USACO Section 1.2PROB Transformations

挺有趣的一道题，呵呵，不算难

/*

ID: jusonal1

PROG: transform

LANG: C++

*/

#include <iostream>

#include <fstream>

#include <string>

#include <cstdio>

#include <algorithm>

#include <map>

#include <cstring>

using namespace std;

const int maxn = 15;

int n;

struct MP{

    char mp[maxn][maxn];

};

MP orign_map;

MP then_map;

MP new_map;

bool pattern_1(const MP a){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            if(then_map.mp[i][j] != a.mp[n-j+1][i])

                return false;

    return true;

}

bool pattern_2(const MP a){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            if(then_map.mp[i][j] != a.mp[n-i+1][n-j+1])

                return false;

    return true;

}

bool pattern_3(MP a){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            if(then_map.mp[i][j] != a.mp[j][n-i+1])

                return false;

    return true;

}

bool pattern_4(MP a){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            if(then_map.mp[i][j] != a.mp[i][n-j+1])

                return false;

    return true;

}

bool pattern_5(MP a){

    if(pattern_1(a)) return true;

    if(pattern_2(a)) return true;

    if(pattern_3(a)) return true;

    return false;

}

bool pattern_6(MP a){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            if(a.mp[i][j] != then_map.mp[i][j]) return false;

    return true;

}

void print(){

    for(int i = 1;i <= n;++i){

        for(int j = 1;j <= n;++j)

            printf("%c",new_map.mp[i][j]);

            puts("");

    }

    puts("");

}

void getmap(){

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

        scanf(" %c",&orign_map.mp[i][j]);

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

        scanf(" %c",&then_map.mp[i][j]);

    return ;

}

int main () {

    freopen("transform.in","r",stdin);

    freopen("transform.out","w",stdout);

    scanf("%d",&n);

    getmap();

    MP new_map;

    for(int i = 1;i <= n;++i)

        for(int j = 1;j <= n;++j)

            new_map.mp[i][j] = orign_map.mp[i][n-j+1];

    if(pattern_1(orign_map)) puts("1");

    else if(pattern_2(orign_map)) puts("2");

    else if(pattern_3(orign_map)) puts("3");

    else if(pattern_4(orign_map)) puts("4");

    else if(pattern_5(new_map)) puts("5");

    else if(pattern_6(orign_map))puts("6");

    else puts("7");

    return 0;

}