Shulou(Shulou.com)06/03 Report--

This article introduces the knowledge of "how to realize the brothers of ACwing pilots". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

# include#include#include#include#define x first#define y secondusing namespace std;typedef pair PII;using namespace std;const int N = 5Posichar g [N] [N], backup [N] [N]; int get (int x camera int y) {return x camera 4 minutes;} / /'+ 'indicates a closed state '-' denotes the open state void turn_one (int xreint y) {if (g [x] [y] = ='+') g [x] [y] ='-'; else g [x] [y] ='+';} void turn_all (int xreint y) {for (int item0 for [I];} vector res; / / enumerates all scenarios for (int op=0;op)

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