View Compilation Error

0_0_37702112_6026.cpp: In function 'int main()':
0_0_37702112_6026.cpp:65:18: error: expected initializer before '-' token
         int x1,y1-;
                  ^
0_0_37702112_6026.cpp:76:21: error: 'y1' was not declared in this scope
                     y1=j;
                     ^
0_0_37702112_6026.cpp:93:27: error: 'y1' was not declared in this scope
             ll ans=bfs(x1,y1,s[0].x,s[0].y);
                           ^