View Compilation Error

0_0_22417581_27819.cpp:10:1: error: stray '\' in program
 printf(%d\n",a+b);
 ^
0_0_22417581_27819.cpp:10:1: error: missing terminating " character
0_0_22417581_27819.cpp: In function 'int main()':
0_0_22417581_27819.cpp:10:8: error: expected primary-expression before '%' token
 printf(%d\n",a+b);
        ^
0_0_22417581_27819.cpp:10:9: error: 'd' was not declared in this scope
 printf(%d\n",a+b);
         ^