hidden.cpp: In function 'std::vector<int> findSequence(int)':
hidden.cpp:16:13: warning: unused variable 'k' [-Wunused-variable]
16 | int i,j,k,l,ok=0,now=0,x1=0,y1=0,x,y;
| ^
hidden.cpp:16:28: warning: unused variable 'x1' [-Wunused-variable]
16 | int i,j,k,l,ok=0,now=0,x1=0,y1=0,x,y;
| ^~
hidden.cpp:16:33: warning: unused variable 'y1' [-Wunused-variable]
16 | int i,j,k,l,ok=0,now=0,x1=0,y1=0,x,y;
| ^~
hidden.cpp:16:38: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
16 | int i,j,k,l,ok=0,now=0,x1=0,y1=0,x,y;
| ^
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++)
| ~^~~~~~~~~~~~