제출 #540434

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
540434		krit3379	Xylophone (JOI18_xylophone)	C++17	컴파일 에러	0 ms	0 KiB

xylophone

#include<bits/stdc++.h>
using namespace std;
#define N 5005

int a[N],b[N],ans[N];

void solve(int n){
    int i,mi=0,ma=0,pmi=1,pma=1;
    for(i=1;i<n;i++){
        a[i]=query(i,i+1);
        if(i!=n-1)b[i]=query(i,i+2);
    }
    for(i=1;i<n-1;i++){
        if(b[i]!=abs(a[i])+a[i+1]&&a[i]>0)a[i+1]*=-1;
        else if(b[i]==abs(a[i])+a[i+1]&&a[i]<0)a[i+1]*=-1;
    }
    ans[1]=0;
    for(i=1;i<n;i++){
        ans[i+1]+=ans[i]+a[i];
        if(ans[i+1]<mi)mi=ans[i+1],pmi=i+1;
        if(ans[i+1]>ma)ma=ans[i+1],pma=i+1;
    }
    for(i=1;i<=n;i++)ans[i]-=mi-1;
    if(pmi<pma)for(i=1;i<=n;i++)answer(i,ans[i]);
    else for(i=1;i<=n;i++)answer(i,n-ans[i]+1);
    return ;
}

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:10:14: error: 'query' was not declared in this scope
   10 |         a[i]=query(i,i+1);
      |              ^~~~~
xylophone.cpp:24:33: error: 'answer' was not declared in this scope
   24 |     if(pmi<pma)for(i=1;i<=n;i++)answer(i,ans[i]);
      |                                 ^~~~~~
xylophone.cpp:25:27: error: 'answer' was not declared in this scope
   25 |     else for(i=1;i<=n;i++)answer(i,n-ans[i]+1);
      |                           ^~~~~~