hidden.cpp: In function 'std::vector<int> valid(std::vector<int>, int, int, int, int)':
hidden.cpp:6:20: error: 'n' was not declared in this scope
6 | if(ch.size()<=(n/2)+1)return ch;
| ^
hidden.cpp:9:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
9 | for(int i = 0;i<ch.size();i++){
| ~^~~~~~~~~~
hidden.cpp: In function 'std::vector<int> findSequence(int)':
hidden.cpp:42:53: error: expected ')' before '{' token
42 | while(isSubsequence(valid(ch,N,x,cut,N-cut)){
| ~ ^
| )
hidden.cpp:45:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
45 | if(ch.size()>N){
| ~~~~~~~~~^~
grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
28 | fprintf (fifo_out, "%d\n", ans.size ());
| ~^ ~~~~~~~~~~~
| | |
| int std::vector<int>::size_type {aka long unsigned int}
| %ld
grader.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
29 | for (int i=0; i<ans.size () && i < N; i++)
| ~^~~~~~~~~~~~