QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #97700 | #6319. Parallel Processing (Easy) | whatever# | AC ✓ | 3ms | 3844kb | C++14 | 6.0kb | 2023-04-17 22:55:26 | 2023-04-17 22:55:29 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define mod 998244353
using namespace std;
vector<vector<vector<int> > > ans;
void op(vector<vector<int> > v)
{
/* bitset<2005> A,B,C,D;
A=(s[v[0][1]]^s[v[0][2]]);
B=(s[v[1][1]]^s[v[1][2]]);
C=(s[v[2][1]]^s[v[2][2]]);
D=(s[v[3][1]]^s[v[3][2]]);
s[v[0][0]]=A;
s[v[1][0]]=B;
s[v[2][0]]=C;
s[v[3][0]]=D;*/
ans.push_back(v);
}
int N;
vector<vector<vector<int> > > solve2(int n)
{
if(n>=33&&n!=38||n==23)
{
auto qaq=solve2(n-15);
vector<vector<vector<int> > > qwq=qaq;
for(int i=0;i<qwq.size();i++)
{
for(int j=0;j<qwq[i].size();j++)
{
for(int k=0;k<qwq[i][j].size();k++)
qwq[i][j][k]+=15;
}
}
qwq.insert(qwq.begin(),{{2,1,2},{4,3,4},{6,5,6},{8,7,8}});
qwq.insert(qwq.begin(),{{4,2,4},{8,6,8},{12,11,12},{10,9,10}});
qwq.insert(qwq.begin(),{{6,4,6},{8,4,8},{14,13,14},{16,15,16}});
qwq.insert(qwq.begin(),{{3,2,3},{5,4,5},{10,8,10},{14,12,14}});
qwq.insert(qwq.begin(),{{7,6,7},{9,8,9},{12,10,12},{14,10,14}});
qwq.insert(qwq.begin(),{{11,10,11},{13,12,13},{15,14,15},{16,14,16}});
return qwq;
}
ans.clear();
// bitset<2005> s[2005];
int fa[2005]={},cnt[2005]={};
for(int i=1;i<=n;i++) fa[i]=i-1,cnt[i-1]=1;
for(int i=1;i<=n;i++)
{
if(n%10==6&&i<=6)
{
vector<vector<int> > v;
bitset<2005> qwq;
qwq.reset();
int C=4;
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
if(v.size()==0) break;
while(v.size()<4) v.insert(v.begin(),{v.back()[0],2000,2000});
op(v);
continue;
}
vector<vector<int> > v;
bitset<2005> qwq;
qwq.reset();
int C=4;
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
if(v.size()==0) break;
while(v.size()<4) v.insert(v.begin(),{v.back()[0],2000,2000});
op(v);
}
return ans;
}
vector<vector<vector<int> > > solve1(int n)
{
ans.clear();
// bitset<2005> s[2005];
int fa[2005]={},cnt[2005]={};
for(int i=1;i<=n;i++) fa[i]=i-1,cnt[i-1]=1;
for(int i=1;i<=n;i++)
{
vector<vector<int> > v;
bitset<2005> qwq;
qwq.reset();
int C=4;
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]]&&fa[fa[j]]==0)
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
if(v.size()==0) break;
while(v.size()<4) v.insert(v.begin(),{v.back()[0],2000,2000});
op(v);
}
return ans;
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
// for(int i=1;i<=n;i++) s[i][i]=1;
// for(int i=1;i<=n;i++) fa[i]=i-1,cnt[i-1]=1;
/* for(int i=1;i<=n;i++)
{
vector<vector<int> > v;
bitset<2005> qwq;
qwq.reset();
int C=4;
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&cnt[j]&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&fa[fa[j]]==0&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]];
--C;
}
if(!C) break;
}
for(int j=1;j<=n;j++)
{
if(fa[j]!=0&&!qwq[fa[j]])
{
v.push_back({j,fa[j],j});
--cnt[fa[j]],++cnt[fa[fa[j]]],fa[j]=fa[fa[j]],qwq[j]=1;
--C;
}
if(!C) break;
}
if(v.size()==0) break;
while(v.size()<4) v.push_back({2,1,2});
op(v);
}*/
vector<vector<vector<int> > > qwq;
for(int i=0;i<=10000;i++) qwq.push_back({{}});
for(int i=n;i<=max(n,11ll);i++)
{
vector<vector<vector<int> > > xx=solve2(i);
if(xx.size()<qwq.size()) qwq=xx;
xx=solve1(i);
if(xx.size()<qwq.size()) qwq=xx;
}
ans=qwq;
// assert(((n-1)*2+4)/5==ans.size());
cout << ans.size() << "\n";
for(auto t:ans)
{
for(auto y:t)
{
