View Compilation Error

0_0_16075771_14018.cpp: In function 'int main()':
0_0_16075771_14018.cpp:4:26: error: 'scanf' was not declared in this scope
 while(~scanf("%d%d",&a,&b)
                          ^
0_0_16075771_14018.cpp:5:1: error: expected ')' before 'printf'
 printf("%d\n",a+b);
 ^
0_0_16075771_14018.cpp:5:18: error: 'printf' was not declared in this scope
 printf("%d\n",a+b);
                  ^