View Compilation Error

0_0_37499305_3642.cpp:56:9: error: missing terminating " character
         if(flag==0) cout<<"Yes<<endl;
         ^
0_0_37499305_3642.cpp: In function 'int main()':
0_0_37499305_3642.cpp:57:9: error: expected primary-expression before 'else'
         else cout<<"No"<<endl;
         ^