View Compilation Error

0_0_20881879_28610.cpp:1:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_20881879_28610.cpp:2:10: error: #include expects "FILENAME" or <FILENAME>
 #include 
          ^
0_0_20881879_28610.cpp: In function 'int main()':
0_0_20881879_28610.cpp:7:28: error: 'scanf' was not declared in this scope
 while(scanf("%d %d", &N, &M) && (M||N))
                            ^
0_0_20881879_28610.cpp:9:20: error: 'sqrt' was not declared in this scope
     len=(sqrt(M*2.0));     
                    ^
0_0_20881879_28610.cpp:14:58: error: 'printf' was not declared in this scope
                    printf("[%d,%d]\n", temp/i+1, temp/i+i);  
                                                          ^
0_0_20881879_28610.cpp:16:22: error: 'printf' was not declared in this scope
           printf("\n");
                      ^