foo.cc: In function 'int main()':
foo.cc:45:23: error: no matching function for call to 'count(char [100], char [100], int&, int&)'
    num=count(t,s2,L,n1);
                       ^
foo.cc:13:5: note: candidate: int count(char*, int, char*, int) <near match>
 int count(char s1[],int n1,char s2[],int n2)
     ^~~~~
foo.cc:13:5: note:   conversion of argument 3 would be ill-formed:
foo.cc:45:23: error: invalid conversion from 'int' to 'char*' [-fpermissive]
    num=count(t,s2,L,n1);
                       ^
In file included from /usr/include/c++/7/algorithm:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
                 from foo.cc:1:
/usr/include/c++/7/bits/stl_algo.h:4076:5: note: candidate: template<class _IIter, class _Tp> typename std::iterator_traits<_Iterator>::difference_type std::count(_IIter, _IIter, const _Tp&)
     count(_InputIterator __first, _InputIterator __last, const _Tp& __value)
     ^~~~~
/usr/include/c++/7/bits/stl_algo.h:4076:5: note:   template argument deduction/substitution failed:
foo.cc:45:23: note:   candidate expects 3 arguments, 4 provided
    num=count(t,s2,L,n1);
                       ^
foo.cc:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
   ~~~~~^~~~~~~~~

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