Codeforces Round 883 (Div. 3)

1846A - Rudolph and Cut the Rope

1846B - Rudolph and Tic-Tac-Toe

首先我的代码是错误的，其次这个代码又不好的地方：

#include <iostream>
using namespace std;
const int N = 4;
char ch[N][N];



int main(){
	int t;cin >> t;
	while(t --){
		for(int i = 1;i <= 3;i ++){
			for(int j = 1;j <= 3;j ++){
				cin >> ch[i][j];
			}
		}
		//列
		if(ch[1][1] == ch[2][1] && ch[1][1] == ch[3][1]){
			if(ch[1][1] == '.') cout << "DRAW" << endl;
			else cout << ch[1][1] << endl;
			goto lz ;
		}
		if(ch[1][2] == ch[2][2] && ch[1][2] == ch[3][2]){
			if(ch[1][2] == '.') cout << "DRAW" << endl;
			else cout << ch[1][2] << endl;
			goto lz ;
		}
		if(ch[1][3] == ch[2][3] && ch[1][3] == ch[3][3]){
			if(ch[1][3] == '.') cout << "DRAW" << endl;
			else cout << ch[1][3] << endl;
			goto lz ;
		}

		//列
		if(ch[1][1] == ch[1][2] && ch[1][1] == ch[1][3]){
			if(ch[1][1] == '.') cout << "DRAW" << endl;
			else cout << ch[1][1] << endl;
			goto lz ;
		}
		if(ch[2][1] == ch[2][2] && ch[2][1] == ch[2][3]){
			if(ch[2][1] == '.') cout << "DRAW" << endl;
			else cout << ch[2][1] << endl;
			goto lz ;
		}
		if(ch[3][1] == ch[3][2] && ch[3][1] == ch[3][3]){
			if(ch[3][1] == '.') cout << "DRAW" << endl;
			else cout << ch[3][1] << endl;
			goto lz ;
		}
		
		//对角线
		if(ch[1][1] == ch[2][2] && ch[1][1] == ch[3][3]){
			if(ch[1][1] == '.') cout << "DRAW" << endl;
			else cout << ch[1][1] << endl;
			goto lz;
		}
		
		if(ch[1][3] == ch[2][2] && ch[1][3] == ch[3][1]){
			if(ch[1][3] == '.') cout << "DRAW" << endl;
			else cout << ch[1][3] << endl;
			goto lz ;
		}
		lz:;
		
	}
	
	return 0;
}

相比使用goto，更好的一种方式是用一个变量存储答案，然后最后一个输出端口