View Compilation Error

0_0_25624114_15012.cpp:17:1: error: expected initializer before 'bool'
 bool check(node a){
 ^
0_0_25624114_15012.cpp: In function 'int bfs()':
0_0_25624114_15012.cpp:25:9: error: 's' was not declared in this scope
  q.push(s);
         ^
0_0_25624114_15012.cpp:35:15: error: 'check' was not declared in this scope
    if(check(q2)&&map[q2.x][q2.y]!=0){
               ^
0_0_25624114_15012.cpp: In function 'int main()':
0_0_25624114_15012.cpp:58:6: error: 's' was not declared in this scope
      s.x=i;
      ^