for(auto x:y) cout << min(2000ll,x) << " ";
cout << "\n";
}
}
/* for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
{
cout << s[i][j];
}
cout << "\n";
}*/
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 3844kb
input:
2
output:
1 2 2000 2000 2 2000 2000 2 2000 2000 2 1 2
result:
ok AC
Test #2:
score: 0
Accepted
time: 2ms
memory: 3736kb
input:
4
output:
2 4 2000 2000 4 2000 2000 2 1 2 4 3 4 4 2000 2000 4 2000 2000 3 2 3 4 2 4
result:
ok AC
Test #3:
score: 0
Accepted
time: 2ms
memory: 3760kb
input:
3
output:
2 2 2000 2000 2 2000 2000 2 2000 2000 2 1 2 3 2000 2000 3 2000 2000 3 2000 2000 3 2 3
result:
ok AC
Test #4:
score: 0
Accepted
time: 3ms
memory: 3828kb
input:
5
output:
3 4 2000 2000 4 2000 2000 2 1 2 4 3 4 3 2000 2000 3 2000 2000 4 2 4 3 2 3 5 2000 2000 5 2000 2000 5 2000 2000 5 4 5
result:
ok AC
Test #5:
score: 0
Accepted
time: 2ms
memory: 3824kb
input:
6
output:
3 6 2000 2000 2 1 2 4 3 4 6 5 6 3 2000 2000 3 2000 2000 4 2 4 3 2 3 6 2000 2000 6 2000 2000 5 4 5 6 4 6
result:
ok AC
Test #6:
score: 0
Accepted
time: 2ms
memory: 3772kb
input:
7
output:
3 6 2000 2000 2 1 2 4 3 4 6 5 6 7 2000 2000 4 2 4 3 2 3 7 6 7 7 2000 2000 5 4 5 6 4 6 7 4 7
result:
ok AC
Test #7:
score: 0
Accepted
time: 2ms
memory: 3844kb
input:
8
output:
3 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 7 6 7 8 6 8 5 4 5 6 4 6 7 4 7 8 4 8
result:
ok AC
Test #8:
score: 0
Accepted
time: 2ms
memory: 3728kb
input:
9
output:
4 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 8 6 8 7 6 7 8 4 8 5 4 5 6 4 6 7 4 7 9 2000 2000 9 2000 2000 9 2000 2000 9 8 9
result:
ok AC
Test #9:
score: 0
Accepted
time: 3ms
memory: 3760kb
input:
10
output:
4 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 8 6 8 10 9 10 6 4 6 8 4 8 5 4 5 11 10 11 7 6 7 9 8 9 10 8 10 11 8 11
result:
ok AC
Test #10:
score: 0
Accepted
time: 2ms
memory: 3792kb
input:
11
output:
4 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 8 6 8 10 9 10 6 4 6 8 4 8 5 4 5 11 10 11 7 6 7 9 8 9 10 8 10 11 8 11
result:
ok AC
Test #11:
score: 0
Accepted
time: 2ms
memory: 3824kb
input:
12
output:
5 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 8 6 8 10 9 10 6 4 6 8 4 8 5 4 5 11 10 11 11 8 11 7 6 7 9 8 9 10 8 10 12 2000 2000 12 2000 2000 12 2000 2000 12 11 12
result:
ok AC
Test #12:
score: 0
Accepted
time: 2ms
memory: 3736kb
input:
13
output:
5 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 8 6 8 10 9 10 12 11 12 6 4 6 8 4 8 12 10 12 3 2 3 10 8 10 12 8 12 5 4 5 7 6 7 13 2000 2000 9 8 9 11 10 11 13 12 13
result:
ok AC
Test #13:
score: 0
Accepted
time: 3ms
memory: 3736kb
input:
14
output:
6 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 3 2 3 8 6 8 10 9 10 6 4 6 8 4 8 5 4 5 11 10 11 11 8 11 7 6 7 9 8 9 10 8 10 14 2000 2000 14 2000 2000 12 11 12 14 13 14 14 2000 2000 14 2000 2000 13 12 13 14 12 14
result:
ok AC
Test #14:
score: 0
Accepted
time: 3ms
memory: 3792kb
input:
15
output:
6 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 8 6 8 10 9 10 12 11 12 6 4 6 8 4 8 12 10 12 14 13 14 10 8 10 12 8 12 3 2 3 5 4 5 14 12 14 7 6 7 9 8 9 11 10 11 15 2000 2000 15 2000 2000 13 12 13 15 14 15
result:
ok AC
Test #15:
score: 0
Accepted
time: 2ms
memory: 3760kb
input:
16
output:
6 2 1 2 4 3 4 6 5 6 8 7 8 4 2 4 8 6 8 10 9 10 12 11 12 6 4 6 8 4 8 12 10 12 14 13 14 10 8 10 12 8 12 15 14 15 3 2 3 15 12 15 5 4 5 7 6 7 9 8 9 11 10 11 13 12 13 14 12 14 16 15 16
result:
ok AC