/*
Code written by Talant I.D.
*/
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;
using namespace std;
//typedef tree <int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
#define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define OK cout << "OK" << endl;
inline bool isvowel(char ch){
ch = tolower(ch);
return (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u');
}
inline bool isprime(int n){
if(n < 2 || (n%2 == 0 && n != 2)) return false;
for(int i = 3; i*i <= n; i++)
if(n%i == 0) return false;
return true;
}
class Union{
private:
vector <int> saizu, link;
public:
Union(int n){
saizu.assign(n, 1); link.resize(n);
iota(all(link), 0);
}
int find(int n){
if(link[n] == n) return n;
return link[n] = find(link[n]);
}
int same(int a, int b){
return find(a) == find(b);
}
void unite(int a, int b){
if(same(a, b)) return;
a = find(a); b = find(b);
if(saizu[a] < saizu[b]) swap(a, b);
saizu[a] += saizu[b];
link[b] = a;
}
int getsize(int a){
return saizu[find(a)];
}
};
const int mod = 1e9+7;
ll mode(ll a){
a %= mod;
if(a < 0) a += mod;
return a;
}
ll subt(ll a, ll b){
return mode(mode(a)-mode(b));
}
ll add(ll a, ll b){
return mode(mode(a)+mode(b));
}
ll mult(ll a, ll b){
return mode(mode(a)*mode(b));
}
ll binpow(ll a, ll b){
ll res = 1;
while(b){
if(b&1) res = mult(res, a);
a = mult(a, a);
b >>= 1;
}
return res;
}
int n, m, grid[5][5], grid2[5][5], grid3[5][5];
int check(int i1, int i2, int i3, int i4, int i5, int j1, int j2, int j3, int j4, int j5){
for(int i = 0; i < n; i++)
grid2[(i+i1)%n][0] = grid[i][0];
if(m > 1)
for(int i = 0; i < n; i++)
grid2[(i+i2)%n][1] = grid[i][1];
if(m > 2)
for(int i = 0; i < n; i++)
grid2[(i+i3)%n][2] = grid[i][2];
if(m > 3)
for(int i = 0; i < n; i++)
grid2[(i+i4)%n][3] = grid[i][3];
if(m > 4)
for(int i = 0; i < n; i++)
grid2[(i+i5)%n][4] = grid[i][4];
for(int j = 0; j < m; j++)
grid3[0][(j+j1)%m] = grid2[0][j];
if(n > 1)
for(int j = 0; j < m; j++)
grid3[1][(j+j2)%m] = grid2[1][j];
if(n > 2)
for(int j = 0; j < m; j++)
grid3[2][(j+j3)%m] = grid2[2][j];
if(n > 3)
for(int j = 0; j < m; j++)
grid3[3][(j+j4)%m] = grid2[3][j];
if(n > 4)
for(int j = 0; j < m; j++)
grid3[4][(j+j5)%m] = grid2[4][j];
int flag1 = 0, flag2 = 0;
for(int i = 0; i < n; i++){
int flag = 0;
for(int j = 1; j < m; j++){
if(grid3[i][j] != grid3[i][j-1]){
flag++;
break;
}
}
if(!flag) flag1++;
}
for(int j = 0; j < m; j++){
int flag = 0;
for(int i = 1; i < n; i++){
if(grid3[i][j] != grid3[i-1][j]){
flag++;
break;
}
}
if(!flag) flag2++;
}
if(flag1 == n || flag2 == m){
int ansi[5], ansj[5];
for(int i = 0; i < 5; i++) ansi[i] = ansj[i] = 0;
ansi[0] = min(i1, n-i1);
if(m > 1) ansi[1] = min(i2, n-i2);
if(m > 2) ansi[2] = min(i3, n-i3);
if(m > 3) ansi[3] = min(i4, n-i4);
if(m > 4) ansi[4] = min(i5, n-i5);
ansj[0] = min(j1, m-j1);
if(n > 1) ansj[1] = min(j2, m-j2);
if(n > 2) ansj[2] = min(j3, m-j3);
if(n > 3) ansj[3] = min(j4, m-j4);
if(n > 4) ansj[4] = min(j5, m-j5);
int sum = 0;
for(int i = 0; i < 5; i++){
sum += ansi[i]+ansj[i];
}
return sum;
}
return 100500;
}
int main(){
do_not_disturb
cin >> n >> m;
for(int i = 0; i < n; i++){
for(int j = 0; j < m; j++){
cin >> grid[i][j];
}
}
int ans = 100500;
for(int i1 = 0; i1 < n; i1++)
for(int i2 = 0; i2 < n; i2++)
for(int i3 = 0; i3 < n; i3++)
for(int i4 = 0; i4 < n; i4++)
for(int i5 = 0; i5 < n; i5++)
for(int j1 = 0; j1 < m; j1++)
for(int j2 = 0; j2 < m; j2++)
for(int j3 = 0; j3 < m; j3++)
for(int j4 = 0; j4 < m; j4++)
for(int j5 = 0; j5 < m; j5++)
ans = min(ans, check(i1, i2, i3, i4, i5, j1, j2, j3, j4, j5));
cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
0 ms |
364 KB |
Output is correct |
| 3 |
Correct |
1 ms |
364 KB |
Output is correct |
| 4 |
Correct |
12 ms |
364 KB |
Output is correct |
| 5 |
Correct |
14 ms |
364 KB |
Output is correct |
| 6 |
Correct |
40 ms |
364 KB |
Output is correct |
| 7 |
Correct |
38 ms |
492 KB |
Output is correct |
| 8 |
Correct |
215 ms |
364 KB |
Output is correct |
| 9 |
Correct |
808 ms |
492 KB |
Output is correct |
| 10 |
Correct |
844 ms |
492 KB |
Output is correct |
| 11 |
Correct |
840 ms |
492 KB |
Output is correct |
| 12 |
Correct |
845 ms |
492 KB |
Output is correct |
| 13 |
Execution timed out |
2095 ms |
364 KB |
Time limit exceeded |
| 14 |
Halted |
0 ms |
0 KB |
- |
