);
}
if(dfn[now] == low[now]){
col[now] = ++cnt;
pos[cnt] = now;
while(now != stak[top]){
col[stak[top--]] = cnt;
}
--top;
}
}
void dfs(int now){
int i,temp;
vis[now] = 1;
for(i = head[now];~i;i = e[i].nxt){
temp = e[i].to;
if(col[temp] != col[now]) continue;
if(vis[temp]){
if(val[temp] != val[now] + e[i].c) flag[col[now]] = 1;
continue;
}
val[temp] = val[now] + e[i].c;
dfs(temp);
}
}
void solve(){
int i;
for(i = 1;i <= cnt;i++){
val[pos[i]] = 0;
dfs(pos[i]);
}
}
void rebuild(){
int i,j,k;
for(i = 0;i < n;i++){
for(j = head[i];~j;j = e[j].nxt){
k = e[j].to;
if(col[i] != col[k]) save1(col[k],col[i],0);
}
}
}
void topo(){
queue<int> Q;
int i,now,temp;
for(i = 1;i <= cnt;i++){
if(!in1[i]) Q.push(i);
}
while(!Q.empty()){
now = Q.front();
Q.pop();
for(i = head1[now];~i;i = e1[i].nxt){
temp = e1[i].to;
if(flag[now]) flag[temp] = 1;
--in1[temp];
if(!in1[temp]) Q.push(temp);
}
}
}
int main(){
int t,i,j,x,y;
n = read(),m = read(),q = read();
memset(head1,-1,sizeof(head1));
memset(head,-1,sizeof(head));
for(i = 1;i <= m;i++){
x = read(),y = read();
x = (x % n + n) % n;
save(x,x + (y % n + n) % n,y);
}
for(i = 0;i < n;i++){
if(!dfn[i]) tarjan(i);
}
solve();
rebuild();
topo();
for(i = 1;i <= q;i++){
x = read();
if(flag[col[(x + n % n) % n]]) puts("Yes");
else puts("No");
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 22172kb
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: 21860kb
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: 23484kb
input:
1 1 1 0 1000000000 -1000000000
output:
Yes
result:
ok "Yes"
Test #4:
score: 0
Accepted
time: 1ms
memory: 21984kb
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: 103ms
memory: 36316kb
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: 102ms
memory: 38796kb
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:
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 Yes 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:
wrong answer 1st words differ - expected: 'Yes', found: 'No'