View Compilation Error

0_0_33641044_70.cpp: In function 'int spfa()':
0_0_33641044_70.cpp:36:9: error: 's' was not declared in this scope
  q.push(s);
         ^
0_0_33641044_70.cpp: In function 'int main()':
0_0_33641044_70.cpp:76:12: error: too many arguments to function 'int spfa()'
   if(spfa(1)) printf("winnable\n");
            ^
0_0_33641044_70.cpp:33:5: note: declared here
 int spfa() {
     ^