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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#853828 | #9237. Message | 275307894a | 85.74 | 236ms | 4092kb | C++20 | 3.8kb | 2025-01-11 19:33:33 | 2025-01-11 19:33:33 |
Judging History
answer
#include "message.h"
#include<bits/stdc++.h>
#define Gc() getchar()
#define Me(x,y) memset(x,y,sizeof(x))
#define Mc(x,y) memcpy(x,y,sizeof(x))
#define d(x,y) ((m)*(x-1)+(y))
#define R(n) (rnd()%(n)+1)
#define Pc(x) putchar(x)
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
#define eb emplace_back
#define all(x) x.begin(),x.end()
using namespace std;using ll=long long;using db=double;using lb=long db;using ui=unsigned;using ull=unsigned long long;using pii=pair<int,int>;
const int N=2e5+5,M=(1<<28)+5,K=1000+5,mod=998244353,Mod=mod-1;const db eps=1e-9;const int INF=1e9+7;mt19937 rnd(28382);
#define Tp template<typename T>
#define Ts template<typename T,typename... Ar>
namespace Debug{
Tp void _debug(char* f,T t){cerr<<f<<'='<<t<<endl;}
Ts void _debug(char* f,T x,Ar... y){while(*f!=',') cerr<<*f++;cerr<<'='<<x<<",";_debug(f+1,y...);}
#ifdef LOCAL
#define gdb(...) _debug((char*)#__VA_ARGS__,__VA_ARGS__)
#else
#define gdb(...) void()
#endif
}using namespace Debug;
int n,c[N],vis[N];
void send_message(vector<bool> M,vector<bool> C) {
n=M.size();
for(int i=0;i<31;i++) c[i]=C[i]^1;
for(int i=31;i<93;i++) c[i]=c[i-31];
int w=M.back()^1;
int flag=(M.size()==1024);
while(M.size()<1024) M.push_back(w);
int p=-1;
for(int i=0;i<31;i++){
int flag=0,sum=0;
for(int j=0;j<31;j++){
sum+=(c[i+j]?1:-1);
if(sum<=0){flag=1;break;}
}
if(!flag){p=i;break;}
}
assert(~p);
// gdb(p);
vector<bool> B(31);
for(int i=p;i<p+31;i++){
if(c[i]){
B[i%31]=c[i+1];
}else B[i%31]=0;
}
vector<bool> t0=send_packet(B);
fill(vis,vis+93,0);
for(int i=p;i<p+31;i++){
if(c[i]){
for(int j=i+1;;j++) if(!c[j]&&!vis[j]){
if(j>p+31){B[i%31]=flag;break;}
B[i%31]=c[j+1];vis[j]=1;
break;
}
}else B[i%31]=0;
}
vector<bool> t1=send_packet(B);
auto check=[&](int p,int *c,vector<bool> t0,vector<bool> t1){
queue<int> q;
fill(c,c+31,0);c[p]=1;
for(int i=p;i<p+31;i++){
// if(p==2) gdb(i,p,q.size());
if(c[i%31]){
q.push(i);
c[(i+1)%31]=t0[i%31];
}else{
c[(i+1)%31]=t1[q.front()%31];
q.pop();
}
if(q.size()<1) return 0;
}
if(q.size()>1) return 0;
return c[p];
};
vector<int> pos;
for(int i=0;i<31;i++){
static int cp[31];
if(check(i,cp,t0,t1)) pos.push_back(i);
}
// gdb(pos.size());
int q=find(all(pos),p)-pos.begin();
assert(q<pos.size());
for(int i=0;(1<<i)<pos.size();i++){
vector<bool> A;
for(int j=0;j<31;j++){
if(c[j]) A.push_back(q>>i&1);
else A.push_back(0);
}
send_packet(A);
}
reverse(all(M));
for(int i=0;i<64;i++){
for(int j=0;j<31;j++){
if(c[j]) B[j]=M.back(),M.pop_back();
else B[j]=0;
}
send_packet(B);
}
}
std::vector<bool> receive_message(std::vector<std::vector<bool>> R) {
vector<bool> t0=R[0],t1=R[1];
vector<int> pos;
auto check=[&](int p,int *c,vector<bool> t0,vector<bool> t1){
queue<int> q;
fill(c,c+31,0);c[p]=1;
for(int i=p;i<p+31;i++){
if(c[i%31]){
q.push(i);
c[(i+1)%31]=t0[i%31];
}else{
if(q.empty()) return 0;
c[(i+1)%31]=t1[q.front()%31];
q.pop();
}
if(q.size()<1) return 0;
}
if(q.size()>1) return 0;
return c[p];
};
static int c[31];
for(int i=0;i<31;i++){
if(check(i,c,t0,t1)) pos.push_back(i);
}
int p=0;
int k=2;
for(int i=0;(1<<i)<pos.size();i++){
int c0=0,c1=0;
for(int j=0;j<31;j++){
if(R[k][j]) c1++;
else c0++;
}
if(c0<c1) p|=1<<i;
k++;
}
p=pos[p];
check(p,c,t0,t1);
int flag=0;
for(int i=p+30;i>=p;i--) if(c[i%31]){flag=t1[i%31];break;}
vector<bool> ans;
