foo.cc:1:2: error: stray '#' in program
    1 | |#include<cstdio>
      |  ^
foo.cc:1:1: error: expected unqualified-id before '|' token
    1 | |#include<cstdio>
      | ^
foo.cc: In function 'int main()':
foo.cc:38:5: error: 'scanf' was not declared in this scope
   38 |     scanf("%d%d%d",&n,&m,&t);
      |     ^~~~~
foo.cc:51:5: error: 'printf' was not declared in this scope
   51 |     printf("%d",ans);
      |     ^~~~~~
foo.cc:3:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
    2 | #include<cstring>
  +++ |+#include <cstdio>
    3 | #define ll long long

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