Submission #339344

#	Time	Username	Problem	Language	Result	Execution time	Memory
339344		beksultan04	Riddick's Cube (IZhO13_riddicks)	C++14	0 / 100	471 ms	65540 KiB

riddicks

#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 <bool, vector <vector <int> > > ,int> mp;
deque <pair <bool, vector <vector <int> > > >q;

bool is_row(vector <vector <int> >v){
    int i,j;
    for (i=0;i<v.size();++i){
        for (j=1;j<v[i].size();++j){
            if (v[i][j] != v[i][j-1])ret 0;
        }
    }
    ret 1;
}
bool is_columm(vector <vector <int> >v){
    int i,j;
    for (i=1;i<v.size();++i){
        for (j=0;j<v[i].size();++j){
            if (v[i][j] != v[i-1][j])ret 0;
        }
    }
    ret 1;
}


void fun1 (vector <int> &v){
    vector <int> p;
    for (int j=0;j<m;++j){
        p.pb(v[j]);
    }
    for (int j=0;j<m;++j){
        v[j] = p[(j+1)%m];
    }
}

void fun2 (vector <int> &v){
    vector <int> p;
    for (int j=0;j<m;++j){
        p.pb(v[j]);
    }
    for (int j=0;j<m;++j){
        v[j] = p[((j-1)+m)%m];
    }
}

pair <bool,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 <bool,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(){
    vector <vector <int > >v;
    cin>>n>>m;
    v.resize(n);
    int i,j;
    for (i=0;i<n;++i){
        v[i].resize(m);
        for (j=0;j<m;++j){
            cin>>v[i][j];
        }
    }
    mp[{0,v}]=1;
    q.pb({0,v});
    int h=0;
    while (!q.empty()){
        pair <bool,vector <vector <int> >> t = q[0];
        q.pop_front();
        if (mp[t] == 100500)break;
        if (is_row(t.sc) || is_columm(t.sc)){
            cout <<mp[t]-1;
            ret 0;
        }
        if (t.fr == 0){
            for (i=0;i<m;++i){
                {
                    pair <bool,vector <vector <int> >> to = fun3(t,i);
                    if (!mp[to]){
                        mp[to] = mp[t]+1;
                        q.pb(to);
                    }
                }
                {
                    pair <bool,vector <vector <int> >> to = fun4(t,i);
                    if (!mp[to]){
                        mp[to] = mp[t]+1;
                        q.pb(to);
                    }
                }
            }
        }
        for (i=0;i<t.sc.size();++i){
            {
                pair <bool,vector <vector <int> >> to = t;
                fun1(to.sc[i]);
                to.fr = 1;
                if (!mp[to] && !mp[{0,to.sc}]){
                    mp[to] = mp[t]+1;
                    q.pb(to);
                }
            }
            {
                pair <bool,vector <vector <int> >> to = t;
                fun2(to.sc[i]);
                to.fr = 1;
                if ( !mp[to] && !mp[{0,to.sc}]){
                    mp[to] = mp[t]+1;
                    q.pb(to);
                }
            }
        }

    }
    cout <<100500;
}

Compilation message (stderr)

riddicks.cpp: In function 'bool is_row(std::vector<std::vector<int> >)':
riddicks.cpp:27:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (i=0;i<v.size();++i){
      |              ~^~~~~~~~~
riddicks.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for (j=1;j<v[i].size();++j){
      |                  ~^~~~~~~~~~~~
riddicks.cpp: In function 'bool is_columm(std::vector<std::vector<int> >)':
riddicks.cpp:36:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for (i=1;i<v.size();++i){
      |              ~^~~~~~~~~
riddicks.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for (j=0;j<v[i].size();++j){
      |                  ~^~~~~~~~~~~~
riddicks.cpp: At global scope:
riddicks.cpp:88:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   88 | main(){
      |      ^
riddicks.cpp: In function 'int main()':
riddicks.cpp:128:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  128 |         for (i=0;i<t.sc.size();++i){
      |                  ~^~~~~~~~~~~~
riddicks.cpp:101:9: warning: unused variable 'h' [-Wunused-variable]
  101 |     int h=0;
      |         ^

• Subtask 1: 0 / 100