View Compilation Error

0_0_18026505_21417.cpp:8:5: error: stray '\' in program
     sum+=s*now\n;
     ^
0_0_18026505_21417.cpp:9:5: error: stray '\' in program
     s=s*(1-1.0\n);
     ^
0_0_18026505_21417.cpp: In function 'void expect(int, int, double)':
0_0_18026505_21417.cpp:8:16: error: expected ';' before 'n'
     sum+=s*now\n;
                ^
0_0_18026505_21417.cpp:9:16: error: expected ')' before 'n'
     s=s*(1-1.0\n);
                ^