View Compilation Error

0_0_39092188_9839.cpp: In function 'int bfs()':
0_0_39092188_9839.cpp:17:17: error: 's' was not declared in this scope
   17 |                 s[x]=1;
      |                 ^
0_0_39092188_9839.cpp:19:21: error: lvalue required as left operand of assignment
   19 |                 if(x-1=0) q.push({x-1,y+1});
      |                    ~^~