View Compilation Error

0_0_19632785_8941.cpp: In function 'int main()':
0_0_19632785_8941.cpp:8:21: error: 'scanf' was not declared in this scope
  while(scanf("%d",&n) != EOF)
                     ^
0_0_19632785_8941.cpp:8:26: error: 'EOF' was not declared in this scope
  while(scanf("%d",&n) != EOF)
                          ^
0_0_19632785_8941.cpp:31:27: error: 'printf' was not declared in this scope
             printf("Yes\n");
                           ^
0_0_19632785_8941.cpp:33:26: error: 'printf' was not declared in this scope
             printf("No\n");
                          ^