for(int i=k;i<k+64;i++){
for(int j=0;j<31;j++) if(c[j]) ans.push_back(R[i][j]);
}
// gdb(ans[0],ans[1],ans[2],ans[3],ans[4],R[7][0]);
bool s=ans.back();
if(!flag){
while(ans.back()==s) ans.pop_back();
}
return ans;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 8.574
Acceptable Answer
Test #1:
score: 9.025
Acceptable Answer
time: 155ms
memory: 3800kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #2:
score: 8.574
Acceptable Answer
time: 216ms
memory: 3860kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #3:
score: 8.574
Acceptable Answer
time: 167ms
memory: 3884kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #4:
score: 9.025
Acceptable Answer
time: 185ms
memory: 3844kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #5:
score: 8.574
Acceptable Answer
time: 89ms
memory: 3832kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #6:
score: 8.574
Acceptable Answer
time: 70ms
memory: 3916kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #7:
score: 9.025
Acceptable Answer
time: 99ms
memory: 4092kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Subtask #2:
score: 77.166
Acceptable Answer
Test #8:
score: 81.225
Acceptable Answer
time: 197ms
memory: 3896kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #9:
score: 77.166
Acceptable Answer
time: 236ms
memory: 4056kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #10:
score: 81.225
Acceptable Answer
time: 174ms
memory: 3908kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #11:
score: 77.166
Acceptable Answer
time: 200ms
memory: 4060kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #12:
score: 81.225
Acceptable Answer
time: 198ms
memory: 3808kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #13:
score: 81.225
Acceptable Answer
time: 184ms
memory: 4092kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #14:
score: 81.225
Acceptable Answer
time: 89ms
memory: 3896kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #15:
score: 77.166
Acceptable Answer
time: 138ms
memory: 3900kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #16:
score: 81.225
Acceptable Answer
time: 130ms
memory: 3860kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #17:
score: 81.225
Acceptable Answer
time: 165ms
memory: 4080kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #18:
score: 77.166
Acceptable Answer
time: 189ms
memory: 4084kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #19:
score: 77.166
Acceptable Answer
time: 170ms
memory: 4080kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #20:
score: 81.225
Acceptable Answer
time: 159ms
memory: 4088kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #21:
score: 77.166
Acceptable Answer
time: 175ms
memory: 3888kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #22:
score: 77.166
Acceptable Answer
time: 117ms
memory: 4080kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.8574
result:
points 0.8574
Test #23:
score: 81.225
Acceptable Answer
time: 172ms
memory: 3852kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #24:
score: 81.225
Acceptable Answer
time: 109ms
memory: 3800kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #25:
score: 81.225
Acceptable Answer
time: 183ms
memory: 3804kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #26:
score: 81.225
Acceptable Answer
time: 165ms
memory: 3856kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025
Test #27:
score: 81.225
Acceptable Answer
time: 182ms
memory: 3836kb
Manager to Aisha
Aisha to Manager
Manager to Basma
Basma to Manager
Manager to Checker
0.9025
result:
points 0.9025