View Compilation Error

0_0_36851673_1169.cpp:64:5: error: missing terminating " character
     cout << ans << "\n;
     ^
0_0_36851673_1169.cpp: In function 'int main()':
0_0_36851673_1169.cpp:66:5: error: expected primary-expression before 'return'
     return 0;   
     ^