View Compilation Error

0_0_29666963_7099.cpp: In function 'int main()':
0_0_29666963_7099.cpp:21:9: error: expected ';' before 'll'
         ll ans=0;
         ^
0_0_29666963_7099.cpp:26:13: error: 'ans' was not declared in this scope
             ans+=(t.a+t.b +t.c);
             ^
0_0_29666963_7099.cpp:38:13: error: 'ans' was not declared in this scope
             ans+=s1.a*(2*s1.x-1)+s1.b;
             ^
0_0_29666963_7099.cpp:40:25: error: 'ans' was not declared in this scope
         printf("%lld\n",ans);
                         ^