oj.uz

Submission #72109

# Submission time Handle Problem Language Result Execution time Memory
72109 2018-08-26T05:19:39 Z BBBSNG(#2263, youngyojun, sebinkim, dlalswp25) Magic Dowsing (FXCUP3_magic) C++17
100 / 100
 3 ms 376 KB 
#include "dowsing.h"

#include <bits/stdc++.h>

using namespace std;

int y = 0, n;

void yeah(int x, int y)
{
	Report(x, y);
}

void f(int s, int e)
{
	if(s == e){
		yeah(s, s);
		return;
	}
	
	int a = Detect(s, s);
	int b = Detect(e, e);
	
	if(a == 1 && b == 1){
		int i;
		for(i=1; i<=n; i++) if(i != s && i != e) break;
		if(Detect(e, i)) yeah(e, s);
		else yeah(s, e);
	}
	else if(a == 1){
		int i, j;
		for(i=s+1; i<e; i++) if(Detect(i, i)) break;
		//(s, i) or (i, s)
		for(j=1; j<=n; j++) if(j != s && j != i) break;
		if(Detect(s, j)) yeah(s, i);
		else yeah(i, s);
	}
	else if(b == 1){
		int i, j;
		for(i=s+1; i<e; i++) if(Detect(i, i)) break;
		//(e, i) or (i, e)
		for(j=1; j<=n; j++) if(j != e && j != i) break;
		if(Detect(e, j)) yeah(e, i);
		else yeah(i, e);
	}
	else{
		
		if(s + 1 == e){
			int i;
			for(i=1; i<=n; i++) if(i != s && i != e) break;
			if(Detect(s, i)) Report(s, s);
			else Report(e, e);
			return;
		}
		
		int c = Detect(s, e);
		
		if(c == 1){
			int i;
			for(i=1; i<=n; i++) if(i != s && i != e) break;
			if(Detect(s, i)) Report(s, s);
			else Report(e, e);
		}
		
		else f(s + 1, e - 1);
	}
}

void FindTreasure(int N) { n = N; f(1, N); }

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Correct : C = 4
2 Correct 2 ms 256 KB Correct : C = 4
3 Correct 3 ms 376 KB Correct : C = 148
4 Correct 3 ms 376 KB Correct : C = 148
5 Correct 3 ms 376 KB Correct : C = 150
6 Correct 3 ms 376 KB Correct : C = 149
7 Correct 3 ms 376 KB Correct : C = 147
8 Correct 3 ms 376 KB Correct : C = 150
9 Correct 3 ms 376 KB Correct : C = 150
10 Correct 3 ms 376 KB Correct : C = 4
11 Correct 3 ms 376 KB Correct : C = 13
12 Correct 3 ms 376 KB Correct : C = 7