View Compilation Error

0_0_30131868_23057.cpp: In function 'int main()':
0_0_30131868_23057.cpp:117:4: error: 'd' was not declared in this scope
   {d
    ^
0_0_30131868_23057.cpp:119:4: error: 'x' was not declared in this scope
    x = fx[now];
    ^
0_0_30131868_23057.cpp:119:11: error: 'now' was not declared in this scope
    x = fx[now];
           ^