View Compilation Error

0_0_13735160_7502.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13735160_7502.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13735160_7502.cpp:3:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13735160_7502.cpp:4:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_13735160_7502.cpp: In function 'int main()':
0_0_13735160_7502.cpp:12:18: error: 'scanf' was not declared in this scope
     scanf("%d",&t);
                  ^
0_0_13735160_7502.cpp:15:31: error: 'memset' was not declared in this scope
         memset(dp,0,sizeof(dp));
                               ^
0_0_13735160_7502.cpp:22:52: error: 'max' was not declared in this scope
                     dp[j]=max(dp[j],dp[j-c[i]]+w[i]);
                                                    ^
0_0_13735160_7502.cpp:25:30: error: 'printf' was not declared in this scope
         printf("%d\n",n-dp[n]);
                              ^