View Compilation Error

0_0_37849721_10506.cpp: In function 'void slove()':
0_0_37849721_10506.cpp:70:5: error: 'll' was not declared in this scope
     ll ans = 0;
     ^
0_0_37849721_10506.cpp:77:13: error: 'ans' was not declared in this scope
             ans += w;
             ^
0_0_37849721_10506.cpp:84:13: error: 'ans' was not declared in this scope
     cout << ans << endl;
             ^