Submission #72195

#	Time	Username	Problem	Language	Result	Execution time	Memory
72195		김동현보다 잘함 (#118)	Magic Dowsing (FXCUP3_magic)	C++17	100 / 100	3 ms	376 KiB

dowsing

#include "dowsing.h"
#include<bits/stdc++.h>

using namespace std;

int mini(int a, int b) {
    int arr[3] = {1,1,1};
    arr[min(a,2)] = 0; arr[min(b,2)] = 0;
    for (int i=0;i<3;i++)if (arr[i]) return i;
    return 0;
}

void chk(int c, int d) {
    if (c==d) Report(c+1,d+1);
    else if (Detect(c+1,mini(c,d)+1)) Report(c+1,d+1);
    else Report(d+1,c+1);
}

void rchk(int c, int d) {
    if (c==d) Report(c+1,d+1);
    else if (Detect(c+1,mini(c,d)+1)) Report(c+1,c+1);
    else Report(d+1,d+1);
}

void FindTreasure(int N) {
    int i, c = -1, d = -1;
    for (i=0;i<N;i++){
        if (Detect(i+1,i+1)) {
            if (c<0) c = i;
            else d = i;
        }
    }
    if (c>=0) {
        chk(c,d);
        return;
    }
    for (i=0;i<(N-1)/2;i++) {
        if (Detect(i+1,N-i)) {
            rchk(i,N-1-i);
            return;
        }
    }
    rchk((N-1)/2,N-1-(N-1)/2);
}

• Subtask 1: 100 / 100