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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#583088 | #7687. Randias Permutation Task | qinglu09# | WA | 1ms | 4000kb | C++14 | 2.4kb | 2024-09-22 18:17:17 | 2024-09-22 18:17:18 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int,int> PII;
typedef pair<ll,ll> PLL;
#define endl '\n'
#define debug(x) cout<<#x<<": "<<x<<endl
#define i128 __int128
#define rep(i,a,b) for(ll i=(a);i<=(b);i++)
#define per(i,a,b) for(ll i=(a);i>=(b);i--)
const int N=1e3+10,M=1e3+10;
const ll mod=1e9+7;
const ld eps=1e-12;
const double pi=acos(-1.0);
const double pi1=pi/180,pi2=180/pi;
mt19937_64 rnd(chrono::steady_clock::now().time_since_epoch().count());
//unordered_map<int,int>mp;
#define poly vector<int>
int a[200][200];
int pos[200][200];
void solve()
{
int n,m;
cin>>m>>n;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
{
cin>>a[i][j];
pos[i][a[i][j]]=j;
}
}
for(int i=1;i<=m;i++) a[0][i]=i,pos[0][i]=i;
if(n<=20)//二进制枚举
{
set<vector<int>>st;
for(int i=1;i<(1<<n);i++)
{
vector<int>now(m,0);
for(int j=1;j<=n;j++)
{
if((i>>(j-1))&1)
{
for(int k=0;k<m;k++)
{
now[k]=(now[k]+pos[j][k+1]-k-1+m)%m;
//debug(pos[j][k+1]);
}
}
}
st.insert(now);
}
cout<<st.size()<<endl;
}
else//dfs
{
int vis[n+1];
memset(vis,0,sizeof(vis));
set<vector<int>>st[n+1];
function<void(int)>dfs=[&](int x)
{
vis[x]=1;
vector<int>now(m,0);
for(int k=0;k<m;k++)
now[k]=(now[k]+pos[x][k+1]-k-1+m)%m;
if(x!=0) st[x].insert(now);
for(int i=x+1;i<=n;i++)
{
if(!vis[i]) dfs(i);
for(vector<int>old:st[i])
{
vector<int>nw(m,0);
for(int k=0;k<m;k++)
nw[k]=(now[k]+old[k]+m)%m;
st[x].insert(nw);
}
}
};
dfs(0);
cout<<st[0].size()<<endl;
}
}
int main()
{
ios::sync_with_stdio(0);
cin.tie(0),cout.tie(0);
int T=1;
//cin>>T;
while(T--)
{
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3616kb
input:
5 4 1 2 3 4 5 5 1 3 4 2 3 4 1 5 2 5 2 4 1 3
output:
8
result:
ok 1 number(s): "8"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
2 1 2 1
output:
1
result:
ok 1 number(s): "1"
Test #3:
score: 0
Accepted
time: 1ms
memory: 4000kb
input:
1 180 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
1
result:
ok 1 number(s): "1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3588kb
input:
180 1 52 71 167 89 165 102 119 125 9 128 180 24 48 172 108 22 164 28 159 111 30 91 67 51 136 97 126 133 177 65 115 157 114 11 171 178 23 127 163 103 99 18 56 94 176 77 44 1 124 74 61 87 4 40 63 92 169 84 146 6 88 55 152 49 10 90 43 174 70 50 69 154 73 147 110 20 82 59 112 12 64 143 16 138 5 170 155 ...
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3952kb
input:
2 90 1 2 1 2 1 2 1 2 2 1 2 1 2 1 2 1 1 2 2 1 1 2 1 2 1 2 2 1 2 1 2 1 2 1 1 2 1 2 1 2 1 2 2 1 1 2 2 1 1 2 1 2 1 2 2 1 2 1 1 2 2 1 1 2 2 1 1 2 1 2 2 1 1 2 2 1 2 1 2 1 2 1 1 2 2 1 2 1 2 1 2 1 1 2 1 2 2 1 2 1 1 2 1 2 1 2 2 1 1 2 2 1 2 1 1 2 2 1 2 1 2 1 2 1 2 1 2 1 2 1 1 2 1 2 1 2 2 1 1 2 1 2 2 1 1 2 1 2...
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3836kb
input:
90 2 43 44 28 69 66 18 5 23 87 8 24 89 31 29 81 1 68 2 78 53 49 54 4 13 77 61 33 57 63 85 55 79 46 35 45 64 65 42 30 6 19 74 82 80 17 26 32 59 7 72 16 3 47 73 39 36 25 34 56 86 71 62 84 40 41 11 50 27 20 14 37 12 38 58 48 83 76 70 51 88 22 90 21 9 10 60 15 52 75 67 9 73 52 51 81 16 71 77 6 57 11 75 ...
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: -100
Wrong Answer
time: 1ms
memory: 3700kb
input:
3 60 2 1 3 3 1 2 3 2 1 1 2 3 1 2 3 3 2 1 3 1 2 2 3 1 2 1 3 3 1 2 2 3 1 2 3 1 2 1 3 3 2 1 3 1 2 3 2 1 1 2 3 2 1 3 2 1 3 2 1 3 2 3 1 2 3 1 2 3 1 3 1 2 1 2 3 3 1 2 2 3 1 2 3 1 2 1 3 1 2 3 3 1 2 2 1 3 2 3 1 2 3 1 2 3 1 3 1 2 2 3 1 1 2 3 1 2 3 3 2 1 3 1 2 3 1 2 2 3 1 1 3 2 3 1 2 1 3 2 1 2 3 1 3 2 1 3 2 3...
output:
9
result:
wrong answer 1st numbers differ - expected: '6', found: '9'