Submission #467708

#	Time	Username	Problem	Language	Result	Execution time	Memory
467708		ETK	Xylophone (JOI18_xylophone)	C++14	100 / 100	138 ms	448 KiB

xylophone

#include "xylophone.h"
#include <bits/stdc++.h>
#define rep(i,a,b) for(int i=(a);i<=(b);++i)
#define per(i,a,b) for(int i=(a);i>=(b);--i)
#define pii pair<int,int>
#define vi vector<int>
#define fi first
#define se second
#define pb push_back
#define ALL(x) x.begin(),x.end()
#define ll long long
using namespace std;
inline ll read(){
    ll x=0,f=1;char ch=getchar();
    while (!isdigit(ch)){if (ch=='-') f=-1;ch=getchar();}
    while (isdigit(ch)){x=x*10+ch-48;ch=getchar();}
    return x*f;
}
void solve(int N){
    int A[N],D[N],B[N];
    rep(i,1,N-1)D[i]=query(i,i+1);
    rep(i,2,N-1)B[i]=query(i-1,i+1);
    bool up=1;
    A[0]=0,A[1]=D[1];
    rep(i,2,N-1){
        if(D[i-1]+D[i]!=B[i])up^=1;
        if(up)A[i]=A[i-1]+D[i];
        else A[i]=A[i-1]-D[i];
    }
    int mn=0,mx=0,mxp=0,mnp=0;
    rep(i,1,N-1){
        if(A[i]>mx)mx=A[i],mxp=i;
        if(A[i]<mn)mn=A[i],mnp=i;
    }
    if(mnp<mxp){
        rep(i,0,N-1){
            answer(i+1,A[i]-mn+1);
        }
    }else{
        rep(i,0,N-1){
            answer(i+1,mx-A[i]+1);
        }
    }
}

• Subtask 1: 11 / 11
• Subtask 2: 36 / 36
• Subtask 3: 53 / 53