제출 #166839

#제출 시각아이디문제언어결과실행 시간메모리
166839anubhavdharFoehn Phenomena (JOI17_foehn_phenomena)C++14
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h>

#define ll long long int 
#define FOR(i,N) for(i=0;i<N;i++)
#define FORe(i,N) for(i=1;i<=N;i++)
#define FORr(i,a,b) for(i=a;i<b;i++)
#define ff first
#define ss second
#define mp make_pair
#define pb push_back
#define vi vector<ll>
#define ii pair<ll,ll>
#define vii vector<ii>

const ll MAXN = 1e5;
const ll LOGN = 17;
const ll ROOTN = 320;
const ll INF = 1e17+21;
const ll MOD = 1e9 + 7;

using namespace std;

ll N,Q,S,T,i,L,R,x,prev = 0,temp = 0;

inline ll TEMPERATURE(ll a)
{
	return ((a < 0)? (- T*a) : (- S*a));
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	cin>>N>>Q>>S>>T;
	N++;
	ll A[N];
	FOR(i,N)
	{
		cin>>x;
		A[i] = x - prev;
		prev = x;
		temp += TEMPERATURE(A[i]);//(A[i] < 0) ? (A[i]*T) : (A[i]*S);
	}
	//cout<<"temp now = "<<temp<<endl;
	//FOR(i,N)
	//	cout<<A[i]<<" ";
	//cout<<endl;
	while (Q--)
	{
		cin>>L>>R>>x;
		A[L] += x;
		temp += TEMPERATURE(A[L]) - TEMPERATURE(A[L] - x);
		//cout<<"due to L = "<<L<<"we do temp+="<< TEMPERATURE(A[L]) <<" - "<< TEMPERATURE(A[L] - x)<<"; so temp = "<<temp<<endl;
		if (R<N-1)
		{
			A[R+1] -= x;
			temp += TEMPERATURE(A[R+1]) - TEMPERATURE(A[R+1] + x);
			//cout<<"due to R = "<<L<<"we do temp+="<< TEMPERATURE(A[R+1]) <<" - "<< TEMPERATURE(A[R+1] + x)<<"; so temp = "<<temp<<endl;
		}
		//FOR(i,N)
			//cout<<A[i]<<" ";
		//cout<<endl;
		cout<<temp<<endl;
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

foehn_phenomena.cpp: In function 'int main()':
foehn_phenomena.cpp:41:14: error: reference to 'prev' is ambiguous
   A[i] = x - prev;
              ^~~~
foehn_phenomena.cpp:23:20: note: candidates are: long long int prev
 ll N,Q,S,T,i,L,R,x,prev = 0,temp = 0;
                    ^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:66:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from foehn_phenomena.cpp:1:
/usr/include/c++/7/bits/stl_iterator_base_funcs.h:220:5: note:                 template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
     prev(_BidirectionalIterator __x, typename
     ^~~~
foehn_phenomena.cpp:42:3: error: reference to 'prev' is ambiguous
   prev = x;
   ^~~~
foehn_phenomena.cpp:23:20: note: candidates are: long long int prev
 ll N,Q,S,T,i,L,R,x,prev = 0,temp = 0;
                    ^~~~
In file included from /usr/include/c++/7/bits/stl_algobase.h:66:0,
                 from /usr/include/c++/7/bits/char_traits.h:39,
                 from /usr/include/c++/7/ios:40,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from foehn_phenomena.cpp:1:
/usr/include/c++/7/bits/stl_iterator_base_funcs.h:220:5: note:                 template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type)
     prev(_BidirectionalIterator __x, typename
     ^~~~