HDU 4584 Building bridges

 
#include    
#include    
#include    
#include    
#include    
#include    
#include    
#include    
#include    
#include    
#include    
#include //形如INT_MAX一类的   
#define MAX 100005   
#define INF 0x7FFFFFFF   
#define REP(i,s,t) for(int i=(s);i<=(t);++i)   
#define ll long long   
#define mem(a,b) memset(a,b,sizeof(a))   
#define mp(a,b) make_pair(a,b)   
#define L(x) x<<1   
#define R(x) x<<1|1   
# define eps 1e-5   
//#pragma comment(linker, "/STACK:36777216") ///传说中的外挂   
using namespace std;  
  
int n,m;  
char map[44][44];  
  
int main(){  
    while(cin >> n >> m) {  
        if(n == 0 && m == 0) break;  
        for(int i=0; i> map[i];  
        int x1,y1,x2,y2;  
        int tmp = 111111111;  
        for(int i=0; i





 t) {  
                                    tmp = t;  
                                    x1 = i; y1 = j;  
                                    x2 = k; y2 = l;  
                                }  
                            }  
                        }  
                    }  
                }  
            }  
        }  
        printf("%d %d %d %d\n",x1,y1,x2,y2);  
    }  
    return 0;  
}