Submission #28549

#	Time	Username	Problem	Language	Result	Execution time	Memory
28549		not good but never sad (#68)	LR Springboard (FXCUP2_springboard)	C++14	1 / 1	3 ms	2088 KiB

Main

#include "springboard.h"
#include <vector>
using namespace std;

void Reorder(int N) {
	PutBall((N+1)/2);
	vector<int> cand;
	if (PutBall((N+1)/2) == -1){
		for (int i=(N+1)/2;i<=N;i++) cand.push_back(i);
	}
	else{
		for (int i=0;i<(N+1)/2;i++) cand.push_back(i);
	}

	while (cand.size() > 1){
		int step = (cand.size() + 1) / 2;
		if (cand.back() != N) step = N + 1 - step;

		int r = PutBall(step);
		vector<int> ncand;
		for (int i=0;i<cand.size();i++){
			int nxt = (cand[i] + step) % (N+1);
			if ((cand[i] - nxt) * r > 0) ncand.push_back(nxt);
		}
		cand = ncand;
	}

	int push = N-cand[0]+1;
	if (1 <= push && push <= N) PutBall(push);
}

Compilation message (stderr)

springboard.cpp: In function 'void Reorder(int)':
springboard.cpp:21:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i=0;i<cand.size();i++){
                 ^

• Subtask 1: 1 / 1