제출 #502952

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
502952		Marduk	Xylophone (JOI18_xylophone)	C++14	컴파일 에러	0 ms	0 KiB

xylophone

#include <bits/stdc++.h>
#include "xylophone.h"
using namespace std;

const int MAXN = (1e3+7);

bool arr[MAXN];
int memo_d[MAXN], memo_t[MAXN];
int sol[MAXN];

int D(int x){
    if(memo_d[x]) return memo_d[x];
    return memo_d[x] = query(x, x+1);
}

int T(int x){
    if(memo_t[x]) return memo_t[x];
    return memo_t[x] = query(x, x+2);
}

void solve(int N){

    arr[2] = true;
    for(int i = 1;i<=N-2;i++){

        if(D(i)+D(i+1) == T(i)) arr[i+2] = true;
        else arr[i+2] = false;
    }

    for(int i = 0;i<2;i++){
        MIN = MAXN;
        for(int i = 2;i<=N;i++){
            sol[i] = sol[i-1] + (arr[i]%2-(arr[i]+1)%2)*D(i-1);
            MIN = min(MIN,sol[i]);
            arr[i]*=-1;
        }

        bool found = 0;
        for(int i = 1;i<=N;i++){
            if(sol[i]+(1-MIN) == 1) break;
            if(sol[i]+(1-MIN) == N) {found = 1; break;}
        }

        if(!found){
            for(int i = 1;i<=N;i++) answer(i,sol[i]+(1-MIN));
            return;
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:31:9: error: 'MIN' was not declared in this scope
   31 |         MIN = MAXN;
      |         ^~~
xylophone.cpp:35:19: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context]
   35 |             arr[i]*=-1;
      |             ~~~~~~^~~~