View Compilation Error

0_0_38605225_32156.cpp: In function 'void solve()':
0_0_38605225_32156.cpp:32:12: error: 'Fill' was not declared in this scope
     int k; Fill(Next,0);
            ^~~~
0_0_38605225_32156.cpp:33:5: error: 'scanf' was not declared in this scope
     scanf("%d%d%d",&n,&m,&k);
     ^~~~~
0_0_38605225_32156.cpp:38:5: error: 'printf' was not declared in this scope
     printf("Case #%d: ",cas++);
     ^~~~~~
0_0_38605225_32156.cpp:38:5: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
0_0_38605225_32156.cpp:1:1:
+#include <cstdio>
 /** @Cain*/
0_0_38605225_32156.cpp:38:5:
     printf("Case #%d: ",cas++);
     ^~~~~~