제출 #339537

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
339537		beksultan04	Riddick's Cube (IZhO13_riddicks)	C++14	100 / 100	531 ms	492 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-12
const int N = 3e5+12,INF=100500;
int n,m,q[20][20],mn=INF;
bool is_row(){
    int i,j;
    for (i=0;i<n;++i){
        for (j=1;j<m;++j){
            if (q[i][j] != q[i][j-1])ret 0;
        }
    }
    ret 1;
}
bool is_col(){
    int i,j;
    for (i=1;i<n;++i){
        for (j=0;j<m;++j){
            if (q[i][j] != q[i-1][j])ret 0;
        }
    }
    ret 1;
}

void fun2(int i,int ans){
    int j;
    if (i >= n){
        if (is_row() || is_col()){
            mn = min(ans,mn);
        }
        ret;
    }
    vector <int> pom;
    pom.resize(m+1);
    for (int x = 0;x<m;++x){
        for (j=0;j<m;++j){
            pom[j]=q[i][j];
        }
        for (j=0;j<m;++j){
            q[i][j] = pom[(j+x)%m];
        }
        fun2(i+1,ans+min(m-x,x));
        for (j=0;j<m;++j){
            q[i][j] = pom[j];
        }

    }
}
void fun1(int j,int ans){
    int i;
    if (j >= m){
        fun2(0ll,ans);
        ret ;
    }
    vector <int> pom;
    pom.resize(n+1);

    for (int x = 0;x<n;++x){
        for (i=0;i<n;++i){
            pom[i]=q[i][j];
        }
        for (i=0;i<n;++i){
            q[i][j] = pom[(i+x)%n];
        }
        fun1(j+1,ans+min(n-x,x));
        for (i=0;i<n;++i){
            q[i][j] = pom[i];
        }
    }
}




main(){
    int i,j;
    scan2(n,m)
    for (i=0;i<n;++i){
        for (j=0;j<m;++j){
            scan1(q[i][j])
        }
    }
    fun1(0,0);
    cout <<mn;

}

컴파일 시 표준 에러 (stderr) 메시지

riddicks.cpp:91:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   91 | main(){
      |      ^
riddicks.cpp: In function 'int main()':
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:93:5: note: in expansion of macro 'scan2'
   93 |     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:96:13: note: in expansion of macro 'scan1'
   96 |             scan1(q[i][j])
      |             ^~~~~

• Subtask 1: 100 / 100