View Compilation Error

0_0_26555886_17488.cpp: In function 'int main()':
0_0_26555886_17488.cpp:6:2: error: 'c' was not declared in this scope
 {c=a+b;
  ^
0_0_26555886_17488.cpp:7:20: error: expected ';' before '}' token
 printf ("%d\n",a+b)};
                    ^