View Compilation Error

0_0_30656331_31024.cpp:9:1: error: stray '\' in program
 else printf("NO"\n);
 ^
0_0_30656331_31024.cpp: In function 'int main()':
0_0_30656331_31024.cpp:9:18: error: expected ')' before 'n'
 else printf("NO"\n);
                  ^