#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
#define eps 1e-15
const int N = 1e5+12,INF=1e9+7;
int n,m;
map <pair <int, vector <vector <int> > > ,int> mp;
vector <pair <int, vector <vector <int> > > >q;
bool is_row(pair <int,vector <vector <int> >>v){
int i,j;
for (i=0;i<v.sc.size();++i){
for (j=1;j<v.sc[i].size();++j){
if (v.sc[i][j] != v.sc[i][j-1])ret 0;
}
}
ret 1;
}
bool is_columm(pair <int,vector <vector <int> >>v){
int i,j;
for (i=1;i<v.sc.size();++i){
for (j=0;j<v.sc[i].size();++j){
if (v.sc[i][j] != v.sc[i-1][j])ret 0;
}
}
ret 1;
}
pair <int,vector <vector <int> >>fun1 (pair <int,vector <vector <int> >>v,int i){
vector <int> p;
for (int j=0;j<m;++j){
p.pb(v.sc[i][j]);
}
for (int j=0;j<m;++j){
v.sc[i][j] = p[(j+1)%m];
}
ret v;
}
pair <int,vector <vector <int> >>fun2 (pair <int,vector <vector <int> >>v,int i){
vector <int> p;
for (int j=0;j<m;++j){
p.pb(v.sc[i][j]);
}
for (int j=0;j<m;++j){
v.sc[i][j] = p[((j-1)+m)%m];
}
ret v;
}
pair <int,vector <vector <int> >>fun3 (pair <int,vector <vector <int> >>v,int j){
vector <int> p;
for (int i=0;i<n;++i){
p.pb(v.sc[i][j]);
}
for (int i=0;i<n;++i){
v.sc[i][j] = p[((i+1)+n)%n];
}
ret v;
}
pair <int,vector <vector <int> >> fun4(pair <int,vector <vector <int> >>v,int j){
vector <int> p;
for (int i=0;i<n;++i){
p.pb(v.sc[i][j]);
}
for (int i=0;i<n;++i){
v.sc[i][j] = p[((i-1)+n)%n];
}
ret v;
}
main(){
pair <int,vector <vector <int> >>v;
scan2(n,m)
v.sc.resize(n+1);
int i,j;
for (i=0;i<n;++i){
v.sc[i].resize(m+1);
for (j=0;j<m;++j){
scan1(v.sc[i][j])
}
}
v.fr =1;
mp[v]=1;
q.pb(v);
int h=0;
while (q.size()>h){
pair <int,vector <vector <int> >> t = q[h++];
if (mp[t] == 100500)break;
if (is_row(t) || is_columm(t)){
cout <<mp[t]-1;
ret 0;
}
if (t.fr == 1){
{
pair <int,vector <vector <int> >> to = fun3(t,i);
if (!mp[to]){
mp[to] = mp[t]+1;
q.pb(to);
}
}
{
pair <int,vector <vector <int> >> to = fun4(t,i);
if (!mp[to]){
mp[to] = mp[t]+1;
q.pb(to);
}
}
}
for (i=0;i<m;++i){
for (i=0;i<t.sc.size();++i){
{
pair <int,vector <vector <int> >> to = fun1(t,i);
to.fr = 2;
if (!mp[to]){
mp[to] = mp[t]+1;
q.pb(to);
}
}
{
pair <int,vector <vector <int> >> to = fun2(t,i);
to.fr = 2;
if (!mp[to]){
mp[to] = mp[t]+1;
q.pb(to);
}
}
}
}
}
cout <<100500;
}
Compilation message
riddicks.cpp: In function 'bool is_row(std::pair<long long int, std::vector<std::vector<long long int> > >)':
riddicks.cpp:27:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 | for (i=0;i<v.sc.size();++i){
| ~^~~~~~~~~~~~
riddicks.cpp:28:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | for (j=1;j<v.sc[i].size();++j){
| ~^~~~~~~~~~~~~~~
riddicks.cpp: In function 'bool is_columm(std::pair<long long int, std::vector<std::vector<long long int> > >)':
riddicks.cpp:36:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
36 | for (i=1;i<v.sc.size();++i){
| ~^~~~~~~~~~~~
riddicks.cpp:37:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for (j=0;j<v.sc[i].size();++j){
| ~^~~~~~~~~~~~~~~
riddicks.cpp: At global scope:
riddicks.cpp:90:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
90 | main(){
| ^
riddicks.cpp: In function 'int main()':
riddicks.cpp:105:20: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, std::vector<std::vector<long long int> > > >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
105 | while (q.size()>h){
| ~~~~~~~~^~
riddicks.cpp:129:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
129 | for (i=0;i<t.sc.size();++i){
| ~^~~~~~~~~~~~
riddicks.cpp:12:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
12 | #define scan2(a,b) scanf("%lld %lld",&a, &b);
| ~~~~~^~~~~~~~~~~~~~~~~~~~
riddicks.cpp:92:5: note: in expansion of macro 'scan2'
92 | scan2(n,m)
| ^~~~~
riddicks.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
11 | #define scan1(a) scanf("%lld",&a);
| ~~~~~^~~~~~~~~~~
riddicks.cpp:98:13: note: in expansion of macro 'scan1'
98 | scan1(v.sc[i][j])
| ^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
1 ms |
492 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 2 |
Halted |
0 ms |
0 KB |
- |
