Job 17002

Compiler output

prog.cpp: In function 'bool check(int, int)':
prog.cpp:21:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < open.size(); ++i) {
                    ^
prog.cpp: In function 'int main()':
prog.cpp:58:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < s.size(); ++j) {
                     ^

Results