답안 #284315

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
284315	2020-08-27T08:29:14 Z	최은수(#5747)	Arcade (NOI20_arcade)	C++17	컴파일 오류	0 ms	0 KB

Arcade

#include<iostream>
#include<vector>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18;
inline bool chk(const pi&x,const pi&y)
{
    return abs(x.fi-y.fi)>=abs(x.se-y.se);
}
bool dp2[105][105];
bool dp[105][105][105];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m;
    cin>>n>>m;
    vector<pi>v(m);
    for(pi&t:v)
        cin>>t.fi;
    for(pi&t:v)
        cin>>t.se;
    sort(all(v));
    bool f=1;
    for(int i=1;i<n;i++)
        if(!chk(v[i-1],v[i]))
            f=0;
    if(f)
        return cout<<1<<endl,0;
    dp2[1][0]=1;
    for(int i=1;i<n;i++)
    {
        if(!chk(v[i-1],v[i]))
            break;
        dp2[i+1][i]=1;
    }
    for(int i=2;i<n;i++)
    {
        for(int j=0;j<i-1;j++)
        {
            if(!dp2[i-1][j])
                continue;
            if(chk(v[i],v[i-1]))
                dp2[i][j]=1;
            if(chk(v[i],v[j]))
                dp2[i][i-1]=1;
        }
    }
    bool f=0;
    for(int i=0;i<n-1;i++)
        if(dp2[n-1][i])
            f=1;
    if(f)
        return cout<<2<<endl,0;
    cout<<3<<endl;
    return 0;
}

Compilation message

Arcade.cpp: In function 'int main()':
Arcade.cpp:58:10: error: redeclaration of 'bool f'
   58 |     bool f=0;
      |          ^
Arcade.cpp:33:10: note: 'bool f' previously declared here
   33 |     bool f=1;
      |          ^