View Compilation Error

0_0_34777679_25412.cpp:21:3: error: stray '\' in program
   printf("%d"\n,num);
   ^
0_0_34777679_25412.cpp: In function 'int main()':
0_0_34777679_25412.cpp:21:15: error: expected ')' before 'n'
   printf("%d"\n,num);
               ^